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Title: Geochemical studies of clays from red sediments of Visakhapatnam coast, east coast of India
Authors: Rao, A T
Raman, C V
Issue Date: Mar-1986
Publisher: NISCAIR-CSIR, India
Abstract: Red sediments, characterised by badland like topography, found along the Visakhapatnam - Bhimunipatnam coast and associated with khondalite hill ranges comprise 60-70% (quartz + heavies), 20% silt and 10% ferruginous clay. Kaolinite and illite proportions are dominant in the clays of the red sediments and compare fairly with the clays from the offshore region. The similar concentration of elements - K, Fe, Ti, Cr,Co, Ba, Sr and Pb - supports the clay input from the red sediments into the shelf region, Ti, V, Mn, Cr with Fe and Sr, Ba, Pb with K show positive relationship, which reflects alteration of detrital magnetite and ilmenite and orthoclase in the source rocks.
Page(s): 20-23
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.15(1) [March 1986]

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