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Neotectonic Features And Activity Analysis Of Mingshan-Pujiang Region In SiChuan

Posted on:2012-08-28Degree:MasterType:Thesis
Country:ChinaCandidate:H W LiFull Text:PDF
GTID:2210330338968098Subject:Structural geology
Abstract/Summary:PDF Full Text Request
Mingshan - Pujiang tectonic region located in the East of the NE direct Longmen Shan tectonic belt and the north of NS direct Sichuan and Yunnan tectonic belt.The first tectonic units belong to the western of Yangtze Block, the secondarystructural units located in the western Sichuan foreland basin. Mingshan - Pujiangarea is in the transfer of two tectonic zone location, next to the geological stabilityregions - Chengdu Basin. Neotectonic is active. In geology, geomorphology, waterchanges, Terraces, seismic activity of tectonic movement has new traces. It directlyreflects the new tectonic movement in this area characteristics and patterns of tectonicmovement is the evolution of the new foundation. Research in the region provideguidance for further research of the Chengdu Plain stability and the SiChuan-YunnanNS tectonic belt and Longmen Shan beltSichuan Mingshan - Pujiang area formed terraces, planation surface, rivercapture and drainage changes, the main characteristics of active faults in thedeformation, geomorphology, ground construction, seismic activity and so on.Data collected by this study important routes and regional geological survey,from macro to micro systematic collection of land (rock), rock, landform distribution,characteristics and changes, deformation and deformation of structural geometry andgeological events and evolutionary sequence. ESR dating methods used on mountainrivers in order to test the age of samples, analysis using remote sensing interpretationRiver Mountain region changes. Then combine the results of field surveys to becompared on the study to determine the activities of a relatively accurate age, andwater changes, the formation of planation surfaces, river capture the occurrence oftectonic movement and other new developments, and detailed description of theinduction characteristics of active faults in the region and the distribution of law.The paper also identified the Mingshan- Pujiang characteristics of seismicactivity, seismic activity in the area initially to grasp the basic rules of seismic activity and tectonic fault activity within the new relationship. From the regional geologicalbackground, to understand the regional structure, etc. The most important one in theregion fault - Baiyun (Xiongpo) features of geological structure of fault, the focus ofits activity, and the active fault on the Mingshan - Pujiang region and the ChengduPlain effects. Provide evidence to Chengdu Basin and the Sichuan-Yunnan near thefault zone and fault zone.
Keywords/Search Tags:Mingshan, Pujiang, water changes, terraces, Baiyun fault, Neotectonic, active tectonic
PDF Full Text Request
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