[1]WANG Ying,JIN Jialiang,YUAN Renmao.Analysis on Spatial Distribution and Influencing Factors of Geological Disasters in Southeast Tibet[J].Journal of Seismological Research,2019,42(03):428-437.
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Analysis on Spatial Distribution and Influencing Factors of Geological Disasters in Southeast Tibet
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 03
Page number:
428-437
Column:
Public date:
2019-07-24
- Title:
- Analysis on Spatial Distribution and Influencing Factors of Geological Disasters in Southeast Tibet
- CLC:
- P315.94
- DOI:
- -
- Abstract:
- Based on interpretation of geological hazards and previous reported research results,we analyzed the distribution characteristics,development laws and influencing factors of geological disasters,such as collapses,landslides and debris flows in Southeast Tibet. The results show that geological disasters characterized by inhomogeneity and sectional clustering are mainly distributed in northern part of Yarlung Zangbo River and the north and south sides of the “Three-Rivers”(Jinsha River,Lancang River and Nu River). Many factors including active fault,lithology,topography and human activities influenced the development and spatial distribution of geological disasters in Southeast Tibet. The geological hazards are concentrated in the areas featured with alpine-gorge landforms and the strong incising region of river,the zones with harder rocks mainly consist of marble,slate,dolomite,limestone,calcareous sandstone and ultrabasic rocks,and hard-weaker rocks mainly consist of schist and gneiss,and the region distribute fault zones and strong tectonic activities,and areas affected by strong human activities,such as along major highways,etc.
- References:
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- Similar References:
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Last Update:
2019-07-24