Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

N. Y. Bhatt ¹, R. D. Shah ¹, P. M. Solanki ¹

Affiliations
1 Geology Department, M. G. Science Institute, Ahmedabad - 380 009, IN

Abstract

No Abstract.

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N. Y. Bhatt ¹, D. M. Shringarpure ², S. J. Patel ²

Affiliations
1 Department of Geology, M.G. Science Institute, Ahmedabad - 380 009, IN
2 Department of Geology, M.S. University of Baroda, Vadodara - 390 002, IN

Abstract

Structures such as sand domes, sand holes and bubble/cavernous sand found in the Chari Sandstone of Kachchh owe their origin to trapping and escaping of air between two water saturated layers of sand in fluctuating tidal conditions.

Keywords

Sand Dome, Sand Hole, Bubble Sand, Cavernous Sand, Chari Formation, Kachchh, Gujarat.

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S. J. Patel ¹, N. Y. Bhatt ², B. G. Desai ³

Affiliations
1 Department of Geology, M S University of Baroda, Vadodara -390002, IN
2 M. G. Science Institute, Navarangpura, Ahmedabad-380009, IN
3 Department of Geology, M. S. University of Baroda, Vadodara-390002, IN

Abstract

Trace fossil of ichnospecies Asteriacites quinquefolius- QUENSTEDT 1876, of the pentamerous star tish is recorded for the first time from the Central Mainland Kachchh, Western India It occuis in the lower part of Bhuj Formation, on thin slabs of fine grained sandstone that intercalate with siltstone, along with symmetrical ripple surface covered by mud drapes Two different types of behavioural activities are found (i) solitary and isolated deep impression of the traces, on account of their resting structures and (n) composite, overlain structure indicating the movement of arms for preying activities The occurrence of Asteriacites traces in the Lower Bhuj Formation indicates tidal-subtidal condition in a fully marine environmental set up.

Keywords

Asteriacites, Asteroid (star-fish), Trace fossil, Marine environment, Bhuj Formation, Kachchh, Gujarat.

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