Evolutionary History and Deformation Mechanism of Thrust-Nappes Structure in Suqiao-Xiaoxiyang Well Field, Southwestern Fujian Province

详细信息   

• 责任者：Sun Shujing （China University of Geosciences ; Wuhan 430074 ; China） ; Li Xing
• 刊名：Coal Geology & Exploration
• 出版年：2008
• 卷期：36(3)
• 关键词：推覆体 ; nappes ; 福建 ; Fujian
• 页码：p.6-11
• 图表：4 illus., 18 refs.
• 分类号：0300
• issnNo：ISSN1001-1986
• isbnNo：CN61-1155/P

摘要

///Based on previous study data and the systematic studying the character of geometry and kinematics of the thrust-nappe structures in Suqiao-Xiaoxiyang well field, this paper suggests that deformation mechanism is a “仑” style, the thrust-nappe faults and layer sliding faults are basic structural styles in the field. The layer sliding faults formed in Early Indosinian Epoch and the thrust-nappes formed through Early Yanshanian and Himalayan Epoch. The well field suffered erosion and deformation under regional stretching conditions, resulting in a series of thrusts and made the faults F₅ and F₆ reversion. At last, it is suggested that during coal exploration should pay enough attention to the disappear of strata, and emphasized the combination of geophysics and drilling under the thrust-nappes structure.