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wo guo dong bu hai yu chen ji pen di yu dao yu di zhi gai lun
Author(s): 
Pages: 184-190
Year: Issue:  2
Journal: Oil & Gas Geology

Keyword:  沉积盆地我国东部东海盆地中生代火山岩冲绳海槽钓鱼岛岛屿岩浆活动苏北盆地地壳结构;
Abstract: Thousands of islands are scattered around in the Yellow and East ChinaSeas,comprising Changshang Island in the north,the Southern Penghu Is-lands in the south and Diaoyu Dao in the east.Rock outcrops in these is-lands,which constitute basements of sedimentary basins,play an importantpart in their development.The Yellow Sea basin,with Meso-Cenozoic sedi-ments of 6,000m thick,contains source rocks and several dozens of tec-tonic traps favourable to oil and gas accumulation.Being centrolled bytectonic system,it has undergone two stages of development,i.e.theearly fault-bound depression and the later regional depression,both accom-panied by sedimentation.The East China Sea basin,being filled with Cenozoic sediments of 10,000mthick,is rich in organic matters brought into the basin by the Yangtze andother rivers,and complicated by clusters of enormous juxtaposed tectonicbelt and zones,becomes most potential for oil and gas exploration.The ba-sin is a back-arc one,its origin and development are controlled in someextent by the interaction between the Pacific and Eurasia plates.
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