Record Details

Ferromanganese oxides from Mid-Indian ridge, seamounts and abyssal plains from the Indian Ocean

DRS at CSIR-National Institute of Oceanography

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Title Ferromanganese oxides from Mid-Indian ridge, seamounts and abyssal plains from the Indian Ocean
 
Creator Rao, P.S.
Pattan, J.N.
 
Subject Geology and Geophysics
todorokite
mineralogy
abyssal plains
seamounts
ridges
ferromanganese nodules
ferromanganese oxides
ISW, Indian Ocean
 
Description Mineralogical and chemical investigations show that todorokite is the only Mn mineral in the Mid-Indian Ridge ferromanganese, coatings, delta MnO2 in the seamount crusts, and well crystallised todorokite and minor amounts of delta MnO2 in the abyssal nodules. Enrichment of Mn, Cu, Ni and Mn/Fe ratio is in the sequence, abyssal nodules seamount crusts Mid-Indian Ridge samples. Fe is highest in the Mid-Indian Ridge samples followed by seamount crusts and abyssal nodules. Co is enriched (up to 0.47%) in the seamount crusts. The ferromanganese oxides from the Mid-Indian Ridge, seamount crusts and abyssal nodules appear to be of hydrothermal, hydrogenous and early-diagenetic in origin respectively
 
Date 1995-08-14T10:01:52Z
2017-09-30T01:29:55Z
1995-08-14T10:01:52Z
2017-09-30T01:29:55Z
1989
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, vol.18; 1989; 11-15
0379-5136
http://drs.nio.org/drs/handle/2264/7197
 
Language en
 
Relation Indian J Mar Sci
SCI
 
Publisher CSIR-NISCAIR