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Characteristics of Late Quaternary Activity of the Gade Segment in the Madoi-Gadê Fault Zone
  • ISSN号:0891-4176
  • 期刊名称:《中国地震研究:英文版》
  • 时间:0
  • 分类:P534.63[天文地球—第四纪地质学;天文地球—古生物学与地层学;天文地球—地质学] P542.3[天文地球—构造地质学;天文地球—地质学]
  • 作者机构:[1]Institute of Earthquake Science, CEA, Beijing 100036, China, [2]Earthquake Administration of Qinghai Province, Xining $10001, China
  • 相关基金:This project was supported by the National Basic Research Program (973 program) of China ( Grant No. 2008CB425701 ).
中文摘要:

Madoi-Gade 差错是在 Bayan Har 块的一个活跃差错。根据地调查,有表面破裂很好相当在 Madoi-Gade 差错地区的 Gade 片断上保存了的地震。破裂的长度是近似 50km,与 NW 的一个一般罢工。最大的水平左首的排水量关于 7.6m,最大的垂直排水量关于 4m。很多地震踪迹将沿着破裂地区被成立,并且表面上的现象破裂也是各种各样的。地调查和分析在上地质并且 geomorphological 现象证明表面的形成年龄破裂是相对年轻的。一系列线性安排、三角形的方面,差错陡坡,差错弹簧,打乱的溪谷,扭曲的山山脉,下垂池溏,打乱的山脉,等等沿着差错存在。基于地调查和可得到的数据的分析,我们相信表面破裂由于这个区域的历史上的强烈地震。并且自从,在 Bayan Har 块以内的 Madoi- Gade 差错是高度活跃的,这被推断晚第四级并且现在可能仍然活跃。

英文摘要:

Madoi-Gade fault is an active fault in the Bayan Har block. According to field investigation, there is an earthquake surface rupture fairly well preserved on the Gade segment of the Madoi-Gade fault zone. The length of the rupture is approximately 50km, with a general strike of NW. The maximum horizontal sinistral displacement is about 7.6m and the maximum vertical displacement is about 4m. A large number of earthquake traces are to be found along the rupture zone, and the phenomena on the surface rupture are also various. Field investigation and analysis on the geological and geomorphological phenomena show that the formation age of the surface rupture is relatively young. A series of linear arranged, triangular facets, fault scarps, fault springs, dislocated gullies, twisted mountain ridges, sag-ponds, dislocated ridges, etc. exist along the fault. Based on the analysis of field investigation and the data available, we believe that the surface rupture is due to a strong earthquake in the history of this area. And it is inferred that the Madoi- Gade fault within the Bayan Har block has been highly active since Late Quaternary and may still be active nowadays.

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期刊信息
  • 《中国地震研究:英文版》
  • 主管单位:中国地震局
  • 主办单位:中国地震台网中心
  • 主编:陈颙
  • 地址:西城区三里河南横街5号中国地震台网中心
  • 邮编:100045
  • 邮箱:erc19871@163.com
  • 电话:010-59959419 59959420
  • 国际标准刊号:ISSN:0891-4176
  • 国内统一刊号:ISSN:11-2009/P
  • 邮发代号:
  • 获奖情况:
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  • 被引量:39