IMHE OpenIR  > Journal of Mountain Science  > Journal of Mountain Science-2016  > Vol13 No.5
GiT-based structural geologic feature analysis of the southern segment of Longmenshan fault zone for earthquake evidence
Ye Cheng-ming1,2; Cui Peng1; Pirasteh, Saied3; Li, Jonathan3; Meng Qingkai2; Bi Xiao-jia4; Zhang Jian-qiang1
Corresponding AuthorSaied PIRASTEH
AbstractThe Longmenshan fault is a thrust fault which runs along the base of the Longmen Mountains in Sichuan province, southwestern China. The southern segment of the fault had two distinct responses to the Ms 8 Wenchuan and Ms 7 Lushan earthquakes. This study determines characteristics of the structural geology of the Longmenshan fault to evaluate how it influenced the two aforementioned earthquakes. This research was done within a Geo-information Technologies (GiT) environment based on multi-source remote sensing and crustal movement data extracted from the Global Positioning System (GPS). The spatial distribution of the southern segment of the Longmenshan fault zone was comprehensively analyzed to study both earthquakes. The study revealed that the Wenchuan and Lushan earthquakes occurred on two relatively independent faults. In addition, there was a nearly constant-velocity crustal movement zone between the two epicenters that probably had a compressive stress with slow motion. Furthermore, the central fault and a mountain back fault gradually merged from north to south. The Lushan earthquake was not an aftershock of the Wenchuan earthquake. The research showed that fault zones within 30-50 km of State Highway 318 are intensive and complex. In addition, crustal movement velocity decreased rapidly, with a strong multi-directional shear zone. Thus, activity in that zone was likely stronger than in the northern part over the medium to long term.
KeywordLongmenshan Fault Zone Geoinformation Technologies (Git) Remote Sensing (Rs) Earthquake Crustal Movement
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS Subject ExtendedEnvironmental Sciences & Ecology
Indexed BySCI
WOS SubjectEnvironmental Sciences
WOS IDWOS:000375790800013
Funding OrganizationNational Natural Science Foundation of China(41001253) ; Chinese Postdoctoral Science Foundation(2012M521717) ; National Science and Technology Major Project(03-Y30B06-9001-13/15)
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
CollectionJournal of Mountain Science_Journal of Mountain Science-2016_Vol13 No.5
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
2.Chengdu Univ Technol, Key Lab Earth Explorat & Informat Technol, Minist Educ, Chengdu 610059, Peoples R China
3.Univ Waterloo, Fac Environm, Dept Geog & Environm Management, Waterloo, ON N2L 3G1, Canada
4.Chengdu Earthquake Mitigat Bur, Chengdu 610042, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Ye Cheng-ming,Cui Peng,Pirasteh, Saied,et al. GiT-based structural geologic feature analysis of the southern segment of Longmenshan fault zone for earthquake evidence[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(5):906-916.
APA Ye Cheng-ming.,Cui Peng.,Pirasteh, Saied.,Li, Jonathan.,Meng Qingkai.,...&Zhang Jian-qiang.(2016).GiT-based structural geologic feature analysis of the southern segment of Longmenshan fault zone for earthquake evidence.JOURNAL OF MOUNTAIN SCIENCE,13(5),906-916.
MLA Ye Cheng-ming,et al."GiT-based structural geologic feature analysis of the southern segment of Longmenshan fault zone for earthquake evidence".JOURNAL OF MOUNTAIN SCIENCE 13.5(2016):906-916.
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