下扬子区中、古生界变形结构分区  

Deformation-structure division of Mesozoic-Paleozoic erathem of Lower Yangtze area

作　　者：谈迎[1] 邱旭明[2] 李亚辉[1,2] 刘东鹰[1] 

机构地区：[1]中国石油化工股份有限公司江苏油田分公司地质科学研究院 [2]江苏油田分公司,江苏扬州225009

出　　处：《复杂油气藏》2011年第1期14-18,共5页Complex Hydrocarbon Reservoirs

基　　金：江苏省自然科学基金项目(SBK200930173);中国石油化工股份有限公司项目(G8804-07-ZS-0010);国家科技重大专项(2008ZX05005-03-05)

摘　　要：根据滑脱层和变形结构的组合形式,提炼出苏北—南黄海北部基底滑脱冲断—反转型(Ⅰ)、南黄海中央隆起型(Ⅱ)、苏中南黄海中南部冲断—反转型(Ⅲ)、苏南—南黄海南部志留纪滑脱推覆型(Ⅳ)、皖南—浙西勿南沙基底滑脱冲断型(Ⅴ)、江南隆起厚皮变形型(Ⅵ)、张八岭—千里岩厚皮变形型(Ⅶ)等7种一级变形结构组合类型;根据滑脱面上下构造层之间的变形组合特征,分出上下古一致型、上下古都简单型、上古简单下古复杂型、上古复杂下古简单型、上古复杂下古复杂型等5种二级变形结构组合类型。依据三级分区原则将下扬子地区分为一级区7个、二级区7个、三级区10个。Seven first-level combination types are extracted according to the combination forms of detachment-fault and deformation-structure,which are the the type of basal decollement thrust-anti-transformation in north of Subei-South Yellow Sea （Ⅰ）,the type of uplift in South Yellow Sea centre（Ⅱ）,the type of thrust-anti-transformation in Suzhong and south-central of South Yellow Sea（Ⅲ ）,the type of siluric decollement nappe in Sunan and south of South Yellow Sea （Ⅳ）,the type of basal decollement thrust in Wannan-Zhexi-Wunansha （Ⅴ）,the type of thick-skinned deformation in Jiangnan uplift （Ⅵ）,and the type of thick-skinned deformation in Zhangbaling-Qianliyan thick-skinned deformation （Ⅶ）.Five second-level combination types are extracted according to the deformation combination characteristic of structure layers above and below detachment-fault,which are the type Ⅰ that upper palaeozoic accord with lower palaeozoic,the type Ⅱ that both upper palaeozoic and lower palaeozoic are simple,the typeⅢ that upper palaeozoic is simple and lower palaeozoic is complex,the type Ⅳ that upper palaeozoic is complex and lower palaeozoic is simple,the type Ⅴ that both upper palaeozoic and lower palaeozoic are complex.According to the three level division rule,lower Yangtze area is divied into seven first-level divisions,seven second-level divisions,and ten third-level divisions.

关 键 词：下扬子 中、古生界 变形结构分区 

分 类 号：TE122[石油与天然气工程—油气勘探]