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Marine mineral resources of the Central Indian Basin: Ferromanganese nodules and crusts

DRS at CSIR-National Institute of Oceanography

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Title Marine mineral resources of the Central Indian Basin: Ferromanganese nodules and crusts
 
Creator Rao, P.S.
Nair, R.R.
 
Subject mineral resources
ferromanganese nodules
mineralogy
concretions
diagenesis
chemical sediments3todorokite
geochemistry
comparative studies
 
Description The morphology, mineralogy and composition of ferromanganese nodules and crusts from the Central Indian Basin and southwestern flank of the Charlsberg Ridge have been characterized from the analyses of data and samples collected at more than 2000 locations. Two different depositional processes, namely diagenetic and hydrogenous, through which nodules and crusts grow, are responsible for morphological and compositional variations. Rough surface nodules from the siliceous sediments have todorokite as the dominant mineral and contain higher concentrations of Mn, Ni and Cu due to the supply of these metals during early diagenesis. Smooth surface nodules associated with pelagic clays have Delta - MnO
 
Date 2009-01-21T10:51:42Z
2009-01-21T10:51:42Z
1996
 
Type Conference Article
 
Identifier 5. Circum-Pacific Energy and Mineral Resources Conference Transactions,Eds. by: Salisbury, G.P.; Salisbury, A.C. 123-134p.
http://drs.nio.org/drs/handle/2264/2218
 
Language en
 
Rights Copyright [1996]. 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 Gulf Pub., Houston, USA