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India
Karnataka Mine

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 Location:
20 km W from Chitradurga, India

  Address:
Meghalahalli complex
Chitradurga
India
577 520
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Production Start...
Mine Life10 years (as of Jan 1, 2022)


Owners

Source:
CompanyInterestOwnership
Vedanta Resources plc. 69.7 % Indirect
Ownership Tree
Vedanta Resources Limited is the parent company of the Vedanta Group. Through its subsidiaries, it holds its principal operating businesses such as Vedanta Limited and KCM.
Iron ore Division of Vedanta Limited, comprising of Iron ore mines in Goa and Karnataka in India.

Contractors

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Deposit Type

  • Laterite


Summary:

The geological formation of this region belongs to the Archean-Proterozoic age. The geology of the A. Narrain mine consists of Archean formations locally termed “Dharwars” which contain rich and large iron ore deposits. The leasehold area forms part of the Chitradurga- Tumkur schist belt and part of a regional isoclinal fold. The strike direction of the ore body dips westerly at an angle of about 60 degrees to 70 degrees. Hematite is the principal ore mineral and limonite, goethite and magnetite constitute the associated minor minerals of the mine. The mineralized horizon extends over a length of about two km. The footwall comprised decomposed quartzite and phyllite, and the stratigraphy is cross cut by late dolerite dykes and sills which are manifested by pink clayey zones in the mine area.


Mining Methods

  • Truck & Shovel / Loader


Summary:

Currently, the north and the south block of the A. Narrain mine have mechanized mining operations. The open-pit mines have a bench height of seven metres, haulage roads of 12 metres to 15 metres in width and an overall pit slope of less than 26 degrees.

The lateritic overburden is removed either by blasting or ripping/dozing, loaded onto and transported by 30-tonne trucks.

South Block
The pit in this block is running NW-SE direction. There are 20 nos. of benches with height of 7 m and avg width is around 10m. Out of these 20 benches, bottom most seven are in ore zone, four are in waste and the remaining nine benches are both ore and waste. The pit slope is maintained at <40 degrees.

North block
The pit in this block is running N-S. The top RL and RL of the pit is 946.41m and 905.43m respectively. There are six benches running along the strike of the ore zone. The parameters of the benches are very much in accordance with standards i.e. the height of benches maintained around 10m. The pit slope is maintained at <40 degrees. The length of the existing benches is varying from 100 to 350m. Out of these six benches, four are in ore and remaining two in both ore and waste.

The produced ore will be transported through 35 ton capacity dumpers to the Crushing/Screening plant to get the end products like calibrated lumps and fines. These products will be stacked in designated areas. The waste will be dumped through dumpers systemat ........


Crushing and Grinding
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Processing

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Summary:

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Production:

CommodityUnits2022202120202019201820172016
Iron Ore M dmt  ......  Subscription required  ......  Subscription required  ......  Subscription required  ......  Subscription required2.22.13
All production numbers are expressed as lump & fines.
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Operational Metrics:

Metrics202220212020201920182017
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required4.4 Mt2.3 Mt2.3 Mt
Annual mining capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required4.5 Mt of ore
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Reserves at March 31, 2022:

CategoryTonnage CommodityGrade
Proven & Probable 71.41 Mt Iron 45.3 %
Measured & Indicated 11.86 Mt Iron 39.9 %
Inferred 0.99 Mt Iron 45.6 %



Heavy Mobile Equipment as of March 15, 2020:
HME TypeModelSizeQuantity
Dozer ....................... Subscription required ....................... Subscription required
Dozer ....................... Subscription required ....................... Subscription required
Drill ....................... Subscription required ....................... Subscription required
Excavator ....................... Subscription required 220 HP ....................... Subscription required
Excavator ....................... Subscription required 316 HP ....................... Subscription required
Excavator ....................... Subscription required 424 HP ....................... Subscription required
Loader ....................... Subscription required 242 HP ....................... Subscription required
Truck (dump) ....................... Subscription required 35 tons ....................... Subscription required
Truck (water) 8000 l ....................... Subscription required
Subscription required - Subscription is required.

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Sep 8, 2022
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Corporate Filings & Presentations:

DocumentYear
Integrated Report 2022
................................... Subscription required 2021
................................... Subscription required 2020
................................... Subscription required 2020
................................... Subscription required 2019
Annual Report 2018
Annual Report 2017
Annual Review 2017
Other 2017
Annual Review 2016
Annual Report 2015
Annual Review 2013
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