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Aynak : a world-class sediment-hosted stratiform copper deposit in Afghanistan

Benham, A.J.; Coats, J.S.; Kovac, Peter. 2006 Aynak : a world-class sediment-hosted stratiform copper deposit in Afghanistan. In: 12th IAGOD Symposium on 'Understanding the genesis of ore deposits to the meet the demands of the 21st Century', Moscow, Russia, 2006. 245-248.

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Abstract/Summary

The Aynak copper deposit, 30 km south of Kabul in Afghanistan, was discovered by Afghan-Soviet geologists in the 1970s. Extensive exploration from 1974-89 included drilling, trenching and adits. This delineated several large ore bodies and smaller lenses with a reported resource figure of 240 Mt at 2.3% Cu (ESCAP, 1995). Mineralisation is stratabound and consists of disseminated bornite and chalcopyrite in a cyclic sequence of metamorphosed sediments of late Precambrian age. A model proposes copper was leached from underlying volcanic rocks by circulating brines and then moved up faults to deposit copper sulphides within the overlying sediments.

Item Type: Publication - Conference Item (Paper)
Programmes: BGS Programmes > Economic Minerals
ISSN: 095098944
NORA Subject Terms: Earth Sciences
Date made live: 01 Sep 2010 15:26
URI: http://nora.nerc.ac.uk/id/eprint/10870

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