Journal of the Geological Society of India

, Volume 79, Issue 6, pp 557–562 | Cite as

Distribution of Indus born mica along Gulf of Kachchh coast: Implications in understanding current dynamics

Article

Abstract

Indus is one of the major sources of sediments to the Gulf of Kachchh. Yet only its <63 micron fraction is studied in detail with regards to the offshore current dynamics. Hence here we present our study on characteristic signature of the Indus sediment load (i.e. mica minerals) in >63 micron size fraction along the coast of Gulf of Kachchh. The spatial distribution of mica minerals along the Gulf of Kachchh coast was studied which showed in general decreasing trend as we move along the northern and southern coast of the Gulf of Kachchh but, an increase in amount near the southern mouth at Okha. The study shows that the earlier proposed tidal barrier is ineffective in restricting movement of mica across the mouth of the gulf due to its characteristic transport mechanism. Also the presence of mudflats along the gulf of Kachchh coast plays a vital role as sediment receptors in the active sediment transport processes and mica minerals prove to be a promising simple tracer in studying the Indus born sediments in the region.

Keywords

Mica minerals Sediment pathways River Indus Gulf of Kachchh 

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Copyright information

© Geological Society of India 2012

Authors and Affiliations

  • S. P. Prizomwala
    • 1
  • S. B. Shukla
    • 1
  • Nilesh Bhatt
    • 1
  1. 1.Department of Geology, Faculty of ScienceM.S. University of BarodaVadodaraIndia

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