桂林理工大学学报2016，Vol.36Issue(4)：644-651,8.DOI:10.3969/j.issn.1674-9057.2016.04.002
川东南赤水地区断层相关褶皱特征分析
Research of fault-related folds characteristics in Chishui area, southeast Sichuan basin
摘要
Abstract
In order to study the characteristics of fault-related folds in Chishui area on the southeast margin of Sichuan basin,the structural and evolutionary characteristics are analysed by seismic profile combined with drilling data and equilibrium profile method.The results show that the structure deformation and evolution in this area are mainly controlled by the detachment layer in Middle-Upper Cambrian gypsum salt rock,forming different structural deformation styles between the detachment layers.Layers above the detachment layer structure formed later and the deformation is strong,while the under layer structural stability is weak,so the composite fault slip and fault propagation structure are formed.The deformation of Chishui area was affected by the regional tectonic stress from the east and south in the two directions,without obvious orders.Above the detachment layer structure traps formed later,favorable trap conditions provide the late region hydrocarbon accumulation.The structure under the slip layer is persistent and provided trap conditions of Sinian Dengying Formation in source rock of Low Cambrian Qiongzusi Formation.It provided the shale gas storage conditions in syncline area which has fiat structure and only develops major faults without secondary faults.关键词
断层相关褶皱/平衡剖面/构造特征/赤水地区Key words
fault-related fold/equilibrium profile/structural feature/Chishui area分类
天文与地球科学引用本文复制引用
田梦娜,孙玮,孟宪武,覃作鹏,宋金民,邓宾..川东南赤水地区断层相关褶皱特征分析[J].桂林理工大学学报,2016,36(4):644-651,8.基金项目
国家重点基础研究发展计划“973”项目(2012CB214805) （2012CB214805）
国家自然科学基金项目(41372093) （41372093）
