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Authors
Affiliations
1 Department of Geology, University of Kerala, Kariavattom - 695 581, IN
2 T.K.M. Engineering College, Kollam, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 69, No 6 (2007), Pagination: 1313-1318
Abstract
The Quartz pebble conglomerate (QPC) markings the base of Bababudan Group of Dharwar Supergroup is well exposed in southern margin of Bababudan schist belt and is known as the Kalasapura conglomerate. The matrix of conglomerate has been studied in this paper for its petrography and chemistry. The matrix is siliceous or sometimes ferruginous in nature and rich in heavy minerals. It contains A1203, Fe203 and TiO2, and there exists considerable difference between the matrix and whole rock chemistry. The variation diagrams suggest that: (i) all the oxides other than SiO2 come from the matrix. (ii) geochemically it has arkose-subarkose affinity and (iii) deposited under humid climatic conditions in a cratonic basin.
Keywords
Bababudan Group, Quartz Pebble Conglomerate, Unconformity, Quartz arenite, Kalasapura, Karnataka.
