• Data Access
  • Your Email  
  • Your Email  
Keep me signed in.
Forgot your password?
Close
  • Forgot Your Password?
  • Enter the email you signed up with and we'll email it to you.
  • Your Email  
Close
Back
MDO
Mining Data Solutions
  • Home
  • Database
  • Subscribe
  • Sign In
  • Sign In
Argentina
Taguas Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
293 km W from La Rioja, Argentina

  Project Contacts:
70 York Street Suite 1710
Toronto
Ontario, Canada
M5J 1S9
Phone  ...  Subscription required
Fax416-369-1402
EmailEmail
Additional Resources for Suppliers & Investors
Drill results over 30 g/t Au
Stay on top of recent discoveries.
Search drill results by commodity and grade.
Largest mines in the Americas
Mining and mill throughput capaciites.
Full profiles of select mines and projects.
Deepest underground mines
Shaft depth and mill throughput data.
Full profiles of select mines and projects.
Heavy mobile equipment
HME type, model, size and quantity.
Full profiles of select mines and projects.
Permitting and construction projects
Projects at the permitting or construction stage. Full profiles of select projects.
Mines with remote camps
Camp size, mine location and contacts.
Full profiles of select mines and projects.
Mines & projects in Argentina
A list of country's mines and projects.
Full profiles of select mines and projects.
  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Costs & Financials
  • Fleet
  • Personnel
  • Filings & News

Thank you for browsing through mine profiles compiled by the Mining Data Online team.

Would you like to subcribe or schedule a Demo?
  • Name:
     
  • Company:
     
  • Position:
     
  • Phone:
  • Email:
  • Message:

Overview

StagePreliminary Economic Assessment
Mine TypeOpen Pit
Commodities
  • Gold
  • Silver
Mining Method
  • Truck & Shovel / Loader
Processing
  • Heap leach
  • Carbon in column (CIC)
  • Carbon adsorption-desorption-recovery (ADR)
  • AARL elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)
Mine Life10 years (as of Jan 1, 2019)
Latest NewsOrvana Announces Taguas Mining Property Preliminary Economic Assessment Report     June 28, 2019


Owners

Source: p. 1
CompanyInterestOwnership
Orvana Minerals Corp. 0 % Indirect
Compania Minera Taguas S.A. 100 % Direct
On May 14, 2019, Orvana Minerals entered into a purchase agreement with Compañía Minera Taguas S.A. pursuant to which Orvana agreed to acquire Taguas, consisting of 15 mining concessions over an area of 3,273.87 ha. Closing of the acquisition of Taguas is subject to applicable local mining rights registrations and the final acceptance of the Toronto Stock Exchange. The process to complete the acquisition and registration of the Taguas property in Argentina has been delayed due to COVID-19 travel restrictions and national lockdown measures. The Company is not in a position to determine a timeline to complete the registration of the acquisition of the Taguas Project in Argentina until the COVID-19 restrictions are lifted.

Deposit Type

  • Epithermal
  • Vein / narrow vein


Summary:

Taguas consists of three gold-silver deposits:
• Leonor Vein at Cerro Silla Sur
• Campamento Vein at Cerro Campamento
• The oxide gold-silver mineralization at Cerros Taguas that is the focus of this PEA
report.

Cerro Silla Sur contains a northeast trending and steeply dipping (to the northwest) quartz-pyrite-enargite vein called Leonor. The central portion of the Leonor vein has returned grades of 7 to 42 g/t gold, up to 330 g/t silver and 0.1 to 5 % copper over drill intersections of less than 1 m to 7 m (Hedenquist, 2012). The mineralogical characteristics of the Leonor Vein are consistent with it being of the intermediatesulfidation type as evidenced by increasing amounts of chalcopyrite relative to enargite. Such intermediate-sulfidation veins typify the peripheral portions of high-sulfidation systems, and the elevated zinc and lead contents of Leonor lend support for cooler conditions of formation (Sillitoe, 2011).

The mineralogical characteristics of the Campamento Vein are more consistent with it being of the high-sulfidation type as evidenced by the predominance of enargite over chalcopyrite. The Campamento vein has returned drill intersections 1-3m wide with 5- 35 g/t gold over a vertical interval of at least 100m (Hedenquist, 2012). The uppermost 100 meters of the Campamento vein usually contain only a few percent pyrite and enargite but often contain bonanza grade gold. Sillitoe (2011) proposed that the sulfide deficiency is a hypogene feature, and not the result of supergene oxidation. However, other geologists (e.g. Stewart, 2008; Kowalik, 2015 and 2017) believe that the sulfide and thereby copper deficiency but gold enrichment in the upper parts of the Campamento vein are due to supergene oxidation effects, depleting mobile copper and enriching less mobile gold. If so, the supergene zone should be transitional downwards into veins of massive sulfides, predominantly enargite with lesser pyrite. According to Hedenquist (2012), the amount of enargite in the Campamento vein does increase markedly with depth.

The mineralization in the upper 100 m to 200 m at Cerros Taguas, however, is markedly different from the mineralization at Campamento and Leonor. The mineralization at Cerros Taguas is not a single large vein like is mostly Leonor and Campamento but the product of very numerous small veins. Hedenquist (2012) proposed that Cerros Taguas may be a hydrothermal breccia bordering a felsic flow-dome intrusive. However, the purported intrusive flow dome contains rounded quartz eyes which may be more indicative of a tuff.

The mineralization at the Cerro Taguas Norte, Cerro Taguas Sur, Cerro III and Cerro IV deposits is interpreted to be typical of high-sulfidation epithermal gold mineralization that has undergone supergene oxidation during acid sulfate alteration.

Mineralization at Taguas has the following characteristics that are consistent with the supergene-oxidized high-sulfidation deposit model:

• Near surface emplacement, hosted within Cenozoic aged volcanic units;
• Strong advanced argillic quartz-alunite alteration and saline fluid inclusions with high homogenization temperatures which indicates an acidic, magmatic fluid source
• Gold-silver mineralization in quartz-sulfide veins hosted in volcanic rocks and volcanic breccias
• The presence of jasperoids and clearly visible Fe-oxides at surface identify the
supergene oxide zone.


Mining Methods

  • Truck & Shovel / Loader


Summary:

The mining method proposed for the Taguas Project is conventional truck and shovel open pit mining. Open pit mining was selected because of the near-surface nature of mineralization, the value of the mineralization and the anticipated mining selectivity of mineralized material during the operation.

Whittle software was used to optimize the final pit shell and select phases for the life of mine production plan. The PEA mine design criteria are:

• Approximately 9 Mt/a mining capacity with a plant capacity of 4.2 Mt/a or nominally 12 kt/d
• Metal prices of US$1,300/oz and US$17/oz
• Metallurgical recovery of 87% Au and 52% Ag.

The PEA life of mine (LOM) is ten years during which 38.4 Mt of waste and 37.8 Mt of mineralized material with an average grade of 0.39 g/t Au and 14.5 g/t Ag will be mined.

Production will be achieved with an Atlas Copco ROC D55 drill, up to three Caterpillar 374F loaders and a fleet of up to 21 Volvo FMX 8x4 haul trucks. A fleet of secondary equipment including D6 and D8 dozers, graders and water trucks will be used to support mine production.

It is assumed that a local mining contractor will be used over the life of mine. Operating costs are estimated to vary between US$2.00/t for mineralized material and waste during periods with relatively short haulage distances and US$2.42/t at the end of the life of mine when haulage distances are longer.


Crushing and Grinding
Crusher / Mill TypeModelSizePowerQuantity
Cone crusher 1000 kW 1

Summary:

Mineralized material from the mine will be delivered by truck to a primary crusher feed hopper. This is discharged by a belt feeder delivering to a vibrating sizing screen that separates oversize mineralized material coarser than 50 mm to feed a cone crusher. The crusher discharge and undersize of the vibrating screen are combined on a collection conveyor belt delivering to a crushed mineralized material storage bin. The crushed mineralized material bin will be discharged by a belt feeder delivering to an agglomerating drum.

Mineralized material preparation consists of open circuit cone crushing at a nominal feed rate of 750 t/h to -12.5 mm (quarter inch) to a run-of-min (ROM) bin with a live capacity of 200t. The circuit will have a utilization of 67%.


Processing

  • Heap leach
  • Carbon in column (CIC)
  • Carbon adsorption-desorption-recovery (ADR)
  • AARL elution
  • Solvent Extraction & Electrowinning
  • Cyanide (reagent)

Flow Sheet: Subscription required

Summary:

The recovery process will be based on crushing and agglomeration at a rate of 12,000 t/d, stacking in 6 m lifts on a permanent heap leach. Followed by gold and silver recovery from the heap leach pregnant solution in a carbon adsorption–desorption–recovery (ADR) plant, and electrowinning, to produce doré gold bars.

Mineralized material from the mine will be delivered by truck to a primary crusher feed hopper. This is discharged by a belt feeder delivering to a vibrating sizing screen that separates oversize mineralized material coarser than 50 mm to feed a cone crusher. The crusher discharge and undersize of the vibrating screen are combined on a collection conveyor belt delivering to a crushed mineralized material storage bin. The crushed mineralized material bin will be discharged by a belt feeder delivering to an agglomerating drum.

Lime and binder, dosed separately, will be added to the agglomerating drum with crushed mineralized material and barren leach solu ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Gold Recovery Rate, %  ......  Subscription required
Gold Head Grade, g/t 0.39
Silver Recovery Rate, %  ......  Subscription required
Silver Head Grade, g/t 14.5
Subscription required - Subscription is required.

Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Gold Payable metal koz 41410
Gold Metal in doré koz 412
Silver Payable metal koz  ......  Subscription required  ......  Subscription required
Silver Metal in doré koz  ......  Subscription required
Gold Equivalent Payable metal koz  ......  Subscription required

Operational Metrics:

Metrics
Stripping / waste ratio  ......  Subscription required
Daily ore mining rate  ......  Subscription required
Annual mining capacity  ......  Subscription required
Waste tonnes, LOM  ......  Subscription required
Ore tonnes mined, LOM  ......  Subscription required
Total tonnes mined, LOM  ......  Subscription required
Plant annual capacity  ......  Subscription required
Annual production capacity  ......  Subscription required
Daily processing capacity  ......  Subscription required
Tonnes processed, LOM  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

Reserves at May 14, 2019:

CategoryTonnage CommodityGradeContained Metal
Inferred 38.6 Mt Gold Equivalent 0.51 g/t
Inferred 38.6 Mt Gold 0.4 g/t 494 koz
Inferred 38.6 Mt Silver 14.6 g/t 18,110 koz

Commodity Production Costs:

CommodityUnitsAverage
Credits (by-product) Gold USD  ......  Subscription required *
Cash costs Gold USD  ......  Subscription required *
Cash costs Gold USD  ......  Subscription required *†
All-in sustaining costs (AISC) Gold USD  ......  Subscription required *†
Assumed price Silver USD  ......  Subscription required *
Assumed price Gold USD  ......  Subscription required *
* According to 2019 study / presentation.
† Net of By-Product.
Subscription required - Subscription is required.

Operating Costs:

Units2019
OP mining costs ($/t mined) USD 2.1 *
Processing costs ($/t milled) USD  ......  Subscription required
G&A ($/t milled) USD  ......  Subscription required
* According to 2019 study.
Subscription required - Subscription is required.

2019 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Sustaining CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Total CapEx $M USD  ......  Subscription required
OP OpEx $M USD  ......  Subscription required
Processing OpEx $M USD 210
G&A costs $M USD 35.5
Total OpEx $M USD  ......  Subscription required
Total Taxes $M USD  ......  Subscription required
Royalty payments $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net Operating Income (LOM) $M USD  ......  Subscription required
Pre-tax Cash Flow (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 10% $M USD  ......  Subscription required
After-tax NPV @ 8% $M USD  ......  Subscription required
Pre-tax IRR, %  ......  Subscription required
After-tax IRR, %  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of May 14, 2019:
HME TypeModelSizeQuantityLeased or
Contractor
Dozer (crawler) ....................... Subscription required 2 Leased
....................... Subscription required ....................... Subscription required 1 Leased
....................... Subscription required ....................... Subscription required 1 Leased
....................... Subscription required ....................... Subscription required 1 Leased
....................... Subscription required ....................... Subscription required 3 Leased
....................... Subscription required ....................... Subscription required 3 Leased
....................... Subscription required ....................... Subscription required 21 Leased
....................... Subscription required ....................... Subscription required 3 Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Jun 27, 2019
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2020
................................... Subscription required 2019
Subscription required - Subscription is required.

News:

NewsDate
Orvana Announces Taguas Mining Property Preliminary Economic Assessment Report June 28, 2019

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2020 MDO Data Online Inc.