• 责任者：Qin Yuanyuan (Faculty of Resources and Environment ; Southwest Petroleum University ; Chengdu 610500 ; China) ; Meng Kun
• 刊名：Acta Geologica Sichuan
• 出版年：2013
• 卷期：33(4)
• 关键词：飞仙关组 ; Feixianguan Formation ; 地层剖面 ; stratigraphic sections ; 重庆 ; Chongqing
• 页码：p.394-398,403
• 图表：5 illus., 12 refs.
• 分类号：1200
• issnNo：ISSN1006-0995
• isbnNo：CN51-1273/P

     The geological section at Shiliang, Yunyang, Chongqing, is located on the southern Dabashan thrust belt on the northern margin of the upper Yangtze plate, and was located on the western side of the Early Triassic Chengkou-Western Hubei trough. Study of this section in detail is favorable to the reconstruction of the sedimentary history of the eastern side of the carbonate platform in northeast Sichuan Basin. Based on the measured section, the First Member of the Feixianguan Formation consists of slope facies. The lower part of the Second Member of the Feixianguan Formation consists of the slope facies on the eastern margin of the carbonate platform facies with shoal on edge of platform in the middle and restricted platform lagoon deposits in the top. The Third Member consists of open platform and restricted platform lagoon deposits, and the Fourth Member of belongs to restricted platform tidal fiat deposits. The Feixianguan Formation on the western side of Chengkou-west Hubei trough comprises two ascendingly shallowing depositional cycles. The results of section correlation show that the relative changes of sea level has obvious controlling effect over the evolution of sedimentary facies of the Feixianguan Formation. The shoal on edge of platform was almost developed in the sea level fall period.