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Major, trace, and rare earth elements in the sediments of the Central Indian Ocean Basin: Their source and distribution

DRS at CSIR-National Institute of Oceanography

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Title Major, trace, and rare earth elements in the sediments of the Central Indian Ocean Basin: Their source and distribution
 
Creator Pattan, J.N.
Jauhari, P.
 
Subject trace elements
rare earths
sediments
geochemistry
distribution
 
Description The distribution maps of elements show that highest concentrations of Mn, Cu, Ni, Zn, Co, and biogenic opal in the surface sediment occurs between 10 degrees S and 16 degrees S latitude, where diagenetic ferromanganese nodules rich in Mn, Cu, Ni, and Zn are present. The studies highlight that the excess element concentration (detrital unsupported) such as Mn, Cu, Ba, Ni, Co, Pb, and Zn have contributed greater than 80% of their respective bulk composition. These excess elements exhibit strong positive correlation with each other suggesting their association with a single authigenic phase such as Mn oxide. Biogenic opal contributes 30-50% of the total silica in the siliceous sediment. Aluminum, Fe, and K have contributed greater than 60 % from terrigenous detrital source compared to their bulk composition. Calcium, Sr, and P depict a common source such as biogenic. Bulk element concentration such as Li, V, Cr, Sc, and Zr are positively correlated with Ti indicating their terrigenous detrital source. REE in these sediments are mostly carried by authigenic phases such as manganese oxide and biogenic apatite
 
Date 2009-01-07T10:43:43Z
2009-01-07T10:43:43Z
2001
 
Type Journal Article
 
Identifier Marine Georesources and Geotechnology, Vol.19; 85-106p.
http://drs.nio.org/drs/handle/2264/1563
 
Language en
 
Rights Copyright [2001]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
 
Publisher Taylor and Francis