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Base-metal mineralisation in the Ganesh Himal region of Nepal Himalayas
C K CHAKRABARTI, A K GHOSH
Published in -
1996
Volume: 50
   
Issue: 3
Pages: 205 - 216
Abstract
Zinc-lead mineralisation of the Ganesh Himal region in Nepal Himalayas appears to be of considerable economic interest. The Genesh Himal ore with an expected reserve of 2-3 million tonnes contains about 16.4% Zn, 2.5% Pb and some recoverable silver. Mineralisation occurs very close to the Main Central Thrust (MCT) in crystalline saccharoidal dolomite within a highly-folded repetitive sequence of garnetiferous mica schist, quartzite, calcareous schist and amphibolite, which along with the ore suffered almandine-amphibolite fades metamorphism and intense Himalayan deformation. Graphitic schist occurs below the mineralised crystalline dolomite. Confined to a single carbonate stratum, the Ganesh Himal ore is believed to be of sedimentary origin. The coarse-grained nature of the recrystallised ore is characteristic of the deposit, resulted possibly due to its proximity to the MCT.
About the journal
JournalIndian Minerals
Publisher-
ISSN0019-5936