Record Details

Contrast in manganese nodule distribution on either side of 79~'E fracture zone in central Indian Basin

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Contrast in manganese nodule distribution on either side of 79~'E fracture zone in central Indian Basin
 
Creator Kodagali, V.N.
 
Subject Aquatic Non-Resources
ferromanganese nodules
distribution
fracture zones
bottom topography
ocean floor
ISW, Central Indian Ocean
 
Description Seabed topography is one of the prime factors in controlling the distribution of manganese nodules. Study of the nodule abundance on either side of the 79~'E fracture zone in the Central Indian Basin (idenfitied from multibeam bathymetric data) shows that the western side of the fracture zone has higher average nodule abundances. The eastern (downthrown) side of the fracture zone has less nodule abundance, and the seafloor is very smooth with a thick sediment layer. The sedimentation rates on the downthrown side are higher because of the sediment input from the northeastern direction and the fracture zone wall acting as a conduit for sediment transport. Immediately after the fracture zone on the eastern side, the seafloor is flat because of the sediment being deposited on the foot of the fracture zone. Also, the western flank seafloor has higher relief than the eastern flank. However, the metal content in nodules on either side does not show marked variations
 
Date 1994-12-23T10:06:28Z
2017-09-30T02:52:22Z
1994-12-23T10:06:28Z
2017-09-30T02:52:22Z
1994
 
Type Journal Article
 
Identifier Marine Georesources & Geotechnology, vol.12(2); 1994; 131-141
1064-119X
http://drs.nio.org/drs/handle/2264/7490
 
Language en
 
Relation Mar Georesour Geotec
SCI
 
Publisher Taylor and Francis