• 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
Vazante Mine

This page is not tailored to
devices with screen width under 750 px.
 Location:
9 km NE from Vazante, Brazil

  Address:
Rodovia LMG-706 - KM 65
Vazante
Brazil
38780-9000
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

StageProduction
Mine TypeUnderground
Commodities
  • Zinc
  • Lead
  • Silver
Mining Method
  • Sub-level open stoping (SLOS)
  • Longhole stoping
  • Vertical Crater Retreat
  • Dry waste backfill
Production Start...
Mine Life2032
The Vazante Operation consists of two mechanized underground mines, the Vazante Mine and Extremo Norte Mine. There are former open pits along portions of the strike of the Vazante deposit.


Owners

Source: p. 40, 208
CompanyInterestOwnership
Nexa Resources S.A. 100 % Indirect
Nexa Recursos Minerais S.A. (previously known as Votorantim Metais Zinco S.A.), which is wholly owned by Nexa Resources S.A., owns 100.0% of the Vazante project.

Contractors

Subscription required - Subscription is required.


Deposit Type

  • Hydrothermal
  • Carbonate hosted
  • Vein / narrow vein


Summary:

The geology of the Vazante Operation area consists of a sequence of pelitic carbonate rocks belonging to the Serra de Garrote and Serra do Poço Verde formations of the Vazante Group. The currently known mineralization has been traced along a strike length of approximately 10.5 km, extending from the southern end of the Vazante Mine to the northern limits of the Extremo Norte Mine.

MINERALIZATION
The zinc-lead-silver mineralization at the Vazante Operation is hosted by the Vazante Shear Zone which has been traced by drilling and sampling along a strike length of approximately 12 km. The Vazante Shear Zone has a general strike of azimuth 50° and dips approximately 60° to the northwest at surface. The hanging wall lithologies of the Vazante Shear Zone are comprised of dolostone and sericitic phyllite, slates and marl units of the Serra do Poço Verde Formation while the footwall lithologies to the Vazante Shear Zone are dominated by dark grey dolostones of the Upper Morro do Pinheiro Member. Drilling information indicates that the dip of the zinc mineralized zone gradually decreases with depth in the southern portions of the structure.

The zinc mineralization at the Vazante and Extremo Norte mines is composed largely of hypogene zones that are composed mainly of willemite (Zn2SiO4) veins, veinlets, and stockworks that are hosted by sphalerite-rich carbonate. The mineralization typically contains willemite (50% to 70%), dolomite (10% to 30%), siderite ........


Mining Methods

  • Sub-level open stoping (SLOS)
  • Longhole stoping
  • Vertical Crater Retreat
  • Dry waste backfill


Summary:

MINE DESIGN
The Vazante Operation consists of two mechanized underground mines, the Vazante Mine and Extremo Norte Mine, currently operating at a rate of approximately 1.5 Mtpa. The mineralized zones dip between 45° and 70° and the mine extends over a strike length of five kilometres. With the addition of the North Extension, this will increase to approximately 10 km. The Vazante Mine currently extends over a vertical depth of 300 m from surface to the 326 level. The Vazante Mine is being deepened by 186 m to the planned 140 level. There are former open pits along portions of the strike of the Vazante deposit.

There are two access ramps to the Vazante Mine and one to the Extremo Norte Mine. Mine headings range from 5.0 m high by 4.5 m wide ore drives to 6.0 m high by 5.0 m wide main ramps.

The Vazante Operation is designed based upon mechanized longitudinal longhole stoping for areas with a dip greater than 45°. Longhole stopes are developed with footwall access drives parallel to the orebody. Crosscuts are driven from the footwall drive and then the ore is developed along strike. Sublevels are typically 30 m apart though the distance varies depending on the orebody. Long holes are often a combination of downholes or vertical retreat mining (VRM) and uppers or sublevel longhole open stopes (SLOS). Both longhole methods employ a retreat sequence along strike. The SLOS stopes are not backfilled whereas the VRM stopes are backfilled.

Backf ........


Crushing and Grinding
Source: Subscription required

- subscription is required.


Processing

Flow Sheet: Subscription required

Summary:

- subscription is required.


Production:

CommodityProductUnits2022202120202019201820172016
Zinc Metal in concentrate t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required140,842135,379135,509
Lead Metal in concentrate t  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Silver Metal in lead concentrate oz  ......  Subscription required ^  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Equivalent Metal in concentrate t  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required
Zinc Concentrate kt 357349344
Lead Concentrate kt  ......  Subscription required  ......  Subscription required  ......  Subscription required
^ Guidance / Forecast.
Subscription required - Subscription is required.

Operational Metrics:

Metrics202120202019201820172016
Tonnes processed  ......  Subscription required  ......  Subscription required1,407,199 t1,374,380 t1,321,240 t1,381,301 t
Daily processing capacity  ......  Subscription required  ......  Subscription required4,100 t4,100 t4,100 t
Annual processing capacity  ......  Subscription required  ......  Subscription required
Subscription required - Subscription is required.

Reserves at December 31, 2021:
Mineral Reserves are estimated at a cut-off grade of 4% Zn. Mineral Reserves are estimated using average LOM metal prices of Zn: US2,722.20/t (US$1.23/lb), Pb: US$1,997.21/t (US$0.91/lb) and US$19.68/oz Ag.

Mineral Resources are estimated at various NSR cut-off values appropriate to the mineralization style and mining method. For Supergene Mineralization (Calamine) the resources are estimated at a NSR cut-off value of US$20.33/t for soil and US$22.18/t for fresh rock and transition material. For Aroeira Tailings the resources are estimated ate a NSR cut-off value of US$20.62/t and for Hypogene Mineralization (Willeminte) a cut-off value of US$ 52.95/t for all resources shapes. Forecast long-term metal prices used for the NSR calculation are: Zn: US$3,130.52/t (US$1.42/lb), Pb: US$2,296.79/t (US$1.04/lb); and Ag: US$22.63/oz.

CategoryTonnage CommodityGradeContained Metal
Proven & Probable 15.91 Mt Zinc 8.77 % 1,395 kt
Proven & Probable 15.91 Mt Lead 0.22 % 35.3 kt
Proven & Probable 15.91 Mt Silver 13.7 g/t 6,992 koz
Measured & Indicated 5.28 Mt Zinc 4.69 % 247.6 kt
Measured & Indicated 5.28 Mt Lead 0.09 % 4.9 kt
Measured & Indicated 5.28 Mt Silver 4.7 g/t 777 koz
Inferred 15.44 Mt Zinc 7.72 % 1,192 kt
Inferred 15.44 Mt Lead 0.19 % 30 kt
Inferred 15.44 Mt Silver 11.2 g/t 5,395 koz

Commodity Production Costs:

CommodityUnits202220212020201920182017
Cash costs (sold) Zinc USD  ......  Subscription required ^†  ......  Subscription required†  ......  Subscription required†  ......  Subscription required† 0.38 / lb†   0.44 / lb†  
^ Guidance / Forecast.
† Net of By-Product.
Subscription required - Subscription is required.

Financials:

Units202120202019201820172016
Sustaining costs M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 42.4   21.3   8.9  
Capital expenditures M USD  ......  Subscription required  ......  Subscription required  ......  Subscription required 89.9   55.3   34.2  
Subscription required - Subscription is required



Heavy Mobile Equipment as of December 31, 2020:
HME TypeModelSizeQuantity
Bolter ....................... Subscription required
Cable bolter ....................... Subscription required ....................... Subscription required
Drill (long hole) ....................... Subscription required ....................... Subscription required
Grader ....................... Subscription required ....................... Subscription required
Jumbo ....................... Subscription required ....................... Subscription required
Load-Haul-Dump (LHD) ....................... Subscription required 12.5 t ....................... Subscription required
Raise boring rig ....................... Subscription required ....................... Subscription required
Scaler ....................... Subscription required ....................... Subscription required
Scissor Lift ....................... Subscription required ....................... Subscription required
Shotcreter ....................... Subscription required ....................... Subscription required
Trans Mixer ....................... Subscription required ....................... Subscription required
Truck (haul) ....................... Subscription required 30 t ....................... Subscription required
Truck (service) ....................... Subscription required ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
....................... Subscription required ....................... Subscription required Subscription required May 12, 2022
Subscription required - Subscription is required.

Staff:

EmployeesContractorsTotal WorkforceYear
Subscription required Subscription required Subscription required 2020

Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2019
Annual Report 2018
Form 20-F 2018
Form 20-F 2017
Other 2017
Technical Report 2017
Annual Report 2016
Project Description 2014
Project Description 2013
Other 2006
Subscription required - Subscription is required.

Subscription required - Subscription is required.

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