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Offshore Indus Basin : ウィキペディア英語版 | Offshore Indus Basin The offshore Indus Basin is one of the two basins in offshore Pakistan, the other one being the offshore Makran basin. The Murray Ridge separates the two basins.The offshore Indus basin is approximately 120 to 140 kilometers wide and has an areal extent of ~20,000 square km. It is a rift and passive margin basin that formed as a result of the separation of the Indian plate from Africa during Jurassic. During Paleocene, the Indian plate passed over the Reunion mantle hotspot that led to the extrusion of the Deccan volcanics. This was followed by the collision of the Indian plate with the Eurasia during Eocene, forming the Himalayas.〔 The oldest sedimentary rocks penetrated in the offshore Indus basin are Cretaceous in age while the youngest are the Miocene-Plio-Pleistocene sediments brought down by the Indus river after the Himalayan uplift.〔〔 The offshore Indus basin boasts the second largest fan system in the world. The sediments in the fan date back to the Himalayan uplift. The Indus fan is characterized by channel-levee systems which make good spots for petroleum exploration. The offshore Indus basin is a frontier basin. To-date 12 wells have been drilled in the basin with no success. Petroleum system analyses highlight that the presence of seal and immature source rocks maybe the reasons behind the failure of wells drilled in the offshore Indus basin.〔 ==Tectonic setting==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Offshore Indus Basin」の詳細全文を読む
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