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India
Narrain (Karnataka) Mine

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 Location:
20 km W from Chitradurga, India

  Regional Office:
Sesa Ghor, 20 EDC Complex, Patto
Panaji
India
Goa 403001
Phone  ...  Subscription required
Fax+91-832-246-0690
WebsiteWeb
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Filings & News

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Overview

StageProduction
Mine TypeOpen Pit
Commodities
  • Iron Ore
Mining Method
  • Truck & Shovel / Loader
Mine Life18 years (as of Jan 1, 2019)
Vedanta Limited’s main operations in Karnataka are at the A. Narrain mine.


Owners & OPERATOR

Source: p. 245
CompanyInterestOwnership
Vedanta Resources plc. 50.33 % Indirect
Vedanta ltd. (operator) 100 % Direct
The Narrain (Karnataka) mine is operated by Vedanta Limited.

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.


Crushing and Grinding


Processing


Summary:

The A. Narrain mine is equipped with dry process facilities for processing all grades of ore.

The ore mined is processed at the mine’s processing facilities, which involves crushing and dry screening processes. The processed ore is then transported by road to the railway yard, for onward transport to customers in Karnataka, Goa and other places. Ore produced in Karnataka ranges from 56.0% to 60.0% iron content and comprises 82.0% fines and 18.0% lumps. The two processing plants at the A. Narrain mine have a combined capacity of 1,150 tonnes per hour.


Production:

CommodityUnits201920182017201620152014
Iron Ore M dmt  ......  Subscription required  ......  Subscription required2.130.61.5
All production numbers are expressed as lump & fines.
Subscription required - Subscription is required.

Operational Metrics:

Metrics2019201820172016
Ore tonnes mined  ......  Subscription required  ......  Subscription required  ......  Subscription required
Annual production capacity  ......  Subscription required  ......  Subscription required  ......  Subscription required2.29 Mt
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Reserves at March 31, 2019:

CategoryTonnage CommodityGrade
Proven & Probable 56.3 Mt Iron 49.4 %
Measured & Indicated 15.79 Mt Iron 48.3 %
Inferred 9.17 Mt Iron 43.7 %


Heavy Mobile Equipment:

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Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2018
Annual Report 2017
Annual Review 2017
Other 2017
Annual Review 2016
Annual Report 2015
Annual Review 2013
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Aerial view:

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