[1]ZHOU Qingyun,ZHANG Peiquan,LI Jianlin,et al.Research on Characteristics of Late Quaternary Activity of the North Wenshan-Malipo Fault[J].Journal of Seismological Research,2016,39(03):386-396.
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Research on Characteristics of Late Quaternary Activity of the North Wenshan-Malipo Fault
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
39
Number of periods:
2016 03
Page number:
386-396
Column:
Public date:
2016-07-23
- Title:
- Research on Characteristics of Late Quaternary Activity of the North Wenshan-Malipo Fault
- CLC:
- P315.2
- DOI:
- -
- Abstract:
- Combined the new interpretation of aerial photos with the field geological survey, we investigated the seismic geological characteristic of the northern section of Wenshan-Malipo Fault(Wen-Ma Fault). The interpretation results showed that there is the clear active tectonic geomorphology along the fault, which was mainly manifested as fault scarps, fault basin, river system synchronous dextral dislocations etc.. The linear features on the image are very clear and straight, forming the boundaries between Wenshan basin and bedrock mountains. According to filed seismic geological survey results, we find that the fault in Reshuizhai disrupts T2 accumulation terrace, and the Optically Stimulated Luminescence(OSL)dating of the disrupted strata suggests an age of(18.1±0.5)ka B.P.. While in the area of the distace of 5 km to the north of Wenshan basin, the radiocarbon dating(14C)of the disrupted T2 accumulation terrace shows an age of(15.67±0.05)ka B.P.. In conclusion, the Wen-Ma Fault has clear signs of activities in the late Pleistocene, which is dominated by dextral strike slip with normal slip component.
- References:
- -
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Last Update:
1900-01-01