East Marginal Fault of the Yellow Sea:a part of the conjunction zone between Sino-Korea and Yangtze Blocks?
【摘要】:正The conclusions of most previous studies on the eastward extension of the collision zone between the Sino-Korean and Yangtze Blocks can generally be divided into two categories: (1) the collision zone is connected to the Imjingang belt and crosses the Korean Peninsula;(2) the eastward extension of the collision zone does not enter the Korean Peninsula,nor is connected to the Imjingang belt.Recent geophysical studies on gravity and velocity tomography in the Yellow Sea and adjacent regions,respectively,have provided geophysical evidence for a nearly northsouth -trading dextral strike-slip fault in the eastern margin of the Yellow Sea,which we have named the East Marginal Fault of the Yellow Sea(EMFYS).The geophysical evidence indicates that the EMFYS extends to great depth.It dips westward,and within 100 km depth the dip angle is very steep.The geophysical characteristics on its two sides show that they belong to different tectonic units.This fault is connected to the Wulian-Qingdao Fault in the north,and to the South Marginal Fault of Jeju Island(SMFJI) in the south(the SMFJI is a part of the collision zone). Therefore the EMFYS is considered as a part of the junction zone between the Sino-Korea and Yangtze Blocks,with the Korean Peninsula being part of the Sino-Korea Block.In the Late Triassic,it is inferred that dextral strike-slip movement took place on the EMFYS,and in the same geological period sinistral strike-slip took place on the Tan-Lu Fault Zone.Under northsouth tectonic stress the Yangtze Block was translated northward and inserted into the Sino-Korea Block.Therefore the junction zone between the two blocks formed a gigantic Z-shaped tectonic belt.According to the gravity data and seismic tomography it is also inferred in this paper that the junction zone between the Yangtze and Cathaysia Blocks extends from the Jiangshao Fault eastward to the southern edge of the Hida Block,Japan.
|
|
|
|
1 |
郝天珧,刘建华,王谦身,Suh. Mancheol,戴明刚,阎晓蔚;对下扬子与华南边界结合带东延问题的地球物理探讨[J];地球物理学进展;2003年02期 |
2 |
王谦身,刘建华,郝天珧,Suh. Mancheol,戴明刚;南黄海南部与东海北部之间的深部构造[J];地球物理学进展;2003年02期 |
3 |
郝天珧,SUH Mancheol,王谦身,CHOI Suckwon,江为为,宋海斌,阎晓蔚,刘建华,姚长利;根据重力数据研究黄海周边断裂带在海区的延伸[J];地球物理学报;2002年03期 |
4 |
郝天珧,刘建华,Suh Mancheol,Choi Suckwon,阎晓蔚,刘振峰;黄海及其邻区深部结构特点与地质演化[J];地球物理学报;2003年06期 |
5 |
郝天珧;徐亚;胥颐;Suh Mancheol;刘建华;戴明刚;李志伟;;对黄海—东海研究区深部结构的一些新认识[J];地球物理学报;2006年02期 |
6 |
胥颐;刘建华;郝天珧;刘劲松;李志伟;;中国东部海域及邻区岩石层地幔的P波速度结构与构造分析[J];地球物理学报;2006年04期 |
7 |
袁学诚,徐明才,唐文榜,王庆海;东秦岭陆壳反射地震剖面[J];地球物理学报;1994年06期 |
8 |
万天丰;中朝与扬子板块的鉴别特征[J];地质论评;2001年01期 |
9 |
袁学诚;秦岭造山带地壳构造与楔入成山[J];地质学报;1997年03期 |
10 |
杨志坚;胶东地块构造演化及其东延去向问题[J];海洋地质与第四纪地质;1989年02期 |
|
|
|
|
|
1 |
杨宝俊,张兴洲,孟令顺,吴福元,孙晓猛,孙加鹏,刘财,冯日亘;中国大陆岩石圈结构篱笆图及其说明——10条GGT地球物理资料[J];长春科技大学学报;2001年04期 |
2 |
朱介寿;我国大陆地壳及上地幔分块结构特征[J];成都地质学院学报;1986年01期 |
3 |
李曙光,张宗清;华北太古代上地幔钕同位素组成、演化及对该区岩石圈地幔不均一性的制约[J];地球化学;1990年04期 |
4 |
张宏飞,张本仁,凌文黎,高山,欧阳建平;南秦岭新元古代地壳增生事件:花岗质岩石钕同位素示踪[J];地球化学;1997年05期 |
5 |
高山,张本仁;扬子地台北部太古宙TTG片麻岩的发现及其意义[J];地球科学;1990年06期 |
6 |
张玲华,李正祥;扬子古大陆与澳大利亚古大陆新元古代层序对比和古大陆再造[J];地球科学;1995年06期 |
7 |
张宏飞,欧阳建平,凌文黎,周炼,许继锋;从Pb同位素组成特征论东秦岭陡岭块体的构造归属[J];地球科学;1996年05期 |
8 |
栾锡武,高德章,喻普之,赵津海;中国东海及邻近海域一条剖面的地壳速度结构研究[J];地球物理学进展;2001年02期 |
9 |
刘光鼎;中国海地球物理场特征[J];地球物理学进展;2002年01期 |
10 |
郝天珧,刘建华,宋海斌,胥颐;华南及其相邻边缘海域一些重要断裂的地球物理证据[J];地球物理学进展;2002年01期 |
|
|
|
|
|
1 |
孟自芳,黄华芳,陈延章,Robert S.Coe;酒西盆地晚二叠世古地磁极及其大地构造意义[J];沉积学报;1990年03期 |
2 |
;[J];;年期 |
3 |
;[J];;年期 |
4 |
;[J];;年期 |
5 |
;[J];;年期 |
6 |
;[J];;年期 |
7 |
;[J];;年期 |
8 |
;[J];;年期 |
9 |
;[J];;年期 |
10 |
;[J];;年期 |
|
|
|
|
|
1 |
Mohamed Mhmod;[D];吉林大学;2012年 |
|