• 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
Brazil
Volta Grande Project

This page is not tailored to
devices with screen width under 750 px.
 Location:
54 km SE from Altamira, Brazil

  Project Contacts:
Rua Dragão do Mar, 1025
Altamira
Brazil
Phone  ...  Subscription required
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 Brazil
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

StagePermitting
Mine TypeOpen Pit
Commodities
  • Gold
Mining Method
  • Truck & Shovel / Loader
Mine Life17 years (as of Jan 1, 2015)
Belo Sun is progressing the Volta Grande Gold Projec (PVG) towards construction and has successfully completed its EIA, its LP, its LI, conducted basic engineering, and recently completed its required ECI (Indigenous Study).


Owners

Source: p. 10
CompanyInterestOwnership
Belo Sun Mining Corp. 100 % Indirect
The company owns 100% interest in the Volta Grande Gold project through its wholly owned subsidiary, Belo Sun Mineração Ltda.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Hydrothermal
  • Saprolite
  • Vein / narrow vein


Summary:

The Volta Grande gold project contains two target areas named the North and South blocks; the former contains four large mineralized areas: (1) the Ouro Verde area in the northwestern part of the North Block, (2) the Grota Seca area, (3) the Junction area that connects Grota Seca and Ouro Verde and (4) the Greia area north of Grota Seca. The South Block comprises three target areas: (1) Pequi in the northern part of the South Block, (2) Grande in the southern part of the South Block, and (3) Itatá in the southeastern part of the South Block. The North Block as well as the South Block include old and new garimpeiros workings.

In the central part of the North Block, a north-northwest–trending lineament separates the southeastern mineralized zones of the Grota Seca from the northwestern zones at Ouro Verde and coincides largely with the Junction area. This lineament is parallel to other regional lineaments with similar orientation.

There is a complicated contact relationship between auriferous bedrock and the overlying saprolitic material. At Grota Seca, near recent garimpeiros workings, almost fresh diorite is in sharp contact with saprolitic material, which is at least 8 metres thick. This juxtaposition indicates that the saprolite is not made up of regular regolithic material developed on top of bedrock, but is transported by faulting parallel to the major shear zone that hosts the gold mineralization.

There are a number of north-northwest–tr ........


Mining Methods

  • Truck & Shovel / Loader


Summary:

The open pit mine includes two separate pits - Ouro Verde and Grota Seca. They are designed to be mined with proven technology and equipment.

The saprolite overlain on the deposits requires no drilling and blasting. This saprolite has more of a sandy texture than clay. Mining of this material will be with the front end loaders initially. As the shovels are erected, they will be tasked with mining the lower portion of the saprolite near the weathered contact where underfoot conditions will be more stable.

Suspended dump bodies have been included in the specification and costing of the haulage trucks. The suspended dump bodies are designed to reduce carry back of the saprolite material and also increased life from increased abrasion resistance with their rubber beds hauling the rock, both waste and ore.

The rock beneath the saprolite will be drilled with 200 mm down the hole (DTH) drills with a 10 m bench. Benches will be prepared with the track dozers and rubber tired dozer. The drill will then drill on the pattern size as specified by engineering for either waste or ore. That determination will be made based on the results of the grade control drilling completed with the RC drills. The grade control drilling will be in ahead of the bench mining to allow up to 18 months of advance information on the contacts.

The Study mine schedule is based on the mining of 4 phases in Ouro Verde and 6 phases in Grota Seca. A quarry is opened ini ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Projected Production:

CommodityProductUnitsAvg. AnnualLOM
Gold Payable metal koz 3,524
Gold Metal in doré koz 2053,527

Operational Metrics:

Metrics
Daily milling rate 20,000 t *
Stripping / waste ratio 4.3 *
Daily ore mining rate 20,000 t *
Waste tonnes, LOM 503,824 kt *
Ore tonnes mined, LOM 117,943 kt *
Total tonnes mined, LOM 667,955 kt *
Tonnes milled, LOM 115,969 kt *
Annual milling capacity 7 Mt *
* According to 2015 study.

Reserves at March 16, 2015:
Open pit mineral resources are reported at a cut-off grade of 0.4 g/t Au. The cut-off grades are based on a gold price of $1,400/oz and metallurgical recoveries of 94% for saprolite and 94% for unweathered material.

CategoryTonnage CommodityGradeContained Metal
Proven 41,757 kt Gold 1.07 g/t 1,442 koz
Probable 74,212 kt Gold 0.98 g/t 2,346 koz
Proven & Probable 115,969 kt Gold 1.02 g/t 3,788 koz
Measured 44,075 kt Gold 1.07 g/t 1,512 koz
Indicated 112,518 kt Gold 0.95 g/t 3,444 koz
Measured & Indicated 156,593 kt Gold 0.98 g/t 4,956 koz
Inferred 39,767 kt Gold 0.9 g/t 1,151 koz

Commodity Production Costs:

CommodityUnitsAverage
Cash costs Gold USD 618 / oz *  
Total cash costs Gold USD 707 / oz *  
All-in sustaining costs (AISC) Gold USD 779 / oz *  
Assumed price Gold USD 1,200 / oz *  
* According to 2015 study / presentation.

Operating Costs:

Units2015
OP mining costs ($/t mined) USD 10.6 *
Processing costs ($/t milled) USD  ......  Subscription required
Total operating costs ($/t milled) USD  ......  Subscription required
* According to 2015 study.
Subscription required - Subscription is required.

2015 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
Processing OpEx $M USD 841
Net revenue (LOM) $M USD  ......  Subscription required
After-tax Cash Flow (LOM) $M USD  ......  Subscription required
Pre-tax NPV @ 5% $M USD  ......  Subscription required
After-tax NPV @ 5% $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 March 30, 2015:
HME TypeSizeQuantityLeased or
Contractor
Backhoe 350 kW ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
....................... Subscription required ....................... Subscription required ....................... Subscription required Leased
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2015
....................... Subscription required ....................... Subscription required Subscription required Mar 30, 2015
....................... Subscription required ....................... Subscription required Subscription required Oct 12, 2022
....................... Subscription required ....................... Subscription required Subscription required Oct 12, 2022
Subscription required - Subscription is required.

Staff:

Total WorkforceYear
Subscription required 2015

Corporate Filings & Presentations:

DocumentYear
Management Discussion & Analysis 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2019
Feasibility Study Report 2015
Feasibility Study Report 2015
Subscription required - Subscription is required.

Subscription required - Subscription is required.

Terms of Use Privacy Policy © 2017-2023 MDO Data Online Inc.