• 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
Colombia
La Mina Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
4 km SW from Venecia, Colombia

  Project Contacts:
1830-1030 West Georgia Street
Vancouver
British Columbia, Canada
V6E 2Y3
Phone  ...  Subscription required
Fax(604) 682-3591
EmailEmail
WebsiteWeb
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 Colombia
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
  • 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
  • Copper
  • Gold Equivalent
Mining Method
  • Truck & Shovel / Loader
Processing
  • Flotation
Mine Life10 years (as of Jan 1, 2013)
Latest NewsGoldMining Announces Positive Preliminary Economic Assessment for La Mina Project     January 12, 2022


Owners

 
CompanyInterestOwnership
GoldMining Inc. 100 % Indirect

Deposit Type

  • Porphyry


Summary:

Middle Zone and La Cantera constitute two of the four drill-tested mineralized porphyry intrusive and breccia bodies on the La Mina property. In both deposits, the intrusive centers are occupied by a series of porphyry stocks and related breccias that together make up porphyry copper gold deposits. In the case of La Cantera, the core of the deposit consists of a late, barren porphyritic stock resulting in a typical “doughnut” pattern (plan view) in its concentric relationship to the surrounding mineralized units. In the case of Middle Zone, the barren core is an amorphous feature that appears to have intruded preferentially along pre-existing planes of weakness. Various intrusive/breccias phases were involved in development of the porphyry deposits alongwith multi-phase alteration mineralization events, as most-often expressed by pronounced densities of veinlets cross-cutting the diamond drill core. Hydrothermal magnetite is an important gangue mineral associated with gold and copper, and potassic alteration is an important alteration type associated with higher gold and copper grades.

The La Cantera Deposit is slightly elliptical in plan view (long axis NW-SE), measuring approximately 200 m by 190 m in plan view on surface with a depth extent of 350-600 m based on the results from 24 drill holes. Average grades are close to 0.8g/t Au with 0.3% Cu. The Middle Zone Deposit lies approximately 400 m north of La Cantera, and consists of a more pronounced elliptical body in plan view (long axis NE-SW), which remains open at depths of over 600 m, based on the results of 39 drill holes for a total of 14,159 meters. Fault displacement appears to have offset the western and eastern lobes of mineralization, and faulting appears to bound the western edge. Mineralization here is of two types. The first is high copper-gold ratio, similar to what is seen at La Cantera. The second is high gold with relatively low copper. Overall, the grades are lower than La Cantera, close to 0.5g/t Au with 0.1-0.2% Cu, over true widths of up to 100 m.


Mining Methods

  • Truck & Shovel / Loader


Summary:

MMC recommends that conventional truck and shovel open pit mining methods be used in order to best exploit the resources at the La Mina Project. This approach is well suited for these near surface, disseminated deposits. Mine schedules in Section 14 have been developed based on Inferred resources.

Open pit mining will take place two distinct areas: La Cantera and Middle Zone. La Cantera consists of a single pit mined in three phases. Middle zone consists of a single phase pit. The pit and phase outlines are shown in. Dilution was assumed to be included in the model blocks, given the size of the blocks relative to mineralized zones and loading equipment. Mining would take place on 10m benches using haul roads with maximum 10% grades for access.


Crushing and Grinding


Processing

  • Flotation

Source: Subscription required

Summary:

A conventional jaw crusher facility will be designed to crush run-of-mine (ROM) material to reduce the incoming feed material from the open pit mine at a total average feed rate of 650 t/h.

The major equipment and facilities in this area includes:

-Stationary grizzly,
-ROM surge bin,
-Vibrating grizzly,
-Jaw crusher,
-Secondary feed stockpile,
-Belt feeders,
-Conveyor belts, metal detectors, self-cleaning magnets and belt tear detectors,
-Belt scale,
-Dust collection system.

Haul trucks from the mine will dump ROM material onto a ROM surge stockpile. Material will be fed by a front-end loader dumping feed material into the 60-tonne capacity ROM surge bin. The surge bin will be equipped with a stationary grizzly with 600 mm × 600 mm square apertures to prevent oversize rocks from entering the circuit. A rock breaker will be available to break up any rocks larger than 600 mm which cannot pass through the stationar ........

Recoveries & Grades:

CommodityParameterAvg. LOM
Gold Recovery Rate, % 90
Gold Head Grade, g/t 2.06
Silver Recovery Rate, % 30
Silver Head Grade, g/t 0.87
Copper Recovery Rate, % 88
Copper Head Grade, % 0.32

Projected Production:

CommodityUnitsAvg. AnnualLOM
Gold oz 93,409907,400
Silver oz  ......  Subscription required  ......  Subscription required
Copper lbs  ......  Subscription required  ......  Subscription required
All production numbers are expressed as metal in concentrate.

Operational Metrics:

Metrics
Stripping / waste ratio 5.6 *
Daily mining capacity 81,250 t *
Waste tonnes, LOM 239.8 Mt *
Ore tonnes mined, LOM 42.5 Mt *
Total tonnes mined, LOM 282.3 Mt *
Plant annual capacity 4.6 Mt *
Daily processing capacity 12,500 t *
* According to 2013 study.

Reserves at December 31, 2016:

CategoryTonnage CommodityGradeContained Metal
Indicated 28,170 Mt Gold 0.74 g/t 666,761 oz
Indicated 28,170 Mt Silver 1.77 g/t 1,606,962 oz
Indicated 28,170 Mt Copper 0.24 % 150,242 k lbs
Indicated 28,170 Mt Gold Equivalent 1.12 g/t 1,013,185 oz
Inferred 12,394 Mt Gold 0.65 g/t 259,626 oz
Inferred 12,394 Mt Silver 1.75 g/t 696,520 oz
Inferred 12,394 Mt Copper 0.27 % 73,294 k lbs
Inferred 12,394 Mt Gold Equivalent 1.07 g/t 427,408 oz

2013 Study Costs and Valuation Metrics :

MetricsUnitsLOM Total
Initial CapEx $M USD  ......  Subscription required
Closure costs $M USD  ......  Subscription required
Income Taxes $M USD  ......  Subscription required
Gross revenue (LOM) $M USD  ......  Subscription required
Net revenue (LOM) $M USD  ......  Subscription required
EBITDA (LOM) $M USD  ......  Subscription required
Net Income (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
Pre-tax NPV @ 10% $M USD  ......  Subscription required
Pre-tax NPV @ 8% $M USD  ......  Subscription required
After-tax NPV @ 5% $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
Pre-tax payback period, years  ......  Subscription required
After-tax payback period, years  ......  Subscription required
Subscription required - Subscription is required.

Proposed Heavy Mobile Equipment as of December 31, 2013:
HME TypeSizeQuantity
Bulldozer 140 kW ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
....................... Subscription required ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
Preliminary Economic Assessment 2022
Press Release 2016
Preliminary Economic Assessment 2013
Subscription required - Subscription is required.

News:

NewsDate
GoldMining Announces Positive Preliminary Economic Assessment for La Mina Project January 12, 2022
GoldMining Reports New Mineral Resource Estimates for Titiribi and La Mina Projects, Colombia July 12, 2021

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2022 MDO Data Online Inc.