CLAY MINERALOGY AND DIAGENESIS OF DISANG SILICICLASTIC ROCKS FROM CHAKHABAMA AREA, NAGALAND, INDIA

The Disang siliciclastics (Cretaceous-Eocene) exposed in and around Chakhabama within the Kohima and Phek districts of Nagaland form a part of the Kohima synclinorium within the Inner Fold Belt of Naga Hills. These rocks possess a thermodynamically stable eogenetic assemblage of authigenic minerals...

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Bibliographic Details
Published inJournal of applied geochemists Vol. 19; no. 4; pp. 416 - 422
Main Authors Mekro, Vizovol, Pandey, Nagendra
Format Journal Article
LanguageEnglish
Published Hyderabad Indian Society of Applied Geochemists (ISAG) 01.10.2017
Subjects
Authigenic minerals
Carbonates
Chlorite
Clay
Clay minerals
Cretaceous
Deformation
Diagenesis
Eocene
Equilibrium
Gasoline
Geology
Illite
Illites
Metamorphism
Microscopy
Mineralogy
Minerals
Pyrite
Quartz
Rock
Rocks
Sediments
Silica
Silicon dioxide
Stone
Studies
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Summary:The Disang siliciclastics (Cretaceous-Eocene) exposed in and around Chakhabama within the Kohima and Phek districts of Nagaland form a part of the Kohima synclinorium within the Inner Fold Belt of Naga Hills. These rocks possess a thermodynamically stable eogenetic assemblage of authigenic minerals that include chlorite, illite, quartz, carbonates and pyrite. Bending, fracturing, crushing of the minerals and the presence of silica and carbonate cements are a manifestation of both the physical and chemical processes that characterize high grade burial diagenesis.
ISSN:0972-1967
2319-4316