List of Chinese fault zones

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This is a list of Chinese fault zones ( Chinese  断裂带 , Pinyin duanlie dai , English fault zone ). These geological faults separate China's various tectonic units. Movements that can lead to earthquakes are still taking place in them today , such as the 2008 Sichuan earthquake , which was caused by the Longmenshan Fault on the western edge of the Sichuan Basin .

History of exploration

The importance of geological fault zones for China, which is often hit by strong earthquakes , is evident due to the displacements of the earth's surface that they cause. Systematic investigations began after initial work in the 1920s and 1930s around 1960. After several devastating earthquakes between 1960 and 1976, the first map of the active faults and earthquake zones was published in 1979. Since then, numerous attempts have been made to understand the activity of the fault zones in China, and numerous scientific papers appeared on the subject in the 1990s. This work was summarized in a map of the active tectonics of China on a scale of 1: 4,000,000, which appeared in 2003 together with an explanatory volume.

Tectonic division

The active faults in China are classified into five provinces of active tectonics according to their activity and geological environment. Based on characteristic differences in their activity in the Quaternary , these are the tectonic province of Tibet , the tectonic province of Xinjiang-Uyghur , northeast China , northern China, and southern China . The last two tectonic provinces are not significantly affected by active disturbances.

Tectonic Province of Tibet and Southwest China

The Tibetan Plateau and southwest China is from the collision of the Indian with the Eurasian Plate affected. Here come two major types of distortions on, thrust szonen and slip faults .

The following faults are counted among the thrusts:

The following faults are counted among the blade shifts:

In the southwest, in the extension of the Karakorum-Jiali fault zone, a large, complex movement zone extends from northwest to southeast over 1,400 km from Qinghai to southern Yunnan , the Kangding fault zone ( Xichang-Yunnan fold belt according to Ryder 1994). It is made up of individual leaf displacements; significant left-sided horizontal displacements have taken place on it. It includes numerous fault zones that delimit individual areas of the earth's crust . The five most important are:

Individual parts of this zone are given slightly different names, for example

  • Xianshuihe-Anninghe-Zemuhe Fault ( 鲜 水河 、 安宁 河 、 则 木 河 断裂带 )
  • Anninghe-Zemuhe Fault ( 安宁 河 、 则 木 河 断裂带 )
  • Xianshuihe-Anninghe-Zemuhe Fault ( 鲜 水河 、 安宁 河 、 则 木 河 断裂带 )
  • Anninghe-Zemuhe-Xiaojiang fault zone ( 安宁 河 - 则 木 河 - 小 江 地震 带 , English Anninghe-Zemuhe-Xiaojiang fault zone )
  • Zemuhe-Xiaojiang fault zone ( 则 木 河 一 小 江 地震 带 , English Zemuhe-Xiaojiang fault zone ).

Other fault zones in this part of China are:

  • Chenghai Fault ( 程 海 断裂带 ), named after Lake Cheng Hai ( 程 海 ) in Yongsheng County , Yunnan
  • Dali fault ( 大理 断裂带 )
  • Haiyuan disorder ( 海原 断裂带 )
  • Heqing-Eryuan Fault ( 鹤庆 - 洱源 断裂带 )
  • Litang rejection ( 理塘 断裂带 )
  • Lijiang Qinghe Fault ( 丽江 - 箐 河 断裂带 )
  • Longling-Ruili fault ( 龙陵 - 瑞丽 断裂 )
  • Lushui Fault ( 泸水 断裂带 )
  • Luzhijiang Fault ( 绿 汁 江 断裂带 )
  • Menglian Fault ( 孟连 断裂带 )
  • Muli Fault ( 木 里 断裂带 ) (Muli-Yanyuan earthquake area 木 里 - 盐源 地震 区 )
  • Nantinghe Fault ( 南汀 河 断裂带 )
  • Puduhe Fault ( 普 渡河 断裂带 ), named after the Pudu He (普 渡河) river
  • Red River Fault ( 红河 断裂带 )
  • Shimian Fault ( 石棉 断裂 , also called Nanyahe Fault 南 垭 河 断裂 )
  • Shiping Jianshui Fault ( 石 屏 一 建 水 断裂带 )
  • Tongdian-Weishan Fault ( 通 甸 - 巍山 断裂带 )
  • Wanning fault ( 畹 町 断裂带 )
  • Zhongdian Fault ( 中甸 断裂带 )
  • Zhoucheng Qingshui Fault ( 周 城 - 清水 断裂带 )

Xinjiang Uyghur Tectonic Province

  • Keketuohai Ertai Disorder / Koktokay Ertai Disorder ( 可可 托海 - 二 台 断裂带 )
  • Boluokenu disorder ( 博罗 可 努 断裂 )

Northeast China

  • Hetao fault zone
  • Shaanxi fault zone
  • Consecration fault zone
  • Yinchuan-Jilantai Fault Zone
  • Tancheng-Lujiang fault zone 郯 城 - 庐江 断裂带 (abbreviation Tan-Lu fault zone 郯 庐 断裂带 )

Other active fault zones and faults

See also

Individual evidence

  1. ↑ Deng Qidong et al .: Basic characteristics of active tectonics of China . In: Science in China Series D: Earth Sciences . 46, No. 4, April 2003. doi : 10.1360 / 03yd9032 (currently unavailable)
  2. ↑ a b Honglin He and Eikichi Tsukada: Recent Progresses of Active Fault Research in China Archived from the original on December 22, 2005. Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. In: Journal of Geography . 112, No. 4, 2003, pp. 489-520. Retrieved May 20, 2008. @1@ 2Template: Webachiv / IABot / www.geog.or.jp
  3. ↑ E. Kirby et al .: Late Cenozoic evolution of the eastern margin of the Tibetan Plateau: Inferences from 40Ar / 39Ar and (U-Th) / He thermochronology ( en ) American Geophysical Union. 2002. Retrieved May 18, 2008.
  4. ↑ Alexander L. Densmore et al .: Active Tectonics and Erosional Unloading at the Eastern Margin of the Tibetan Plateau . In: Journal of Mountain Science . 2, No. 2, 2005, pp. 146-154.
  5. ^ RT Ryder et al .: Petroleum geology of the Sichuan basin, China; report on US Geological Survey and Chinese Ministry of Geology and Mineral Resources field investigations and meetings, October 1991 . In: USGS Open-File Report 94-426 . 1994, p. 67.
  6. ↑ H. Yao: Modeling crustal channel flow, crustal deformation and anisotropy with application to the Tibetan Plateau ( en ) Archived from the original on May 17, 2008. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved May 14, 2008. @1@ 2Template: Webachiv / IABot / web.mit.edu
  7. ↑ Honglin He and Jinwei Ren: Holocene earthquakes on the Zemuhe Fault in Southwestern China . In: Annals of Geophysics . 46, No. 5, October 2003.

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