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Some geological processes in the Macro-tidal regime of Gulf of Kachchh, Northwest coast of India

DRS at CSIR-National Institute of Oceanography

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Title Some geological processes in the Macro-tidal regime of Gulf of Kachchh, Northwest coast of India
 
Creator Vora, K.H.
Chauhan, O.S.
Rao, B.R.
 
Subject Geology and Geophysics
sediments
geomorphology
seismic profiles
side scan sonar
sub-bottom profiling
echosounder profiles
ISW, Kutch Gulf
ISW, India, Gujarat
 
Description Echosounding and subbottom profiling, supplemented by side scan sonar profiling have been carried out followed by sediment sampling in the inner gulf of Kachchh The results show the presence of sandwaves with a height of 3-6 m and wavelength of about 150-350 m in the Kandla Creek The Sara, Sanu and Phang creeks exhibit uneven to rugged topography with about 4 to 12 m deep V-shaped channels The seismic profiles across these creeks show 10-15 m thick clays The channels are cutting across the reflectors The axial part of the Hansthal Creek is uneven to rugged and is devoid of soft sediments, the flanks, however, show 2 to 8 m thick clays The outer anchorage area in the south, by contrast, has smooth and even topography and stratified layers with maximum thickness of about 18 m The acoustic basement is uneven but major channel cuttings are not noticed Based on the results of the investigation it is concluded that the erosional processes are operating in the creeks while the outer anchorage area is undergoing the deposition The area, has, perhaps, witnessed more frequent climatic fluctuations recently as evident from shallow seismic records
 
Date 1995-06-17T10:01:32Z
2017-09-29T13:48:14Z
1995-06-17T10:01:32Z
2017-09-29T13:48:14Z
1987
 
Type Journal Article
 
Identifier Indian Journal of Marine Sciences, vol.16; 1987; 230-234
0379-5136
http://drs.nio.org/drs/handle/2264/6111
 
Language en
 
Relation Indian J Mar Sci
SCI
 
Publisher CSIR-NISCAIR