2025 (GLOBE NEWSWIRE) -- Aura Minerals Inc
(TSX: ORA) (B3: AURA33) (OTCQX: ORAAF) (“Aura” or the “Company”) is pleased to announce that production ramp-up at its Borborema Mine (“Borborema” or “Mine”) has commenced
The mine and plant are currently in operation and the Company expects to achieve commercial production by Q3 2025
Borborema is poised to become a cornerstone asset for Aura
expected to have the second-highest annual production among the Company's five operations currently at production stage
Aura envisions Borborema to be a strong economic driver and a testament to its strategic growth in Brazil's mining landscape
“The start of production at Borborema marks a proud milestone for Aura—our fifth mining operation and second greenfield project
projected to be one of our lowest-cost mines
built on time and on budget in just 19 months with zero lost time incidents
This success showcases our strategy of creating simple
and efficient projects that are easy to build and run
setting the stage for Aura as a reliable operator and new mine builder
Borborema stands as a global ESG benchmark
driven by innovations like using grey water from the nearby municipality and renewable energy
fully embodying our Aura 360 commitment to responsible operations.”
“We are also pleased to highlight the strong economic fundamentals of the Mine
which delivers an after-tax internal rate of return (IRR) of 41.8% on an unleveraged basis and 81.4% considering 50% leverage
based on a gold price of US$2,600 per ounce1
these figures do not yet reflect the significant upside potential from future reserve growth
particularly once the road relocation is executed.”
The 100% owned Borborema project is an open pit gold mine
located in the municipality of Currais Novos in the northeast of Brazil
Aura announced a Feasibility Study indicating an anticipated production of 748,000 ounces of gold over 11.3-year LOM
with possibilities for even greater output in a deposit with over 2,000,000 contained ounces of gold in Indicated Mineral Resource category
Aura holds 100% of Borborema Inc.'s shares
According to the Company’s Guidance announced on February 27
the Company expects 2025 production at Borborema to be between 33,000 and 40,000 ounces of gold
Figure 1: Location of the Borborema Project
Figure 2: Borborema Project-Mineral Resource Outlines
Feasibility Study Mineral Reserve Optimized Pit Shell and Current Highway
The scientific and technical information contained in this press release has been reviewed and approved by Farshid Ghazanfari
an employee of Aura and a “qualified person” within the meaning of NI 43-101
Aura is focused on mining in complete terms – thinking holistically about how its business impacts and benefits every one of our stakeholders: our company
and the countries and communities we serve
Aura is a mid-tier gold and copper production company focused on operating and developing gold and base metal projects in the Americas
The Company has 5 operating mines including the Aranzazu copper-gold-silver mine in Mexico
and the Minosa (San Andres) mine in Honduras
The Company’s development projects include Cerro Blanco in Guatemala and Matupá in Brazil
Aura has unmatched exploration potential owning over 630,000 hectares of mineral rights and is currently advancing multiple near-mine and regional targets along with the Carajas (Serra da Estrela) copper project in the prolific Carajás region of Brazil
please contact us or follow our updates on our website and social media:
www.auraminerals.com X: @AuraMineralsNA) LinkedIn: aura-minerals-inc
This press release contains “forward-looking information” and “forward-looking statements”
as defined in applicable securities laws (collectively
“forward-looking statements”) which may include
events or developments that the Company expects or anticipates will or may occur in the future
including the timeline for the commencement of ramp up and for achieving commercial production
as well as the Company’s expectations regarding gold production at Borborema during 2025
besides the Company's expectations regarding the time required to complete the studies and to announce the start of construction of the Matupa Project
forward-looking statements can be identified by the use of words and phrases such as “plans,” “expects,” “is expected,” “budget,” “scheduled,” “estimates,” “forecasts,” “intends,” “anticipates,” or “believes” or variations (including negative variations) of such words and phrases
events or results “may,” “could,” “would,” “might” or “will” be taken
many of which are beyond the Company’s ability to predict
or control could cause actual results to differ materially from those contained in the forward-looking statements
Forward-looking statements are necessarily based upon a number of estimates and assumptions that
while considered reasonable by the Company
are inherently subject to significant business
economic and competitive uncertainties and contingencies
Specific reference is made to the most recent Annual Information Form on file with certain Canadian provincial securities regulatory authorities for a discussion of some of the factors underlying forward-looking statements
the ability of the Company to achieve its short-term and longer-term outlook and the anticipated timing and results thereof
the ability to lower costs and increase production
the ability of the Company to successfully achieve business objectives
copper and gold or certain other commodity price volatility
the uncertainties involved in interpreting geological data
environmental compliance and changes in environmental legislation and regulation
interest rate and exchange rate fluctuations
general economic conditions and other risks involved in the mineral exploration and development industry
Readers are cautioned that the foregoing list of factors is not exhaustive of the factors that may affect the forward-looking statements
All forward-looking statements herein are qualified by this cautionary statement
readers should not place undue reliance on forward-looking statements
The Company undertakes no obligation to update publicly or otherwise revise any forward-looking statements whether as a result of new information or future events or otherwise
If the Company does update one or more forward-looking statements
no inference should be drawn that it will make additional updates with respect to those or other forward-looking statements
1 This analysis is not included in the Borborema FS
this is a management simulation with a gold price of US$2,600 per ounce and keeping all other assumptions of the Feasibility Study unchanged2 Based on assumptions presented in the Feasibility Study Technical Report (NI 43-101) for the Borborema Gold Project
Photos accompanying this announcement are available at:
https://www.globenewswire.com/NewsRoom/AttachmentNg/55ed6d7c-d1cf-4d7e-a813-2343eb0ef47b
https://www.globenewswire.com/NewsRoom/AttachmentNg/82e5a891-0545-4c47-b697-2d5c8fd2214a
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expected to have the second-highest annual production among the company’s five operations currently at production stage
Aura envisions Borborema to be a strong economic driver and a testament to its strategic growth in Brazil’s mining landscape
“The start of production at Borborema marks a proud milestone for Aura – our fifth mining operation and second greenfield project
“We are also pleased to highlight the strong economic fundamentals of the mine
The 100%-owned Borborema project is an open pit gold mine
located in the municipality of Currais Novos
Aura holds 100% of Borborema Inc.’s shares
According to the company’s Guidance announced on February 27
the company expects 2025 production at Borborema to be between 33,000 and 40,000 ounces of gold
Borborema`s Highlights: Annual production average of 83,000 oz/year for the first three years
based on existing Proven and Probable Mineral Reserves
Submitted approval of the road relocation – Relocating the road has the potential to convert significant additional Indicated Mineral Resources (exclusive of current Mineral Reserves) into Mineral Reserves
Growing workforce contributing to region and community development: Borborema employs approximately 2,184 personnel directly and indirectly
with 68% currently hired from the local community with efforts to expand this percentage
encouraging entrepreneurship and regional economic growth
building a skilled local workforce for the plant operation
The company has five operating mines including the Aranzazu copper-gold-silver mine in Mexico
The company’s development projects include Cerro Blanco in Guatemala and Matupá in Brazil
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The latest update is out from Aura Minerals ( (TSE:ORA) )
Aura Minerals has successfully commenced the production ramp-up at its Borborema Mine in Brazil
with expectations to reach commercial production by Q3 2025
The Borborema Mine is anticipated to become a key asset for Aura
showcasing strong economic fundamentals with a high internal rate of return and significant potential for reserve growth
The project highlights Aura’s commitment to efficient and responsible mining
setting an ESG benchmark with innovations like using grey water and renewable energy
The mine is expected to contribute significantly to regional development
employing a large workforce from the local community
Aura Minerals is a mid-tier gold and copper production company focused on operating and developing gold and base metal projects in the Americas
including the Aranzazu copper-gold-silver mine in Mexico and several gold mines in Brazil and Honduras
Aura is committed to responsible mining practices
which considers the impact on stakeholders
For detailed information about ORA stock, go to TipRanks’ Stock Analysis page
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The latest update is out from Aura Minerals ( (TSE:ORA) )
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It is expected to produce 748,000 ounces of what is currently a very valuable metal
It will become the Miami-based mining company’s second-most productive resource and is expected to churn out 748,000 ounces over 11 years
The Latin American-focused gold producer’s top asset is the Minosa operation (San Andres Mine) in Honduras
It yielded over 78,000 ounces of the yellow metal during the 2024 calendar year
“With a forecast of production of 33,000 to 40,000 gold equivalent ounces [GEO] in 2025 and an average of 83,000 GEO in the first three years
our operations in the region strengthen the local economy
with 68 per cent of the [Borborema] team coming from the community,” Aura highlighted in a social media post
Chief executive Rodrigo Barbosa said the mine has strong economic fundamentals in a press release on Friday
He claims it will deliver an after-tax internal rate of return of 41.8 per cent on an unleveraged basis and 81.4 per cent considering 50 per cent leverage
This is based on a spot price of US$2,600 per ounce
Aura currently has five production and development-stage projects in Brazil
Guatemala and Honduras along with an exploration site in Colombia
#AURA33 – Aura Minerals iniciou o ramp-up da Mina Borborema
com produção comercial prevista para o 3T25
Borborema deve se tornar a 2ª maior operação anual dentre as 5 em produção
— Filipe Villegas (@FilipeVillegas) March 28, 2025
Read more: Calibre Mining awards inaugural First Nation scholarship to Newfoundland students
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the company adheres to the organization’s Responsible Gold Mining Principles
Gold is currently worth about US$3,055 per ounce
The British firm Metals Focus recently predicted that it would sink to an average of US$2,600 per ounce later this year
But, more influential financial companies like Goldman Sachs Group Inc (NYSE: GS) still say that the metal will hit US$3,300 per ounce by the end of 2025
Copper is the other element that Aura is focused on mining
The Aranzazu mine in Mexico primarily produces this commodity with gold and silver as byproducts
Calibre Mining is a sponsor of Mugglehead news coverage
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The once-in-a-lifetime find is estimated to be worth up to C$470K
They will have a 39% stake once Equinox completes the takeover
Investors sunk an additional US$21 billion into gold ETFs during the quarter
The company's current refining capacity in Montana isn't adequate to meet demand
The recent discovery of matching dinosaur footprints in Brazil and Cameroon reveals how dinosaurs lived before the continents separated
An international research team has found over 260 footprints from the Early Cretaceous period in Brazil’s Borborema region and Cameroon’s Koum Basin
These footprints illustrate the migration patterns of dinosaurs on a globe that looked very different from today’s
Millions of years before the world became interconnected through exploration and telecommunications
forming the continents and islands we recognize today
Jacobs from Southern Methodist University led the team that focused on the ancient supercontinent Gondwana
Gondwana was one of the large landmasses that emerged as Pangea began to break apart
Jacobs explained his team’s work in identifying a once-shared location for the footprints: “We determined that in terms of age
these footprints were similar,” he said
“In their geological and plate tectonic contexts
Africa and South America began to separate from Pangea
The resulting layer of crust formed the bed of the South Atlantic Ocean
Both the Borborema region and the Koum Basin display half-graben basins—geological structures characterized by a fault along only one side
providing evidence of where the Earth’s crust once fractured
Jacobs described the ancient geography: “One of the youngest and narrowest geological connections between Africa and South America was the elbow of northeastern Brazil
nestled against what is now the coast of Cameroon along the Gulf of Guinea.” He emphasized that “The two continents were continuous along that narrow stretch
so animals on either side of that connection could potentially move across it.”
Cameroon’s Cretaceous vertebrate fossil record is sparse
with its first dinosaur footprint discovered in 1986
This initial find was a theropod footprint
although small numbers of poorly preserved ornithopod and sauropod tracks were also found in the region
The team combined published information on these tracks and the region from that time with data from Brazil
These models integrated information on climate
and track locations to better understand both the ancient landscape and how dinosaurs moved across it
The prints were preserved in the mud and silt that lined the bottoms of lakes and rivers millions of years ago
these footprints are 3,700 miles (6,000 kilometers) apart
the dinosaurs that made them traveled the same ancient network of waterways in search of food
“Before the continental connection between Africa and South America was severed
rivers flowed and lakes formed in the basins
Plants fed the herbivores and supported a food chain
Muddy sediments left by the rivers and lakes contain dinosaur footprints
documenting that these river valleys could provide specific avenues for life to travel across the continents 120 million years ago,” explained Jacobs
these tracks would have been spread across a 1,000-mile-wide “corridor” of wildlife migration
The article “The Early Cretaceous Borborema-Cameroon Dinosaur Dispersal Corridor” was published in Vertebrate Paleoichnology: A Tribute to Martin Lockley New Mexico Museum of Natural History and Science Bulletin 95 in 2024.
Ryan Whalen covers science and technology for The Debrief. He holds a BA in History and a Master of Library and Information Science with a certificate in Data Science. He can be contacted at ryan@thedebrief.org, and follow him on Twitter @mdntwvlf.
Aura is a mid-tier gold and copper production company focused on operating and developing gold and base metals projects in the Americas
including the Aranzazu copper-gold-silver mine in Mexico
the Apoena (EPP) and Almas gold mines in Brazil
and the Minosa (San Adres) gold mine in Honduras
The company’s development projects include Borborema and Matupa
Borborema is expected to produce 748,000 ounces of gold over an initial 11.3-year mine life from an open pit gold mine
which sees the potential for additional production
the company expects commercial production to start in the third quarter of 2025
depreciation and amortization] EBITDA to US$267 million with average gold prices of nearly US$2,400 an ounce – well below current levels – while keeping costs firmly under control with our all-in-sustaining costs (AISC) at US$1,320 an ounce
below the industry average,’’ said Aura President and CEO Rodrigo Barbosa
“Almas operation overcame a challenging first half to deliver an outstanding full-year performance
producing 54,129 ounces at an AISC of US$1,139 per ounce,’’ he said
“This success sets a strong foundation for Borborema
which remains on track and on budget for its 2025 startup
promising higher average production and costs below average AISC.’’
Total production in the fourth quarter of 2024 reached 66,473 gold equivalent ounces (GEOs)
1.0% below the third quarter of 2024 and consistent with the same period last year
Total production for 2024 reached 267,232 GEO at current prices
a 13% increase when compared to 2023 at current prices
the 2025 production guidance expects production of 266,000 to 300,000 GEO
representing an increase of 33,000 GEO when compared to 2024 at current prices and up to 37,000 GEO at constant metal prices
Aura recently struck a definitive deal to acquire all the issued and outstanding shares of Bluestone Resources Inc
by way of a plan of arrangement in a deal worth US$74.3 million
Aura acquired a 100% stake in Bluestone’s Cerro Blanco gold project and the adjacent Mita Geothermal project in Jutiapa
Cerro Blanco is a near surface high grade gold deposit
The Mita Geothermal project is an advanced-stage renewable energy project licensed to produce up to 50 megawatts of power
Aura shares edged up 0.27% or $0.06 to $22.57
The shares trade in a 52-week range of $22.81 and $8.38
which earlier owned a 20% stake in Borborema
has elected to convert it into net smelter royalty (NSR)
American gold and copper mining company Aura Minerals has assumed complete ownership of Borborema
which owns the namesake gold project in Rio Grande do Norte
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Dundee’s subsidiary Dundee Resources has agreed to convert its 20% stake in Borborema into a 1.5% net smelter royalty (NSR) for the first 1.5 million ounces (moz) and 1% on the next 500,000oz of gold sold
Aura Minerals has completed a feasibility study on the Borborema project and plans to begin full construction at the mine with a $188m investment
The initial operating life of the mine is 11.3 years while the weighted average annual gold production at the mine is estimated at 65koz
the weighted average annual production is expected to be 83koz
The feasibility study has estimated the probable reserves of the mine at 812,000oz while the indicated and inferred reserves at the mine are 2,077koz and 393koz
This mine has the potential to convert 1,265koz of indicated mineral resources
The company expects to begin open-pit stripping in the second quarter of next year and the construction could be completed by the first quarter of 2025
First gold pour is targeted in the second quarter of the same year
followed by commercial production in the third quarter
Aura Minerals president and CEO Rodrigo Barbosa said: “Borborema is expected to contribute significantly to our overall production profile
and we are delighted to announce this highly accretive feasibility study
“Our optimism extends beyond the current findings
as a potential additional 1.265moz are expected to be converted to reserves following the completion of a 5.3km road relocation besides new resources that should be added in the future once ore body remains opened along strike and down dip
Borborema is poised to set new benchmarks with its important contributions to ESG standards by using treated greywater from the local community
and relying on a robust local labour force.”
Located in the southern part of Rio Grande do Norte
the mine is situated 26km from the town of Currais Novos
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Drill permitting underway at Ilo Este with initial drill programme design underway
Chancho al Palo drill permitting commencing in May
Significant geophysical targets identified at Chancho al Palo and Ilo Este following up from excellent initial IP results
surface exposure at Chancho confirms copper mineralisation
Copper asset portfolio continually growing with an additional licence pegged at Ilo Este and several other large packages under review
Solis continues to review multiple new opportunities across varied commodities and jurisdictions
2024) - Solis Minerals Limited (ASX: SLM) ("Solis" or the "Company") announces an update on the recently completed drilling programme at both the Estrela and Mina Vermelha prospects in Borborema
regional geochemical soil programme in Brazil and geophysical target generation in Peru
commented: "Our Peruvian copper assets are quickly moving to the fore and we have some very promising targets generated by our team on the ground
Ilo Este and Chancho al Palo both look to be excellent copper targets and we look forward to getting the permitting granted and start drilling as soon as possible"
"Solis is also constantly reviewing potential acquisitions and has implemented a series of cost cuts across the group with only essential expenditure being maintained until a new project is secured."
"The final assays have now been received for the Estrela and Mina Vermelha drilling but no lithium mineralisation of significance was reported
We are now undertaking a final review of all assay data from both Estrela and Mina Vermelha before deciding the next steps with regards to follow up exploration
Our first pass mapping and geochemical programmes have also advanced following access restrictions caused by high rainfall earlier in the year"
A detailed magnetic drone survey has been completed over extensions of Ilo Este; and an induced polarisation (IP) geophysical survey has been undertaken at Chancho al Palo (Ilo Norte) which followed-up a previous magnetic drone survey
To complement the extensive geological mapping campaign carried out during 2023 and the drone magnetometry survey of May 2023
an area in Chancho al Palo was covered by 8 lines of time-domain IP geophysical surveys of 16.7km total length
Dipole interval was 100m and line spacing 250m
The lines were oriented WNW to ESE and were limited to the east by the presence of recent sediments including caliche (calcrete)
The survey was carried out by the Peruvian company Deep Sounding EIRL
Figure 1; IP chargeability anomalies identified at Ilo Norte
Target 1 and Target 2 are coincident with Magnetic anomalies previously identified (see Figure 2
The focus of the survey was an eastern zone of Jurassic volcano-sedimentary rocks intruded by the Cretaceous coastal batholith
and similar rocks to the west displaying development of extensive hornfels alteration
The eastern area is considered prospective for porphyry mineralisation whilst the western area is prospective for IOCG (Iron oxide copper gold) style mineralisation
The areas are separated by a north-south fault with interpreted downthrow to the west with the IOCG zone being considered a higher-emplaced more distal expression of potential porphyry mineralisation to the east
Figure 2; Drone magnetic RTP anomaly coincident with IP anomaly at Ilo Norte
Copper mineralisation occurrences discovered during the geology mapping program in both the IOCG and porphyry target areas are shown in Figures 3 & 4 below
Figure 3; Tourmaline breccias1 at Chancho al Palo with copper oxides in tuffs - eastern porphyry zone (Coordinates 254930E
1The presence of copper oxides in surface samples indicate a mineral species only and should not be considered a substitute for analytical results
Visual estimates of mineral abundance should never be considered a proxy or substitute for laboratory analysis where concentrations or grades are the factor of primary economic interest
Figure 4; Copper oxides1 in structures associated with calcic
and epidote alteration with specularite veining - western IOCG zone
It is planned to submit drill permit applications at Chanco al Palo in May 2024
56.4 line km of drone magnetometry was carried out by Real Eagle Explorations EIRL at the eastern extension of the Ilo Este licences (see Figure 5
The average altitude of the drone was 35m and 25 readings per second were taken at a ground velocity of 10m/second
A mobile 01MagArrow-SX magnetometer was utilised to acquire the data
The area was constrained by the presence of high-tension powerlines to the south-east and a distance of 200m was maintained from the lines for safety and quality control purposes
The data is considered to be unimpacted by potential magnetic fields generated by the powerlines
1The presence copper oxide samples indicates a mineral species only and should not be considered a substitute for analytical results
Figure 5; Drone magnetometry survey completed at Ilo Este
The area has been successfully staked by Solis and normal final issuance procedures for grant of the licence are underway
The area is flanked by the regional Chololo fault to the northwest and is characterized by the accumulation of quaternary sediments in a SW-NE trending structural corridor
Ground magnetometry carried out in 2014 indicated a buried magnetic susceptibility anomaly in the west of the survey area and the drone survey was a direct follow- up of this in the permit Solis Ilo Este I (Figure 6)
The continuation of the anomaly led to the application of permit Solis Ilo Este II immediately prior to the drone survey
Results of the 2014 ground magnetometry and 2023 drone magnetometry have been analysed and stitched together by Fathom Geophysics of the USA and shown in the Figure 6 below
Figure 6; View of permits Solis Ilo Este I and II from the SW (minus 45 degrees) with induced magnetic anomalies shown as isosurfaces
A1 and A2 are anomalies in highly favourable structural settings indicating the potential presence of buried intrusives with associated magnetite
The results show the presence of potential alteration associated with magnetite that can be interpreted as extensions of the porphyry-style mineralisation encountered at Ilo Este to the west across the Chololo regional fault
Depth to the anomalies is uncertain albeit A1 and A2 appear to be closer to the surface than A3
Follow-up mapping of incised valleys and float will be undertaken to assess drill targets
The contract for drill permitting of Ilo Este has been awarded to Grupo GyA Soluciones GeoAmbientales SAC of Lima Peru and environmental monitoring programs are currently underway on the permits to support the application (Figure 7 below)
Updates on the progress of the drill permitting will be reported as the Company progresses through the process
Figure 7; Environmental monitoring station at Ilo Este,
this station will remain operational for 24 hours a day for one month
Figure 8; Current tenement holding in Peru both granted and applications
Solis now has 37,100 hectares of tenements in Southern Peru
A total of 843 geochemical soil samples were taken across three tenements on a 200m x 100m grid spacing in the North eastern portion of the Borborema project
in conjunction with field mapping and reconnaissance
was to indentify potential lithium bearing pegmatite sytems within previously unexplorerd terrain
with no material results recorded for lithium suite minerals
Solis has temporarily halted further expenditure on geochemical sampling until all tenements are mapped and priority target areas identified
Figure 9; Geochemical sampling undertaken to date on Borborema tenement package
All assay results have now been reported from the maiden drill programmes at Mina Vermelha and Estrela projects
No material assays for Lithium or any Lithium suite elements were reported
A full review of all geochemical data and logged pegmatites is being completed to assist with future exploration activities at Estrela
The proximity and strike of the Estrela pegmatite bodies are consistent with larger
pegmatite systems such as Salgadinho (located 350m to NE) and although drilling to date has not intersected lithium bearing dykes below mineralised outcrop
Solis believes potential still exists for discovery of Lithium bearing pegmatite systems on the extensive Estrela project
Mina Vermelha has also not reported any material Lithium assays and a final field investigation will be carried out before a decision to continue with the option agreement at Mina Vermelha is taken by the Board
it is unlikely Solis will contiune with any additional expenditure at this project
Solis is prioritising the advancement of the drill pemitting process in Peru over its Ilo Este and Chancho Al Palo (Ilo Norte) project areas while continuing to review lithium and copper opportunities in South America
Approximately 270 assays are pending for the initial geochemical programme in Borborema
anomalous areas of mineralisation will be followed up with additional sampling and ground checking
The regional team has been reduced significantly while the company review new opportunities and prepare for the next drill program
This announcement is authorised by Matthew Boyes
AustraliaMatt BoyesExecutive DirectorSolis Minerals Limited+61 8 6117 4795
Stephanie Richardson & Cameron Gilenko Investor RelationsMorrow Sodali+61 (8) 6160 4900
Neither the TSX Venture Exchange nor its Regulation Service Provider (as the term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy of accuracy of this news release
Solis Minerals is an emerging lithium explorer focusing on Latin American critical minerals
The Company owns a 100% interest or option to acquire 100% interest in the Borborema Lithium Project in NE Brazil
Brazil is rapidly growing in global importance as an exporter of lithium to supply increasing demand of battery manufacturers
hard-rock lithium ground on which early-stage reconnaissance mapping and sampling have verified
Drilling programmes are either underway or due to commence shortly
Solis also holds a 100% interest in 35,700ha of combined licences and applications of highly prospective IOCG (iron oxide copper/gold) and porphyry copper projects in southwestern Peru within the country's prolific coastal copper belt - a source of nearly half of Peru's copper production
and the Company does not assume any obligation to update or revise them to reflect new events or circumstances save as required by applicable law
The technical information in this news release was reviewed by Matthew Boyes
a Fellow of the Australian institute of Mining and Metallurgy (AusIMM)
a qualified person as defined by National Instrument 43-101 (NI 43-101)
The information in this ASX release concerning Geological Information and Exploration Results is based on and fairly represents information compiled by Mr Matthew Boyes
a Competent Person who is a Fellow of the Australasian Institute of Mining and Metallurgy
Mr Boyes is an employee of Solis Minerals Ltd
and has sufficient experience which is relevant to the style of mineralisation and types of deposit under consideration and to the exploration activities undertaken to qualify as a Competent Person as defined in the 2012 Edition of the "Australian Code for Reporting of Mineral Resources and Ore Reserves"
Mr Boyes consents to the inclusion in this report of the matters based on information in the form and context in which it appears
Mr Boyes has provided his prior written consent regarding the form and context in which the Geological Information and Exploration Results and supporting information are presented in this Announcement
Table 1: Drillholes collar table of completed drilling at Mina Vermelha and Estrela
APPENDIX 2Mining Concessions tableWestminster Peru SAC‐ Concessions and Applications as of 24th April 2024
Section 2 Reporting of Exploration Results (Criteria listed in the preceding section also apply to this section)
Kenorland Minerals is focused on early to advanced stage exploration in North America. The Company holds a 4% net smelter return royalty on the Frotet Project in Quebec, owned by Sumitomo Metal Mining Canada. The Frotet Project hosts... LEARN MORE
Aura estimates the mine to produce 748,000 oz of gold over 11 years
Canadian gold and copper miner Aura Minerals has selected Swedish engineering company AFRY to provide engineering
and commissioning services for its Borborema Project..
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2023 (GLOBE NEWSWIRE) -- Aura Minerals Inc
(TSX: ORA) (B3: AURA33) (OTCQX: ORAAF) (“Aura” or the “Company”) is pleased to announce that its Board of Directors (the “Board”) has approved the construction of the Borborema project (the “Project”)
the Board has authorized Aura’s indirect wholly owned subsidiary Cascar do Brasil Ltda
(“Cascar”) to enter in a credit facility for approximately US$100 million (“Term Loan”) with Banco Santander
(Brazil) to partially fund the construction of the Project
comments: "Our strategic vision is clear: to expedite the development of our projects as fast as we can
Acquiring Borborema in the latter half of last year was a pivotal move
Following nine months of meticulous research and planning
we are not only initiating construction but also securing sufficient funding to ensure the project reaches completion
We remain committed to meeting our growth targets for our shareholders
on-schedule and on-budget ramp-up of the Almas Project serves as a proven model
and we anticipate replicating this success with Borborema
we are already nearing completion of licensing for the upcoming Matupá Project
which is slated to commence construction next year."
“We would also like to emphasize the exceptionally high after-tax IRR of the Project
after-tax basis using consensus gold price projections
This figure rises to 51.9% when calculated with a gold price of $1,900 per ounce
It is worth noting that these figures do not account for the substantial potential for increasing mineral reserves once we proceed with the road relocation
our commitment to ESG best practices is fully integrated into the Borborema project
Borborema will serve as a benchmark in ESG excellence
The project plans to utilize grey water from the adjacent city and incorporate renewable energy sources
all in alignment with our holistic 360-degree culture”
The Company is targeting the completion of construction and the start of production by early 2025
Readers are reminded that mineral resources that are not mineral reserves do not have demonstrated economic viability
For more information regarding the results of the feasibility study on the Project
2023 and entitled “Aura Minerals Completes Feasibility Study for the Borborema Project and Increases Ownership Stake in Borborema Inc
which is available on Aura’s profile on SEDAR+ at www.sedarplus.ca
The scientific and technical information contained within this news release has been reviewed and approved by Tiãozito V
Technical Services Director for the Company
Cardoso is a Qualified Person as defined in National Instrument 43-101 – Standards of Disclosure for Mineral Projects
The Company has 4 operating mines including the Aranzazu copper-gold-silver mine in Mexico
The Company’s development projects include Borborema and Matupá both in Brazil
Aura has unmatched exploration potential owning over 650,000 hectares of mineral rights and is currently advancing multiple near-mine and regional targets along with the Serra da Estrela copper project in the prolific Carajás region of Brazil
This news release contains “forward-looking information” and “forward-looking statements”
the integration of ESG best practices in the operation of the Project
the terms and conditions of the Term Loan and the timing of completion of construction and commencement of production at the Project and
Aura aims to complete construction on the project and begin production in early 2025
Aura Minerals, a mining company based in the British Virgin Islands, has received its board’s clearance for the construction of the Borborema gold project in the state of Rio Grande do Norte
obtained a $100m (497.92 reais) term loan from Banco Santander to fund part of the project’s construction
The loan will have a five-year maturity term and principal payments will begin after a 24-month grace period
One of the requirements for the loan is that the project’s net debt to earnings before interest
depreciation and amortisation (EBITDA) ratio must not exceed 1.5x
The company aims to conclude construction at the gold project and begin production by early 2025
Aura Minerals president and CEO Rodrigo Barbosa: “Our strategic vision is clear: to expedite the development of our projects as fast as we can
“We remain committed to meeting our growth targets for our shareholders
on-schedule and on-budget ramp-up of the Almas project serves as a proven model
we are already nearing completion of licensing for the upcoming Matupá project
which is slated to commence construction next year.”
Aura released the results of the project feasibility study
which states that the project will have an anticipated production of 748,000oz of gold over an initial mine life of 11.3 years
It also estimated the construction to cost around $188m
The company is now the sole owner of the Borborema project
while Dundee Resources agreed to convert its 20% equity into a 1.5% net smelter royalty on the first 1.5 million ounces of gold sold
Once the production reaches a threshold of two million ounces
B3: AURA33 and OTCQX: ORAAF) (“Aura” or the “Company”) is pleased to announce that Borborema Inc
a wholly owned subsidiary and indirect owner of the Company’s Borborema gold project in Rio Grande do Norte State
has entered into an agreement with Gold Royalty Corp
(“Gold Royalty”) to secure US$31 million in financing to develop the Borborema Project (the “Transaction”)
The US$31 million in financing is composed of a US$21 million net smelter return royalty over the Borborema Project (the “NSR Royalty”) and a US$10 million gold-linked loan (the “Gold-Linked Loan”)
Together with the US$100 million term loan previously entered into with Banco Santander Brazil and US$14 million raised through gold collars with several financial institutions
has now secured over US$145 million towards construction of the Borborema Project
which has an estimated total construction capex of US$188 million
“We have successfully concluded our financing plan for the Borborema project with an additional US$31 million from Royalty and Gold Loan Agreements
bringing our total external funding to US$ 145 million
together with our own cash fully addresses the projected US$188 million capital expenditure
aligns perfectly with our goal to mitigate financial risks while enhancing shareholder equity returns.”
Completion of the Transaction is subject to customary conditions and is currently expected to be completed in December 2023
Aura is a mid-tier gold and copper production company focused on the development and operation of gold and base metal projects in the Americas
The Company’s four producing assets include the San Andres gold mine in Honduras
the EPP and the Almas gold mines in Brazil and the Aranzazu copper-gold-silver mine in Mexico
the Company has the Tolda Fria gold project in Colombia and four projects in Brazil
of which three gold projects: Borborema and Matupá
which are in development; and São Francisco
The Company also owns the Serra da Estrela copper project in Brazil
“forward-looking statements”) which include
many of which are beyond the Company’s ability to predict or control
could cause actual results to differ materially from those contained in the forward-looking statements
the ability of the Company to close the Transaction
the Company’s ability to achieve its short-term and longer-term outlook and the anticipated timing and results thereof
The Borborema gold project located in Seridó region of Borborema
The pre-feasibility study for the open-pit project was completed in September 2011
while the key environment license was received from Rio Grande do Norte state government Environmental Department (IDEMA) in April 2017
Crusader completed an optimisation study with a focus on a two million tonnes per annum (Mtpa) processing operation in February 2018
Bankable feasibility study for the project is expected to be finalised by the end of 2018
Anticipated to start production in 2020, Borborema is expected to produce approximately 70,000oz of gold a year. It is estimated to have a life of mine of 11 years
the historical Borborema gold project comprises three mining leases spread across 29km²
The project area is situated in the Borborema Province within the domain of the Seridó Fold Belt in north‐east Brazil
It is situated on top of the Seridó Group stratigraphy within a sequence of banded arkosic metapelitic schists
With a thickness ranging between 20m and 50m
the ore body remains open in all directions
Most of the gold mineralisation is found within a north-north-east‐trending structure
which forms part of the northern segment of the Santa Mônica dextral shear zone
The mineralised zones are hosted by re-crystallised sulphides
mostly comprising pyrrhotite and minor amounts of pyrite
The mineralised zone strikes from north-east to south-west and dips at approximately 35° south-east to a traced vertical depth of 300m
The Borborema mine is estimated to contain JORC 2012-compliant mineral reserves of 42.4Mt
It is expected to contain 1.61 million ounces (Moz) of gold grading 1.18g/t
The mine is expected to contain mineral resources of 2.43Moz
Conventional open-pit mining method, including drilling and blasting
The gold recovery rate is expected to be more than 90%
the ore zone will be mined by using a face shovel or backhoe excavator
while a front-end loader will be used as back-up
The 2Mtpa carbon-in-leach (CIL) processing plant at Borborema is expected to process 20Mt of ore for a period of ten years
Ore will pass through a three‐stage crushing unit (primary
The resultant product will be further eluded in a ZADRA circuit
before passing to the smelters for gold doré production
Power supply for the mine will be sourced from two existing 230kV power lines
Process water will be collected from a storage dam
which is proposed to be constructed 7.3km downstream from the plant
while wastewater will be collected from the nearby town of Currais Novos
The mine is located 25km from the mining town of Currais Novos
and can also be accessed from the city of Natal via Bitumen highway BR226
Crusader Resources engaged TetraTech Mining and Minerals (TetraTech) for reviewing the Borborema project data and conducting an optimised study
Axe Valley prepared the mining operating cost estimates for the project
while BVP Engenharia conducted the geotechnical studies
The pre-feasibility study was prepared by a group of companies
(TSX:YRI; NYSE:AUY LSE: AUY) (“Yamana” or “the Company”) provided an update on its generative exploration program activities
announcing positive drill results from the Lavra Velha
as well as the addition of two new projects
The generative exploration program is a key component of Yamana’s overall growth strategy
designed to advance the Company’s most prospective properties and lay the foundation for the next generation of Yamana mines
By prudently investing in its exploration project pipeline today
the Company expects to steadily increase its mineral resource base and generate consistent long-term growth in production and cash flow
The Company’s generative work is focused on its large land positions in mining-friendly jurisdictions in the Americas where Yamana already has producing mines and deep technical
This allows for the rapid advancement of the Company’s highest value projects while at the same time moving the most promising early-stage properties up the exploration pipeline
The main objectives of the generative program are the discovery of a standalone project with inferred mineral resources of at least 1.5 million ounces of gold equivalent within three years that
can support the development of a new cash flow generating mine with production of 150,000 ounces per year for at least eight years
Projects in the generative exploration program are categorized and defined as follows:
The first year of the generative exploration program showed significant progress
notwithstanding limited drilling activity due to COVID-19 related restrictions
strengthening the Company’s conviction that it will meet its objective of discovering a standalone project with inferred mineral resources of at least 1.5 million ounces of gold equivalent within three years
and value of Yamana’s generative portfolio
which now consists of 11 projects including the addition of two new Tier 3 projects
along with several others in the generative portfolio
are located in close proximity to producing Yamana mines
which will allow the Company to leverage its expertise and experience in these regions to advance the projects and potentially benefit from existing infrastructure should these projects become producing mines
and Cambista-Cambiazo show excellent potential to advance to the next tier
Figure 1: Project Location Map.https://www.globenewswire.com/NewsRoom/AttachmentNg/0896239b-b0a1-483d-ab65-43940d8511dc
Lavra Velha is an advanced exploration project located on a 55,000-hectare land package in Brazil’s Bahia state
a mining-friendly jurisdiction that is also home to Yamana’s Jacobina mine
Lavra Velha is located about 300 kilometres from Jacobina and could share potential synergies with the mine operation
The generative exploration program has already identified inferred mineral resources at Lavra Velha of 3.93 million tonnes at 4.29 grams per tonne (“g/t”) of gold for 543,000 ounces of gold
which represents one-third of the 1.5 million ounces of inferred mineral resources being targeted by the Company under the generative exploration program
Exploration continues to generate and test new prospective areas within and around the Lavra Velha deposit with a focus on shallow oxide mineralization
Step out exploration has led to the further discovery and partial delineation of the Lavra Velha SW and Sul deposits
These areas consist of a series of structural zones defined over more than 900 metres of strike length
Shallow drilling in 2020 has yielded significant results from oxide mineralized zones
as represented by the following estimated true width intercepts: 5.80 metres at 2.35 g/t of gold (from hole FSW-018
starting at 56.20 metres down hole); 4.89 metres at 2.18 g/t of gold (hole FLV00161
starting at starting at 63.00 metres down hole); and 9.44 metres at 0.64 g/t of gold
including 0.84 metres at 2.84 g/t of gold (hole FSW-020
Historic drill intercepts of note from the Lavra Velha SW and Sul deposits include the following estimated true width intercepts: 4.90 metres at 3.95 g/t of gold (hole FLV-136
starting at 26.40 metres down hole); 11.21 metres at 3.63 g/t of gold
including 2.05 metres at 10.30 g/t of gold (hole FLV-146
starting at 98.13 metres down hole) and 12.67 metres at 1.94 g/t of gold (FLV-068
See Figure 2 for a project map and Table 1 for additional drill results
These results as well as other previously released results (see the Yamana press release issued February 20
available on the Company’s website at www.yamana.com) will be used to update the mineral resources
and are expected to add to the already identified oxide mineral resource
To the southeast of the Lavra Velha deposit
a similar geological setting has been explored in the Flanco Leste area
Recent geochemical results from surface rock sampling has defined a large
continuous anomalous zone along a 3.5 kilometre strike associated with alteration similar to that present at higher levels of the Lavra Velha deposit
Exploratory drilling has been initiated to test this area and will continue in early 2021
Metallurgical studies were initiated to determine the suitability of Lavra Velha mineralization for heap leach extraction
Bottle roll tests were executed at SGS laboratory (Belo Horizonte
Minas Gerais) with a total of 39 oxide samples tested
One kilogram splits of material with 100% passing six millimetres were analyzed by sampling at five fixed intervals of 2
The initial results show that the oxide mineralization may be suitable for gold recovery by heap leaching
with an average of 94.6% gold extraction in under 72 hours
Similar tests on sulphide bearing material showed recoveries that averaged 87% for mixed sulphide and oxide domains and 75% for sulphide only domains
Additional metallurgical studies are underway that will include larger-scale column tests and cyanide consumption analysis
Lavra Velha represents one of the best prospects in the generative exploration program
and Yamana believes there is excellent potential for the project to meet the Company’s three-year
1.5 million ounce inferred mineral resource target
Figure 2: Lavra Velha project map showing main mineralized sectors, rock sample results and 2020 and historic drilling highlights for Lavra Velha Sul and Lavra Velha SW, reported as Au (g/t) over estimated true widths.https://www.globenewswire.com/NewsRoom/AttachmentNg/c003f51f-fb0f-450c-838c-5e7e369ccdcc
Table 1: Lavra Velha 2020 and historic drilling highlights
Yamana continues to explore its 31,000-hectare Monument Bay project
The Twin Lakes deposit was originally being considered as an open pit operation but is now being re-evaluated as an underground project based on encouraging results from an internal study consisting of a stope optimization exercise within a revised deposit interpretation
The internal study indicates the presence of steeply plunging higher-grade shoots within the open pit resource that are potentially mineable in an underground scenario
mineralized shoots were extended up to a maximum depth of 700 metres to produce target shapes to guide the next phase of deposit drilling
While an underground project would reduce the overall mineral resource
which means the initial mineral resource could increase
an underground scenario would reduce the project footprint
mitigating the surface impact and lowering its overall environmental footprint
Encouraging drill results from the winter 2020 program include the following estimated true width intercepts: 14.86 metres at 3.32 g/t of gold
including 7.20 metres at 5.58 g/t of gold (TL-20-703); 7.46 metres at 6.68 g/t of gold (TL-20-712); 4.06 metres at 8.64 g/t of gold
including 3.07 metres at 10.73 g/t of gold (TL-20-715); and 4.64 metres at 5.29 g/t of gold (TL-20-702)
The results confirm the presence of higher grade and wide structures and zone extensions at shallow elevations not currently within the model
underscoring the potential within the deposit footprint both near surface and at depth
See Figure 3 for a long section of the Monument Bay Twin Lakes deposit and Table 2 for additional drill results
Drilling activity in 2020 was impacted by restrictions related to COVID-19
but the exploration program will now ramp up taking advantage of winter ice conditions
with rigorous COVID-19 precautionary measures in place and rapid testing available to protect local communities and project personnel
More drilling results are expected by the middle of 2021
In order to guide a 16,000-metre winter surface drilling program along the deposit trend
a series of three drill holes were completed during the recent fall program
Full results are pending but core logging confirms the presence of characteristic deposit mineralization and alteration features at depth
with preliminary associated anomalous gold values
Results will be reported along with the planned drill program in 2021
a reverse circulation drill till sampling program continued across the property
Till and top of bedrock results further support interest in an emerging target area southeast of the Twin Lakes deposit
Exploration on this target area is expected to resume in 2021
located in Brazil’s Bahia State contiguous to and north of the Jacobina mine property
comprises a total of 78,000 hectares of exploration concessions distributed along a 150-kilometre-long strike length extent of the Serra do Corrego formation
which hosts the paleoplacer gold mineralization of the Jacobina mine
which started in 2019 and continued in 2020
has defined mineralized conglomerate reefs along a trend that is more than 15-kilometres long
An exploratory drilling program was recently initiated covering several well defined mineralized sectors
while district exploration continues to explore for new mineralized sectors north of areas currently being drilled
Surface work at Jacobina Norte has defined three sectors
where gold-in-rock samples related to multiple
defined a 15-kilometre target area within a geological setting that is closely comparable to the paleoplacer gold mineralization found at the Jacobina mine
at least four distinct conglomerate layers have been defined
ranging from four to five metres in thickness and presenting numerous gold values above 1.0 g/t of gold
with assays ranging up to 5.8 g/t of gold in some areas
Drilling is continuing and will test widely spaced targets to rapidly define the highest priority areas for advancement
District exploration beyond the northern limits of the Angicos-Barrãcao area has identified several other areas of conglomerate hosting anomalous gold values in areas up to 40 kilometres north of Barracão Velho
See Figure 4 for a project map and main exploration targets as well as planned drilling
The results generated from the first-year program at Jacobina Norte show impressive exploration potential
with strong evidence of favourable geological features that make the Jacobina mine a multimillion ounce gold deposit
Figure 4: Jacobina Norte project and main explored sectors.https://www.globenewswire.com/NewsRoom/AttachmentNg/6057e6a8-5ef4-4ba9-b425-5f263cd55a95
The Borborema project is a 25,000-hectare land package located in Brazil’s Pernambuco state in a Proterozoic magmatic arc environment that is similar to the belt hosting the Chapada mine
a large copper-gold mine developed by Yamana and put into production in 2007
Recent generative exploration work at Borborema has led to the discovery of important
high-grade copper-gold-zinc massive sulphide mineralization that has produced notable drill intercepts in initial drilling and defined several other high potential targets on the property
The drilling program at São Francisco has successfully delineated a continuous 900-metre long copper-gold-zinc massive sulfide mineralized body that runs in an east-west direction
gently plunging to the east and enveloped by a large halo of lower-grade disseminated sulphide mineralization
Both the halo and massive sulphide mineralization remain open for expansion
Drilling results demonstrate that the São Francisco discovery is a significant polymetallic system with associated gold
as defined by the following recent core length intercepts (estimated to approximately equal true widths): 7.53 metres at 3.80% of copper
and 0.50% of zinc (starting at 76.80 metres downhole
and 0.70% of zinc (starting at 45.26 metres downhole
SF-09); and 5.65 metres at 1.83% of copper
and 0.53% of zinc (starting at 116.35 metres downhole
See Figure 5 and Table 3 for additional drill results
The district exploration has also identified seven new areas within the Borborema exploration concessions with large gold
gold-copper or copper soil and rock anomalies from surface sampling
expanding the São Francisco footprint and providing new areas for drill testing
The results demonstrate that São Francisco represents a significant
shallow copper-gold-zinc system defined by a continuous massive sulphide rich core enveloped by a wide zone of disseminated mineralization
which is completely open for expansion in all directions
The drilling program will continue to focus on expanding the known mineralized system
São Francisco mineralization represents only a minor portion of a large anomalous district
making Borborema a very attractive project in the Company’s exploration portfolio
Figure 5: Borborema property, São Francisco target 2020 drilling highlights and main district sector location. Drilling results reported as Cu (%), Au (g/t) and Zn (%) over core lengths.https://www.globenewswire.com/NewsRoom/AttachmentNg/b2b19b7f-1d36-49ab-95b2-02c3ddbaddd9
Table 3: Borborema 2020 drilling highlights for drill holes demonstrating grades greater than 5.0% Cu over core lengths greater than 0.5 metres
The Ivolandia project is comprised of a 67,500-hectare land package that is located in Brazil’s Goias state south of the Chapada mine
Geochemical stream and soil sampling on the exploration concessions has identified numerous large gold anomalies
and an initial drilling program has defined shallow
36 exploratory drill holes have defined a low-grade oxide mineral envelope over a 1.2 kilometre north-south extent
supported by the following recently drilled core length intercepts: 31.57 metres at 0.44 g/t of gold (from surface)
including 5.57 metres at 1.55 g/t of gold (IVO-018); 24.00 metres at 0.30 g/t of gold (from surface)
and 25.30 metres at 0.50 g/t of gold (starting at 52.00 metres down hole
See Figure 6 for a property map and drilling highlights
New sectors have also been defined through exploratory drilling
as indicated by the following low-grade core length intercepts: 15.00 metres at 0.33 g/t of gold (starting at 53.00 metres downhole)
and 1.00 metres at 3.03 g/t of gold (starting at 156.00 metres down hole
True widths are not interpreted at this time
exploration results have defined a number of gold targets for further drill testing
historical holes drilled by Yamana intercepted significant higher-grade shallow oxide mineralization as indicated by core length intercepts in holes GMOR-04 (21.71 metres a 4.75 g/t of gold
starting at 20.34 metres downhole) and GMOR-14 (13.00 metres at 0.63 g/t Au
confirming significant district scale potential for further discovery
Figure 6: Ivolandia project, Ivolandia Main target 2020 drilling highlights, property wide gold grain stream sediment counts and select historic exploratory drilling. Drilling results reported as Au (g/t) over core lengths.https://www.globenewswire.com/NewsRoom/AttachmentNg/d0023613-b35c-4be9-8e65-ac744c88139a
located near Oxford Lake in northeastern Manitoba
is a large 20,000-hectare property package consisting of two unexplored mineral exploration licences 100%-controlled by Yamana
and three smaller claims held under a joint venture agreement with Capella Minerals Ltd
The property is considered to be highly prospective for iron formation-hosted gold deposits and has returned a number of drill intercepts with significant gold grades from a limited area of drilling within the joint venture claims
The larger land package has magnetic anomalies and limited arsenic-in-till anomalies that indicate potential targets for further iron formation-hosted gold as well as shear zone type gold targets
Yamana entered into an Exploration Agreement with Bunibonibee Cree Nation to develop a cooperative and mutually beneficial relationship relating to mineral exploration within the Traditional Territory of Bunibonibee Cree Nation
Yamana is in the planning stages of a work program for the property
and pending conclusion of community consultation and permitting
exploration work is anticipated to begin in early 2021
Yamana controls a number of prospective land packages with evidence of mineralization on surface and limited or no drilling completed to date
These Tier Three projects represent important opportunities that the Company believes offer excellent exploration upside
providing an opportunity for organic growth of new advanced exploration projects over the next decade
Notable Tier Three projects include Cambista and Cambiazo in Chile
Yamana controls an extensive portfolio of exploration properties located within 100 kilometres of the El Peñón mine
Concessions totalling approximately 71,000 hectares are located in this Paleocene gold belt that hosts the El Peñón mine
which has produced over five million ounces of gold to date
The Company’s knowledge and exploration expertise of this environment are now being applied to exploration in the outlying concessions
Exploration has been successful in identifying several high potential sectors utilizing spectrometry-based alteration mapping
and the reinterpretation of geophysical data
Ongoing first pass exploratory drilling has intercepted significant areas of alteration and limited but encouraging evidence of gold mineralization
located in the northern section of the area being targeted
including 2.00 metres at 3.13 g/t of gold (hole CLGNRC05
Several others concessions within this well-endowed mineral belt that the Company believes demonstrate high potential for further discoveries are being advanced to drill testing stage
Figure 7: Cambista and Cambiazo property locations, El Peñón District, northern Chile.https://www.globenewswire.com/NewsRoom/AttachmentNg/bf259f8d-c3c4-478f-aa8d-d768388d439c
Colider is an early stage project located in Mato Grosso
which has been explored for porphyry copper and precious metals deposits by several junior and senior companies
The 9,700-hectare property is located on Proterozoic volcanic rocks of the Colider sequence
Initial exploration has identified areas of anomalous gold in soils and rocks
with values in individual soil samples reaching up 0.1 g/t of gold intermittently over up to 5.0 kilometres
Gold-in-rock anomalies are associated with well preserved epithermal vein and stockwork mineralization
Exploratory drilling is planned to test these targets in 2021
Figure 8: Colider project, Brazil. Geology and rock and soil gold geochemistry.https://www.globenewswire.com/NewsRoom/AttachmentNg/f34fc693-32b7-4578-83d4-e32280278029
a 416-hectare property located in the core of the Red Lake camp in Ontario
gold mineralization is present as intrusive-hosted vein and stockwork
low-grade intercepts and more restricted higher-grade mineralized intervals
A 2020 review of historic drilling produced an internal project evaluation that has generated renewed interest to further evaluate the project
Previous exploration has outlined gold zones in three separate areas
each of which is contiguous with gold zones on the adjacent Hasaga property owned by Premier Gold Mines Ltd
Further work will focus on developing an improved geologic model to evaluate near surface targets as well as the potential to develop higher-grade targets that are potentially amenable to underground mining
QP StatementScientific and technical information contained in this press release has been reviewed and approved by Henry Marsden (P
and a “Qualified Person” as defined by Canadian Securities Administrators' National Instrument 43-101 - Standards of Disclosure for Mineral Projects
Quality Assurance and Quality ControlYamana incorporates a Quality Assurance and Quality Control (“QA/QC”) program for all of its mines and exploration projects which conforms to industry best practices
Samples are transported in security sealed bags for preparation at certified laboratories (ALS
Gold is analyzed by gold fire assay with 30 grams or 50 grams aliquot and AAS finish
Samples over 5 g/t are re-analyzed by gravimetric finish methods
Silver is determined using a four acid digestion and AAS finish (ore level) and samples over 30g/t are re-analyzed by gravimetric finish methods
Copper reported in this release is analyzed by AAS using a four acid digestion
Five percent of all pulps are further checked by secondary certified laboratories (ALS
Bureau Veritas) using the same analytical methods
All exploration diamond drill cores are split in half by mechanical spitting or core sawing and sampled at appropriate intervals for assay The remaining core
coarse reject and pulps are stored on-site in a secure location
sterile and blanks are routinely inserted into the sample stream as a control for assay accuracy
The results of these checks are tracked and failures are re-analyzed
This information also includes pulp checks carried out in the secondary lab
is a Canadian-based precious metals producer with significant gold and silver production
and land positions throughout the Americas
Yamana plans to continue to build on this base through expansion and optimization initiatives at existing operating mines
the advancement of its exploration properties and
by targeting other consolidation opportunities with a primary focus in the Americas
FOR FURTHER INFORMATION, PLEASE CONTACT:Investor Relations 416-815-02201-888-809-0925Email: investor@yamana.com
Tavistock (UK Public Relations) Charles Vivian / Emily MossTelephone: +44 7977 297 903 / +44 778 855 4035Email: yamana@tavistock.co.uk
Peel Hunt LLP (Joint UK Corporate Broker)Ross Allister / David McKeown / Alexander AllenTelephone: +44 (0) 20 7418 8900
Berenberg (Joint UK Corporate Broker)Matthew Armitt / Jennifer Wyllie / Detlir Elezi Telephone: +44 (0) 20 3207 7800
and the Company’s Annual Report on Form 40-F filed with the United States Securities and Exchange Commission
Although the Company has attempted to identify important factors that could cause actual actions
events or results to differ materially from those described in forward-looking statements
there may be other factors that cause actions
There can be no assurance that forward-looking statements will prove to be accurate
as actual results and future events could differ materially from those anticipated in such statements
The Company undertakes no obligation to update forward-looking statements if circumstances or management’s estimates
The reader is cautioned not to place undue reliance on forward-looking statements
The forward-looking information contained herein is presented for the purpose of assisting investors in understanding the Company’s proposed generative exploration program and the short-term and longer-term goals and objectives thereof
as well as the Company’s expected sources of funding for the program and may not be appropriate for other purposes
Alternative theory proposes that the northeastern plain was formed around 30 million years ago
FABIO JR SM / WIKIMEDIAStretch of the Bodopitá Hills in Paraíba: basaltic magma trapped in the zone between the crust and the mantle of the Earth is the origin of the Borborema PlateauFABIO JR SM / WIKIMEDIA
Some studies attribute the origins of the Borborema Plateau or Borborema Hills to weather effects
Over millions of years bad weather is supposed to have molded the craggy relief of this region
formed by highlands that give a mountainous air to parts of the inland areas in Pernambuco
Other works attribute the origins of the plateau to geological processes that occurred in the Cretacean period
The separation of South America from Africa
which until then had formed a single block in the former super-continent known as Gondwana
according to the most widely accepted theory
caused the Earth’s crust to stretch in areas in Brazil’s Northeast region
The uppermost layer of the Earth became thinner in the region and one of the consequences of this stretching was the appearance of elevations in certain points
New work from geophysicists Walter Eugênio de Medeiros
from the Federal University of Rio Grande do Norte (UFRN)
from the Geological Survey of Brazil (CPRM)
which was different from the stretching caused by the separation of the continents
may also have played an important role in forming the northeastern plain
According to a paper by the two researchers to be published in August in the Journal of South American Earth Sciences
the raising of the Borborema Plateau may have been the consequence of magmatic activity and a deep thermal anomaly that initiated around 30 million years ago in that stretch of Brazil’s Northeast region
As it rose up from the depths to the surface of the globe
became trapped between the crust and the mantle
which are the outermost and intermediary layers of the Earth
The difference in density between magma and the neighboring rocks caused a vertical force
“This force deformed the crust and pushed the region up
thus giving rise to the Borborema Plateau,” says Oliveira
“We’re not saying that this was the only process that led to the formation of the plain
but we are saying that this mechanism may also be the root cause for the emergence of the Borborema Plateau ,” says Medeiros
The focus of the study are the so-called isostatic conditions of the Borborema Plateau
alterations in the gravitational equilibrium between two internal structures in the Earth: the lithosphere
a rigid part that includes the crust and the upper part of the mantle
Variations in this equilibrium produce modifications in the terrestrial relief and may give rise to mountains or depressions
The alteration may be caused by forces located on the surface or inside the planet
“The system functions like an elastic structure that flexes when loads are placed on it
but recovers its initial condition when they are removed,” is the comparison Oliveira makes
In the case of the Borborema Plateau the data from the two researchers suggest that these hills were formed by the rising of the crust because of the forces located immediately below the uppermost layer of the Earth
According to the interpretation of the geophysicist
measurements indicate that the forces at the base of the crust are greater than the weight of the topography formed
“Judging by the intense seismic activity in the region the process is apparently still active,” says Medeiros
the Borborema Plateau has still not reached isostatic equilibrium and as denudation of the rocks occurs the crust slowly returns to its initial condition in an elastic way
Data collected on trips to the hilly region of the Northeast support the thesis of the geophysicists
whose study forms part of the work sponsored by the Brazilian Geophysical Science and Technology of Oil Institute (INCT)
The two researchers measured the intensity of the gravitational field (gravimetry) at several points on the Borborema Plateau and also used information produced by other research centers
From this type of data it is possible to infer the density of the rocks and the thickness of the geological layers in a region
The researchers recorded some types of disturbance
such as the so-called positive geoid anomaly
which can be interpreted as an indication that the topmost geological layer is thicker there
“The crust is some four kilometers thicker under the plateau than outside this region,” says Oliveira
At certain points in the hills it is as thick as 35 km
From Campina Grande to Caruaru With an average altitude of 500 meters and high peaks that reach 1,200 meters
the Borborema Plateau is one of the most interesting and challenging natural formations for Brazilian geophysicists
Its domains include well-known cities like Campina Grande in Paraiba and Caruaru in Pernambuco
Its format is similar to an ellipse stretching in a north-south direction
reaching a maximum length of 470km and a width that varies between 70m and 330km
Next to the lowlands in the interior of the state
a plain with altitudes between 0 and 200 meters
located to the north of Brazil’s Northeast region
a more modest plain in the inland areas of the states of Pernambuco
the Borborema Plateau forms part of an enormous block of rocks that covers almost the whole of the Northeast of Brazil: the Borborema Province
tectonism and volcanism were two significant marks of this hilly region
and it is still today the scene of small earthquakes and faults that strengthen indications that the Borborema Province has a lithosphere that is different from the rest of the Brazilian shield,” comments Naomi Ussami
a geophysicist from the University of São Paulo
where the temperature of the mantle exceeds 13000 C
the lithosphere of Borborema must be thinner and hotter
“A large region inside the lithosphere that has a higher temperature reduces the density of the rocks
which tend to float and move to shallower depths
This may be an alternative mechanism for the uplift and erosion of parts of the Borborema Province,” ponders Naomi
Not all academics agree with the hypothesis formulated by Medeiros and Oliveira to explain the formation of the Borborema Plateau
have led to the formulation of theories that are different as to how these important northeastern hills have risen up
more along the lines that the origins of these hills are associated with the process of separation of South America from the African continent
Seismic refraction consists in generating explosions close to the surface in order to measure the propagation of shockwaves deep inside the Earth
When they move from one environment to another
the waves are partially reflected and refracted and change speed
As the geological layers of the earth have different densities
the speed varies at different points deep within the planet
it is possible to estimate where the border between the crust and the mantle is
a geophysicist at the University of Brasília
the analyses using the deep seismic refraction technique show that the birth of the Borborema Hills occurred in a different way from the one proposed by Medeiros and Oliveira
“Our idea is that the formation process of the plain was very simple,” says Soares
“There was delamination of the lithosphere
which led to the plain lifting up.” The process occurred in the Cenozoic Period as a consequence of the separation of the continents that started around 100 million years ago
the techniques used until today for studying this important geographical accident have still not brought about agreement as to the origins of the hills marking the interior of a part of the Northeast of Brazil
Scientific article OLIVEIRA, R.G. and MEDEIROS, W.E. Evidence of buried loads in the base of the crust of Borborema Plateau (NE Brazil) from Bouguer admittance estimates
© Revista Pesquisa FAPESP - All rights reserved
Solis Minerals (ASX:SLM) has identified 3 new lithium-bearing pegmatite drill targets
via mapping and rock chip sampling conducted at the Estrella prospect
within the Borborema Project in Brazil.
The $33.81 million market capitalisation company reports float and rock chip samples confirmed these pegmatite bodies are lithium bearing
with assay results returning up to 7.6% lithium oxide (Li2O)
Two additional drill rigs are being mobilised to explore the Borborema Project
The company has completed 12 holes to date from the drilling program at the Jaguar Project and 3 drillholes are at the laboratory and awaiting assays.
re-negotiations are also in place for an extension to its due diligence period at the Jaguar Lithium Project
initial drilling rates and progress have not been sufficient for Solis to test all available target areas over the 300 hectare lease area.
Solis says in order to adequately test all available targets
the company is negotiating an additional 6 months before committing to the binding option agreement currently in place
Solis Minerals Executive Director Matthew Boyes says: “The identification of 3 new lithium bearing outcropping pegmatites and rock chip samples returning up to 7.60% Li2O
The team is looking forward to completing the full geochemical soil program in the area
and then drilling the 3 outcropping pegmatite dykes.
We are currently re-negotiating an extension for our due diligence period on the Jaguar Project which will allow the necessary time to evaluate the asset more adequately and systematically.
With a large track mounted drill rig currently on its way to site
we will begin to see some tangible progress at Jaguar over the coming months
We are located in the right region at the right time as Brazil continues to grow into a leading
Both the Borborema and Jaguar projects are located in Brazil
which is rapidly developing into an ‘exciting’ and ‘globally significant high-grade’ lithium region
Solis Minerals is a Latin American battery mineral focused mining exploration company
The company owns a 100% interest in the Borborema Lithium Project in Brazil
It has recently executed an option to acquire 100% of the Jaguar Lithium project in Bahia state
Solis also holds a 100% interest in 32,000ha of combined licences and applications of highly prospective IOCG (iron oxide copper/gold) and porphyry copper projects in southwestern Peru within the country’s prolific coastal copper belt — a source of nearly half of Peru’s copper production
Write to Aaliyah Rogan at Mining.com.au
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Gold Mountain (ASX:GMN) has identified ‘high priority’ catchments for follow-up soil sampling to help define drill targets at its Custodia Project in the Borborema Province of Brazil
The $11.47 million market capitalisation company says a series of lithium anomalies oriented predominantly along structural strike and fringing onto previously soil sampled areas have been identified.
The Custodia Project consists of 6 tenements in an underexplored part of the Borborema Province not previously known for lithium bearing pegmatites
The Borborema Province also contains the productive Seridó and Solonópole lithium-caesium-tantalum (LCT) pegmatite fields
Gold Mountain is a mineral explorer with projects based in Brazil and Papua New Guinea considered ‘highly prospective’ for lithium
Gold Mountain had $1.812 million cash and cash equivalents at hand
Write to Adam Drought at Mining.com.au
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A 28-year-old Brazilian woman has miraculously survived after being accidentally shot in the mouth by her husband with a harpoon gun.
Elisangela Borborema Rosa's husband was cleaning his spear gun when it went off, firing a harpoon that hit her cervical spine.
Mrs Rosa, 28, was rushed to hospital and underwent emergency surgery to remove the blade after the incident in the coastal city of Arraial do Cabo.
Neurosurgeon Allan da Costa said the harpoon came within 1cm of killing her, but expects her to make a full recovery.
A police spokeswoman in Arrial do Cabo said officers were looking into the case.
"Everything indicates it was an accident, but we are investigating. We don't think the husband tried to kill her," she said.
"But once she fully recovers we will be able to question her and get a clearer picture of what happened."
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