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吉林省前郭县哈拉毛都一带新构造运动 被引量:4
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作者 翟玉春 陈惠鹏 +1 位作者 任军丽 周亚杰 《吉林地质》 2009年第3期6-10,共5页
本文描述了哈拉毛都松花江两岸的地质地貌景观。松花江北岸直型谷坡,坡陡,高差近100 m,绵延数十公里,是典型的断层崖;南岸破碎的地形、阶梯状谷坡、冲沟、冲沟中的丹霞地形正在发生发展的地裂缝、断层和滑坡,这一切与松花江南岸不断隆... 本文描述了哈拉毛都松花江两岸的地质地貌景观。松花江北岸直型谷坡,坡陡,高差近100 m,绵延数十公里,是典型的断层崖;南岸破碎的地形、阶梯状谷坡、冲沟、冲沟中的丹霞地形正在发生发展的地裂缝、断层和滑坡,这一切与松花江南岸不断隆起和松花江断裂继承性新构造运动有直接联系。 展开更多
关键词 前郭县哈拉毛都 新构造动动 滑坡
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The Effect of Active Tectonic to Morphology of Alluvial Fan of Shahdad in Kerman-lran 被引量:1
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作者 Somayeh Sadat shaahzeidi Mojgan Entezari 《Journal of Earth Science and Engineering》 2014年第3期141-145,共5页
The alluvial fan of the Shahdad in Derakt-Tangan River is one of the biggest alleviation in total dry area in the north eastern Kerman. This alluvial fan is formed effected by different materials erosion in drainage b... The alluvial fan of the Shahdad in Derakt-Tangan River is one of the biggest alleviation in total dry area in the north eastern Kerman. This alluvial fan is formed effected by different materials erosion in drainage basin of Derakt-Tangan River and laying these materials in the final part of this drainage basin called Lut. Tectonics activate with efficacy in the place of the settlement of the alluvial fan. The region, which is being studied, is one of the active tectonic regions. The severe tectonic activities in the studying region have been proved by several observations. One of the most important evidences in the region is the various faults in the area and implies to fan alluvium (from head to end), study line profile in past and present. The most important fault of the region is the great fault of "Nay band", the southern fault of Shahdad and the series of faults having the direction of north-western to south-eastern and northern and southern. The drainage basin of alluvial fan of the Derakt-Tangan River leads from east to Kavir-lut, from west to the Baghe-Bala Mountains and Kalisaky from The aim of this article is the morphology of Derakt-Tangan north to the altitutes of Dahran and from south to the mountains of Jeffan river fan indicative on neotectonics in the region. 展开更多
关键词 Alluvial fan of the Shahdad active tectonic morph of fan effect of faults.
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Late Quaternary Activity and Paleoearthquakes along the Nanyukou Segment of the Northern Piedmont Fault of Wutai Mountain
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作者 Ding Rui Ren Junjie Zhang Shimin 《Earthquake Research in China》 2010年第1期82-96,共15页
The northern piedmont fault of Wutai Mountain is located at the north of the Shanxi Graben system, which is the dominating fault of the south boundary of the Fanshi-Daixian depression. This paper discusses the fault a... The northern piedmont fault of Wutai Mountain is located at the north of the Shanxi Graben system, which is the dominating fault of the south boundary of the Fanshi-Daixian depression. This paper discusses the fault activity and paleoearthquakes around the Nanyukou segment of the northern piedmont fault of Wutai Mountain during the late Quaternary through field investigation along the fault, measuring geomorphic deformation and excavating trenches at some important sites. From Nanyukou to the southwest of Shanhui, we find obviously dislocated alluvial fans, with strong neotectonic movement at these sites. Since nearly 20ka, the vertical average slip rate is 1.55mm/a to 2.0mm/a. However,since nearly 6ka,it has reached as high as 2.3mm/a, which is twice that on other segments. 2 trenches were excavated around Nanyukou with 6 events discovered. The referenced ages of the events are before 7600a, 6700a - 7600a, 5321a - 5575a, 4400a - 5400a,420Oa-4400a and after 1600a B.P. with approximate recurrence interval 1400a. The latest event is likely to be the earthquake occurring at 512 A. D. ,so it is necessary to do further work to verify this in the future. 展开更多
关键词 The northern piedmont fault of the Wutai Mountain Late Quaternary Fault scarp PALEOEARTHQUAKE Slip rate
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Geometric Structure and Tectonic Activities of Wanquan Fault,Hebei Province
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作者 Zhou Jianglin You Huichuan +4 位作者 Zhou Yueling Shao Cuiru Yang Qiyan Li Jinjin Zhang Zhengyu 《Earthquake Research in China》 2013年第2期223-232,共10页
Based on detailed investigations and prospecting,this paper describes the geometrical characteristics and tectonic activities of Wanquan fault in northwest of Beijing. This fault strikes mainly northeast or northeast ... Based on detailed investigations and prospecting,this paper describes the geometrical characteristics and tectonic activities of Wanquan fault in northwest of Beijing. This fault strikes mainly northeast or northeast to north,dipping southeast,and extends over a length of 15km. It is a major geological and geomorphological margin,controlling the neotectonic movement in this region. On the southeast side of Wanquan fault are the Late Quaternary unconsolidated deposits,forming a basin or deposition; but on the other side is Mesozoic volcano debris,forming lower-mountains and hills. Wanquan fault is a mid- to-high-angle normal fault dipping southeast. This fault was more active in the Quaternary. Since the middle-late part of the alate Pleistocene,the average rate with vertical slip of a single fault is over 0. 03 ~ 0. 3mm /a,but the fault has multiple slipping surfaces,and a total rate with vertical slip will be estimated. 展开更多
关键词 Wanquan fault Geometric structure Tectonic activities
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Control of differential tectonic evolution on petroleum occurrence in Bohai Bay Basin 被引量:16
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作者 TENG ChangYu ZOU HuaYao HAO Fang 《Science China Earth Sciences》 SCIE EI CAS 2014年第5期1117-1128,共12页
The Bohai Bay Basin(BBB)is the most petroliferous Cenozoic basin in the east of China.It consists of seven depressions.Each depression has been subjected to different stress states and then has experienced varying fau... The Bohai Bay Basin(BBB)is the most petroliferous Cenozoic basin in the east of China.It consists of seven depressions.Each depression has been subjected to different stress states and then has experienced varying faulting processes since the Neogene,especially during the Neotectonism(from the Pliocene to the present).On the basis of the investigation of fault patterns,fault densities and fault activity rates(FARs)for each depression,this paper demonstrates the discrepancy of faulting development and evolution across the BBB.The dynamic mechanism for the differences in faulting is also discussed by the analysis of the regional stress state.The Bozhong Depression is just situated in the transtensional zone induced by the two active strike-slip faults,namely Yingkou-Weifang and Beijing-Penglai.In this depression,the major faults which cut through the Paleogene or the Cenozoic have had higher than 10 m/Ma FARs since the Neogene,and the highest FARs have reached or exceeded 25 m/Ma during the Neotectonism.As a result,most of the petroleum has migrated along these major faults and accumulated within the Neogene.In contrast,in the other depressions of the BBB away from the Bozhong Depression,the FARs of the major faults were decreased to lower than 10 m/Ma since the Neogene,and tended to be zero during the Neotectonism.Therefore,the major faults could not serve as vertical conduits for petroleum migration,and the petroleum was entrapped in the Paleogene.Consequently,the faulting since the Neogene,especially during the Neotectonism,controlled the petroleum richness in vertical strata. 展开更多
关键词 vertical petroleum occurrence differential regional stress field differential fault activity Neotectonism Bohai Bay Ba-sin
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Neotectonic activity and formation mechanism of the Yishu Fault Zone 被引量:18
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作者 YAN LeJia ZHU Guang +1 位作者 LIN ShaoZe ZHAO Tian 《Science China Earth Sciences》 SCIE EI CAS 2014年第4期614-629,共16页
On the basis of comprehensive analyses of fault textures and geometry,the active methods,stress field,mechanism and time of the Yishu Fault Zone during the neotectonic period are discussed in this paper.The results sh... On the basis of comprehensive analyses of fault textures and geometry,the active methods,stress field,mechanism and time of the Yishu Fault Zone during the neotectonic period are discussed in this paper.The results show that the Yishu Fault Zone is a major mobile belt since the Quaternary.It consists of four major active faults with reverse dextral slip.Their active intensity increases eastwards and southwards.Fault-slip data from many active faults in the fault zone demonstrate that ENE-WSW compression predominated in the neotectonic period.Detailed field investigation shows that formation mechanism of shallow,active faults in the Yishu Fault Zone includes direct boundary fault reactivity,buried fault propagation,and reactivity of antithetic and truncating faults.In most cases,shallow,active faults in the fault zone are developed through direct reactivity or upward propagation of the previous four graben boundary faults. 展开更多
关键词 Yishu Fault Zone active fault structural features stress field formation mechanism
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