Karnataka, India

Main commodities: Fe
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The Donimalai iron deposit is approximately 200 km ENE of the Arabian Sea port of Marmagoa (340 km by rail) and is located in northern Karnataka State of western India.

The iron ores are hosted by the Neoarchaean Dharwar Supergroup supracrustal rocks which overlie and are infolded into a Mesoarchaean basement in the Western Dharwar craton.

For a summary of the geology of the Western Dharwar craton and the Dharwar Supergroup see the separate  Kudremukh   record.

Donimalai exploits hematite enriched ores in banded iron formation and is operated by the National Mineral Development Corporation Ltd at a rate of 4 Mt pa (2005) of lump and fines ore.

Resource and reserve figures and estimates from a variety of sources include:

    108 Mt @ >65% Fe - original mining reserve, 1977,
    31.7 Mt @ >65% Fe - remaining reserve, 2005.

The most recent source geological information used to prepare this summary was dated: 2006.    
This description is a summary from published sources, the chief of which are listed below.
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  References & Additional Information

Porter GeoConsultancy Pty Ltd (PorterGeo) provides access to this database at no charge.   It is largely based on scientific papers and reports in the public domain, and was current when the sources consulted were published.   While PorterGeo endeavour to ensure the information was accurate at the time of compilation and subsequent updating, PorterGeo takes no responsibility what-so-ever for inaccurate or out of date data, information or interpretations.

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