InRidge program: Preliminary results from the first cruise

Citation
R. Mukhopadhyay et al., InRidge program: Preliminary results from the first cruise, CURRENT SCI, 75(11), 1998, pp. 1157-1161
Citations number
20
Categorie Soggetti
Multidisciplinary,Multidisciplinary
Journal title
CURRENT SCIENCE
ISSN journal
00113891 → ACNP
Volume
75
Issue
11
Year of publication
1998
Pages
1157 - 1161
Database
ISI
SICI code
0011-3891(199812)75:11<1157:IPPRFT>2.0.ZU;2-X
Abstract
The first cruise under India's own Ridge research initiative, InRidge colle cted new data on bathymetry, free-air gravity and magnetic anomalies across the ridge axis between the Vema and Zhivago transform faults in the Centra l Indian Ridge. In addition, basalt and ferro-manganese nodules were collec ted from the Vityaz transform fault area. Basalts are fresh and phyric, con taining plagioclase and olivine phenocrysts, Ferro-manganese nodules from t he same areas show smooth textures, variable oxide thicknesses and fresh ba saltic nuclei, Preliminary studies indicate a possible mixed hydrothermal a nd hydrogenous source for these nodules, The water column was also sampled at the Vema and Vityaz transform fault areas.