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Offshore extension of the structural element of Udipi, confirmation from marine magneties

DRS at CSIR-National Institute of Oceanography

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Title Offshore extension of the structural element of Udipi, confirmation from marine magneties
 
Creator Subrahmanyam, V.
 
Subject Geology and Geophysics
isomagnetic lines
magnetic anomalies
faults
offshore
ISW, India, West Coast
 
Description The isomagnetic anomaly map (1:3,00,000) reflects conspicuous E-W, NW-SE, WNW-ESE, NE-SW and N-S trends which are similar to that of the onshore Dharwar trend. The map also shows short wavelength, high amplitude anomalies off Condapoor, borad wavelength anomalies off Mangalore and relatively smooth zone further south Kasaragod. A prominent WNW-ESE structural element (fault) south off Coondapoor is observed in the three eastern profiles (A-A', B-B' and C-C') which was not reflected in the western profiles (D-D', E-E' and F-F') and this can be extrapolated towards the adjacent coast to join an onshore structural element trending in the same direction. This structural element perhaps represents the offshore extension of the fault at Udipi. The broad wavelength anomalies off Mangalore and Malpe may be generated from sources composed at a depth of around 4 km. The observed magnetic smooth zone south off Mangalore is interpreted in terms of insignificant magnetization contrast in the crystalline basement
 
Date 1997-11-28T10:01:35Z
2017-09-29T13:48:12Z
1997-11-28T10:01:35Z
2017-09-29T13:48:12Z
1987
 
Type Journal Article
 
Identifier Journal of the Geological Society of India, vol.29(1); 1987; 256-263
0016-7622
http://drs.nio.org/drs/handle/2264/6081
 
Language en
 
Relation J Geol Soc India
SCI
 
Publisher Geological Society of India