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Influence of regional and local topography on the distribution of polymetallic nodules in Central Indian Ocean Basin

DRS at CSIR-National Institute of Oceanography

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Title Influence of regional and local topography on the distribution of polymetallic nodules in Central Indian Ocean Basin
 
Creator Kodagali, V.N.
 
Subject Geology and Geophysics
abundance
faults
bathymetry
ferromanganese nodules
topography
ISW, Central Indian Ocean
 
Description Detailed bathymetric surveys from part of the Central Indian Ocean revealed several bathymetric features such as hills, slopes, valleys, and plains. Areas with a local relief of a few to hundreds of meters generally have a high abundance of polymetallic nodules with a patchy distribution. Areas with less relief have lesser abundance but a regular distribution. North-south topographic profiles have a smoother sea floor than the east-west ones. Near the minor faults, the abundance is high. Mn, Ni, Mn/Fe levels are higher in the plain areas, and rough terrains have high Fe, Co and low Mn/Fe levels
 
Date 1995-06-18T10:01:37Z
2017-09-30T01:29:47Z
1995-06-18T10:01:37Z
2017-09-30T01:29:47Z
1988
 
Type Journal Article
 
Identifier Geo-Marine Letters, vol.8(3); 1988; 173-178
0276-0460
http://drs.nio.org/drs/handle/2264/7034
 
Language en
 
Relation Geo-Mar Lett
SCI
 
Publisher Springer