PROGRESSIVE DEFORMATION IN YANGTZE PLATE——SERIES 2 OF THE SOUTHERN STRUCTURE STUDIES
-
摘要: 印支—早燕山期由于古特提斯洋盆地关闭,扬子板块大陆边缘受到挤压与碰撞作用,在板内形成了江南—雪峰基底拆离体(A带),由于从南东向北西方向(同时派生由东向西,由南向北方向)的大规模水平推挤作用,使扬子板内中古生界盆地发生了由强及弱的递进(衰减)变形改造。在其前缘形成了高角度冲断层—断弯褶皱带(B带)、逆掩断层—断展褶皱带(C带)、滑脱断层—滑脱褶皱带(D带)、共轭冲断层—膝折褶皱带(E带)和古隆起—单斜带(F带);在其后缘则形成了滑覆断层—滑脱褶皱带(G带)。不同构造变形区带具有不同的水平位移量和压缩变形量、不同的逆冲断裂与褶皱的空间配置、不同的构造圈闭类型和保存条件,因而控制了不同类型的油气聚集与分布。Abstract: From Indosinian to early Yanshanian,ancient Tethys basin closed.The continent margin of Yangtze Plate was extruded and collided,forming the Jiangnan-Xuefeng basement decoupling structure(zone A) in the plate.Due to the massive horizontal extrusion effect from SE to NW(E to W,S to N at the meanwhile),Meso-Paleozoic basins in Yangtze Plate were deformed progressively.At the front,the following zones were formed: high-obliquity thrust and fault-bend fold zone(zone B),overthrust and fault-propagation fold zone(zone C),detachment fault and detachment fold zone(zone D),conjugate thrust and kink fold zone(zone E),and ancient uplift and monocline zone(zone F).At the back,decollement fault and detachment fold zone(zone F) was formed.In different deformation zones,horizontal displacement and compressive deformation,placement of thrust fault and fold,as well as tectonic trap types and preservation are all different,hence controlling petroleum accumulation and distribution of different types.
-
Key words:
- progressive deformation /
- thrust fault /
- folds /
- Yangtze Plate /
- Sourh China
-
[1] Suppe J.Geometry and kinematics of faultbend folding[J].American Journal of Science,1983,283(7):684~721 [2] Suppe J,Medwedeff D A.Fault-propagation folding[J].Geological Society of America Abstracts with Programs,1984,16:670 [3] Cooper M A.Passive-roof duplexes and pseudo-passive roof duplexes at mountain fronts:a review[J].Bulletin of Canadian Petroleum Geology,1996,44(2):410~421 [4] Jamison W R.Mechanical stability of the triangle zone:the backthrust wedge[J].Jounal of Geophysical Research,1993,98(10):20015~20030 [5] Jamison W R.Mechanical models of triangle zone evolution[J].Bulletin of Canadian Petroleum Geology,1996,44(2):180~194 [6] 朱志澄.逆冲推覆构造研究进展和今后探索趋向[J].地学前缘,1995,2(1-2):151~57 [7] 孙肇才,郭正吾.中国南方古、中生界海相油气勘查研究[M].北京:科学出版社,1993.1~20 [8] 张渝昌,秦德余,汤福生等.江南-雪峰地区的层滑作用及多期复合构造[M].北京:地质出版社,1993 [9] 朱夏.朱夏论中国油气盆地构造[M].北京:石油工业出版社,1986.61~70 [10] 朱夏.关于中国大陆边缘构造演化[J].海洋地质与第四纪地质,1987,7(3):115~119 [11] 丁道桂,郭彤楼,胡明霞等.论江南-雪峰基底拆离式构造:南方构造问题之一[J].石油实验地质,2007,29(2):120~127 [12] 丁道桂,朱樱,陈凤良等.中下扬子区古生代盆地基底拆离式改造与油气领域[J].石油与天然气地质,1991,12(4):376~384 [13] 丁道桂.基底拆离与多层次盖层滑脱的盆地改造作用[A].见:孙肇才,张渝昌编.中国油气盆地分析:朱夏学术思想研究论文集[G].北京:石油工业出版社,1993.153~159 [14] 丁道桂,郭彤楼,翟常博等.鄂西-渝东区膝折构造[J].石油实验地质,2005,27(3):205~210 [15] Faill R T.Kink band structures in Valley and Ridge Province,central Peensylvarnia[J].Geological society of Ametica Bullein,1969,80:2539~2550 [16] 郑亚东,王涛,王新社.新世纪构造地质学与力学新理论:最大有效力距准则[J].自然科学进展,2005,15(2):142~148 [17] 郭正吾,邓康龄,韩永辉等.四川盆地形成与演化[M].北京:地质出版社,1996.24~47 [18] 孙岩,施泽进,沈修志.层滑-倾滑断裂构造与油气地质研究[M].南京:南京大学出版社,1991 -
计量
- 文章访问数: 741
- HTML全文浏览量: 59
- PDF下载量: 645
- 被引次数: 0