Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

D. Padmalali ¹, S. Santhosh ², D. S. Suresh Babu ¹

Affiliations
1 Centre for Earth Science Studies, Trivandrum - 695 031, IN
2 Department of Geology, University of Kerala. Kariavattom P.O., Trivandrum - 695 581, IN

Abstract

The Tertiary carbonaceous clay deposits of Kerala abound in iron sulfide minerals such as pyrite and marcasite. Pyrite is confined mainly to the Quilon beds and marcasite to the Warkalli beds. Manganese, Zn, Pb, Ni, Co, Cd and Cu are substantially high in marcasite than in pyrite. Trace metals (except Zn) are markedly high in the carbonaceous clays of the Warkalli section than in those of the Pozhikkara section. The observed variation in the trace metal contents of sulfide minerals as well as carbonaceous clays of the two sections might have resulted from differences in depositional environments.

Keywords

Geochemistry, Iron Sulfide Miperals, Tertiary Deposits, Kerala.

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