Oil & Gas Geology ›› 2005, Vol. 26 ›› Issue (5): 647-654.doi: 10.11743/ogg20050515

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Development and evolution of basins in Yellow Sea

Zheng Qiugen1,2, Cai Liguo1, Ding Wenlong3, Lu Yongde1, Cao Qinggu1   

  1. 1. Institute of Petroleum Geology, Exploration and Production Research Institute, SINOPEC, Wuxi Jiangsu;
    2. Ocean Geology & Earth Science Institute of Tongji University, Shanghai;
    3. China university of geosciences, Beijing
  • Received:2005-06-10 Online:2005-10-25 Published:2012-01-16

Abstract:

The subduction of Yangtse plate under the North China plate ended the continental collision and changed into intracontinental subduction at the end of Triassic, resulting in the formation of intracontinental foreland basins on the flanks of Dabie-Sulu orogenic belt.In this period,the South Yellow Sea basin on the southern side of Dabie-Sulu orogenic belt was an intracontinental foreland basin(J1—J2),while the North Yellow Sea basin and Jiaolai basin on the northern side of Dabie-Sulu orogenic belt were probably uplifted,because the Lower and Middle Jurassic sequence is absent.From Late Jurassic to Early Cretaceous,extensive volcanic eruption and magmatic intrusion occurred in the eastern China,indicating the dramatic change of tectonic stress in this region.Tectonic settings were obviously different on the northern and southern sides of Dabie-Sulu orogenic belt.The characteristics of volcanic rocks on the northern side of Dabie-Sulu orogenic belt indicate that this region,including North Yellow Sea and Jiaolai basins,was in a rifting stage,represented by the occurrence of grabens and half-grabens and the development of high angle plane normal faults and listric normal faults.In Late Cretaceous to Early Tertiary,the tectonic setting in eastern China changed obviously into large scale rift faulting.The A-type granite developed in Dabie-Sulu orogenic belt in late Cretaceous,indicating the end of orogenesis and entered into the avalanche period and post-orogenic period of orogenic belt,which was consistent with the extension period in eastern China.Rift faulting was strong in South Yellow Sea basin,where relatively thick Eogene strata was deposited.Rift faulting was relatively weak in North Yellow Sea basin,where thin Eogene strata was deposited only in a small area in the north.The South and North Yellow Sea basins changed from rift to depression due to thermal subsidence in Neogene.

Key words: tectonic setting, tectonic plate activity, high-potassium volcanic rocks, North Yellow Sea basin, South Yellow Sea basin, eastern China

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