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Basalt microlapilli in deep sea sediments of Indian Ocean in the vicinity of Vityaz fracture zone

DRS at CSIR-National Institute of Oceanography

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Title Basalt microlapilli in deep sea sediments of Indian Ocean in the vicinity of Vityaz fracture zone
 
Creator Nath, B.N.
Iyer, S.D.
 
Subject Geology and Geophysics
quaternary
volcanic rocks
mid-ocean ridges
cores
fracture zones
sediments
basalts
ISW, Indian Ocean
 
Description Two cores recovered from the flanks of Mid-India oceanic ridge in the vicinity of Vityaz fracture zone consist of discrete pyroclastic layers at various depths. These layers are composed of coarse-grained, angular basaltic microlapilli in which labradorite is the major mineral set in a glassy mesostasis. Chemically the microlapilli are similar to Mid-Indian oceanic ridge basalts. The microlapilli are suggested to have been formed by the process of granulation, transportation and deposition, during Late Quaternary when lava of low viscosity erupted from small vents on a segment of Vityaz fracture zone
 
Date 1995-06-24T10:01:49Z
2017-09-30T01:29:53Z
1995-06-24T10:01:49Z
2017-09-30T01:29:53Z
1989
 
Type Journal Article
 
Identifier Journal of the Geological Society of India, vol.34; 1989; 303-309
0016-7622
http://drs.nio.org/drs/handle/2264/7149
 
Language en
 
Relation J Geol Soc India
SCI
 
Publisher Geological Society of India