Influence Factor Analysis for Evolution of Feixianguan Formation Carbonate Platform in Yuanba Area, Northeast Sichuan Basin

• 责任者：Zhao Wenguang (Faculty of Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Cai Zhongxian
• 刊名：Oil Geophysical Prospecting
• 出版年：2010
• 卷期：45(3)
• 关键词：飞仙关组 ; Feixianguan Formation ; 碳酸盐台地 ; carbonate platforms ; 四川盆地 ; Sichuan Basin
• 页码：p.410-413
• 图表：5 illus., 22 refs.
• 分类号：0803
• issnNo：ISSN1000-7210
• isbnNo：CN13-1095/TE

In this paper, the evolution and its influence factor for the carbonate platform of Triassic Feixianguan Formation in Yuanba Area, Northeast Sichuan Basin was studied in the sequence framework. The Feixianguan Formation in Yuanba area was divided into 2 third-order sequences, and 4 systems tracts. For high elevation period the accommodation for platform decreases, limiting vertical thicking potential for the platform, the sediment progrades laterally towards outer gentle slope, and the highstand shedding appears. The oolite beach mainly develops inside the slightly gentle slope and gentle slope which were formed in different stages of highstand shedding.