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

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Occurrence of Authigenic Gypsum in a Deep Sea Core off Madras


Affiliations
1 East Coast Operations II, Marine Wing, G.S.I., 41, Kirlampudi Layout, Visakhapatnam - 530023, India
 

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Euhedral crystals of gypsum in association with pyrite aggregates and corroded planktonic foraminiferal tests occur in silty clay in a deep sea core off Madras. The environment responsible for the origin of gypsum crystals is discussed. Evidences indicate an authigenic origin for the gypsum crystals.

Keywords

Gypsum, Marine Geology, East Coast.
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  • Occurrence of Authigenic Gypsum in a Deep Sea Core off Madras

Abstract Views: 188  |  PDF Views: 141

Authors

P. Vijaykumar
East Coast Operations II, Marine Wing, G.S.I., 41, Kirlampudi Layout, Visakhapatnam - 530023, India
G. G. Vaz
East Coast Operations II, Marine Wing, G.S.I., 41, Kirlampudi Layout, Visakhapatnam - 530023, India

Abstract


Euhedral crystals of gypsum in association with pyrite aggregates and corroded planktonic foraminiferal tests occur in silty clay in a deep sea core off Madras. The environment responsible for the origin of gypsum crystals is discussed. Evidences indicate an authigenic origin for the gypsum crystals.

Keywords


Gypsum, Marine Geology, East Coast.