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NIO and NGRI together look for Mesozoic prospecting
The Mesozoic prospects currently hold nearly half of the world's hydrocarbon reserves. The detection and delineation of the Mesozoic sediments under volcanic rocks, is always a challenging task to the oil industry. Such Mesozoic sediments are also supposed to be underlying the Deccan traps on west coast of India. These have spread over a major part of the western continental shield and continued into the offshore regions, particularly in Gulf of Kachchh. Thus detection and mapping of Mesozoic sediments in Gulf of Kachchh will provide us some clues for hydrocarbon reserves therein. Director General of Hydrocarbons (DGH), Govt. of India, Dr. V.K. Sibal, was looking for the agencies who can carry out suitable geophysical studies such as marine seismic and magnetotellurics in Gulf of Kachchh for delineation of Mesozoic sediments. This responsibility was entrusted to two major Earth Science organizations, both from CSIR: National Institute of Oceanography (NIO), Goa and National Geophysical Research Institute (NGRI), Hyderabad, after submission of a joint project proposal on Marine Seismic and marine magnetotelluric survey in Gulf of Kachchh Region NIO would be surveying this area to acquire 235-line km of marine seismic refraction data by deploying Ocean Bottom Seismometers on the ocean floor. This will be carried out by recording the refracted seismic signals through different geological strata in the Gulf of Kachchh. The seismic signals are basically generated by the high volume air-guns. NGRI would carry out magnetotelluric studies. DGH recently released part of the project grant to the lead agency - NGRI, which was then handed over to NIO on 3 July 2006 to carry out part of their work. Dr. K.S. Krishna is the Project Leader in NIO and other members of the team include Drs. AK Chaubey, GC Bhattacharya and K Srinivas.
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