The cooperative Russian-Chinese morphostructural investigations have been carried out during the last several years along the transregional fault zone-Songhua-Huanghe Lineament, which is stretching from the lower Huan...The cooperative Russian-Chinese morphostructural investigations have been carried out during the last several years along the transregional fault zone-Songhua-Huanghe Lineament, which is stretching from the lower Huanghe (Yellow) River across the Bohai Sea to Liaohe-Songhua and further along the lower Amur River to North Sakhalin (more than 3000 km). It is the wide fault zone (some hundred km) that has been created in Paleozoic or Precambrian. The series of morphostrucures of central type (MCF) or "ring-morphostructures" have been identified here. They are from 500 - 800 km to 20 - 30 km in diameter, and have different structure, age, origin, morphology and geological history. MCT are principal modern structural elements of the earth’s crust and the study on them are producing new geological-geomorphological data and new ideas about structure and evolution of the region. MCT was created in Precambrain-Phanerozoic and experienced repeatedly tectonic-magmatic activation during their long-term history. Amur -Songhua-Huanghe Lineament is a seismic active linear structure both in China and in Russia, especially in the areas of intersections with deep faults of gigantic MCT of East Asia. The authors propose that a continental margin extension process, continuing from Paleozoic (Precambrian?) is a major factor in the morphostructural development of the Amur-Songhua-Huanghe Lineament. The received materials may be used for investigations in prospecting geology and geomorphology, studies on natural resources and for decision of other applied problems.展开更多
Based on the collection of active fault slip rate data of large intra-continental shallow thrust earthquakes occurring in the triangular seismic region of the East Asia continent,a preliminary analysis has been perfor...Based on the collection of active fault slip rate data of large intra-continental shallow thrust earthquakes occurring in the triangular seismic region of the East Asia continent,a preliminary analysis has been performed with results showing that the Wenchuan,Sichuan, China earthquake ( MS = 8.0) of May 12,2008 occurred on the Longmenshan Mountain active fault with an abnormally low slip rate.展开更多
文摘The cooperative Russian-Chinese morphostructural investigations have been carried out during the last several years along the transregional fault zone-Songhua-Huanghe Lineament, which is stretching from the lower Huanghe (Yellow) River across the Bohai Sea to Liaohe-Songhua and further along the lower Amur River to North Sakhalin (more than 3000 km). It is the wide fault zone (some hundred km) that has been created in Paleozoic or Precambrian. The series of morphostrucures of central type (MCF) or "ring-morphostructures" have been identified here. They are from 500 - 800 km to 20 - 30 km in diameter, and have different structure, age, origin, morphology and geological history. MCT are principal modern structural elements of the earth’s crust and the study on them are producing new geological-geomorphological data and new ideas about structure and evolution of the region. MCT was created in Precambrain-Phanerozoic and experienced repeatedly tectonic-magmatic activation during their long-term history. Amur -Songhua-Huanghe Lineament is a seismic active linear structure both in China and in Russia, especially in the areas of intersections with deep faults of gigantic MCT of East Asia. The authors propose that a continental margin extension process, continuing from Paleozoic (Precambrian?) is a major factor in the morphostructural development of the Amur-Songhua-Huanghe Lineament. The received materials may be used for investigations in prospecting geology and geomorphology, studies on natural resources and for decision of other applied problems.
基金Funded as a sub-project entitled"Tectonic Patterns of Strong Earthquakes in the Central Asia Continent and Its Dynamic Setting(2008CB425703)"within the project"A Study on the Occurrence Mechanism of the Wenchuan Earthquake and Its Large-scale Regional Dynamic Setting" under the National Key Basic R & D Program (973 Program),China
文摘Based on the collection of active fault slip rate data of large intra-continental shallow thrust earthquakes occurring in the triangular seismic region of the East Asia continent,a preliminary analysis has been performed with results showing that the Wenchuan,Sichuan, China earthquake ( MS = 8.0) of May 12,2008 occurred on the Longmenshan Mountain active fault with an abnormally low slip rate.
