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First Discovery of Mud Volcanoes in Central Qiangtang, Northern Tibet, China

详细信息

责任者：Xie Chaoming (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Li Cai
刊名：Geological Bulletin of China
出版年：2009
卷期：28(9)
关键词：泥火山 ; mud volcanoes ; 羌塘盆地 ; Qiangtang Basin
页码：p.1319-1324
图表：2 illus., 1 plate, 10 refs.
分类号：0801
issnNo：ISSN1671-2552
isbnNo：CN11-4648/P

摘要

During this time, a large number of mud volcanoes were firstly discovered in central Qiangtang, Qinghai-Tibetan Plateau, and some of the eruptive materials contain rocks with asphalt veins. In the area, mud volcano groups outcrop above the Quaternary sediments, and they were significantly controlled by new tectonic faulting movement. The discovery of mud volcanoes where there are eruptive materials containing asphalt veins indicate that there had been large-scale hydrocarbon migration and accumulation in central Qiangtang, asphalt veins should be embodied between those interlayer fissures of lacustrine limestone of the Paleogene Suonahu Group, and the asphalt vein belongs to interlayer type. All theses findings show that Cenozoic sedimentary basin in Qiangtang has a very good petroleum prospect.

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