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Sulphide mineralisation in Betul Belt: Classification and general characteristics
M.N. Praveen, , H.S. Shrivastava, M.L. Dora, L.D. Gaikwad
Published in
Volume: 69
Issue: 1
Pages: 85 - 91
Sulphide mineralisation and syn-volcanic hydrothermal alteration in the Betul Belt is associated with submarine bimodal volcanism. Felsic volcaniclastics form the favourable host rocks in most areas. Alteration zones have been metamorphosed to middle to upper-amphibolite facies giving rise to various metamorphic mineral assemblages. Based on metal ratios, mineralisation can be classified into Zn-Cu and Zn-Pb-Cu types. The difference between the two types might be related to the composition of the footwall volcanics. Zn-Cu types are in close proximity to mafic volcanics towards their footwall side whereas, Zn-Pb-Cu types occur in areas dominated by felsic volcanics with little mafic volcanics towards the footwall. The sub-parallel sheet like nature of the ore bodies and strata-bound alteration might be related to the permeable nature of the host volcaniclastics. © Geol. Soc. India.
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JournalJournal of the Geological Society of India