安丘—莒县断裂莒县盆地段浅层地震探测及意义

doi:10.11720/wtyht.2021.1187

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Abstract

Anqiu-Juxian fault in the Tanlu fault zone is in a concealed state in the Juxian basin.Geophysical data in the basin is very insufficient,and the distribution and spatial geometric characteristics of the fault are not clear.In view of such a situation,the buried faults in the basin were detected by shallow seismic reflection detection,and the distribution characteristics of Anqiu-Juxian fault in the basin were preliminarily discussed and analyzed in combination with the study of Zheng Chuanbei and other research results.The results show that the Anqiu-Juxian fault is located in the Quaternary sediments of Juxian basin,with relatively shallow burial depth.The fault is characterized by compressional thrust and positive fault in some sections.The shallow seismic reflection profile shows the new geophysical evidence of Anqiu-Juxian fault in Juxian basin and provides geophysical reference for the overall evaluation of the fault.

Key words： Tanlu fault zone Anqiu-Juxian fault seismic reflection Juxian basin

Received: 21 April 2020 Published: 27 July 2021

ZTFLH:

P631.4

Corresponding Authors: LIN Song E-mail: smilevivi0821@163.com;ls6102212@163.com

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	Wei WANG
	Song LIN
	Miao CHENG
	Chong JIN
	Hong-Wei ZHOU

Cite this article:

Wei WANG,Song LIN,Miao CHENG, et al. Shallow seismic exploration of the Anqiu-Juxian fault in Juxian Basin and its significance[J]. Geophysical and Geochemical Exploration, 2021, 45(3): 609-615.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1187 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I3/609

Regional geological structure diagram of the study area
fault number:①—Fushan fault;②—Cangni fault;③—Tongshi-Ganlin fault;④—Wensi fault;⑤—Mengshan piedmont fault;⑥—Xiazhuang-Anjiazhuang fault;⑦—Yangliudian fault;⑧—Xintai-Mengyin fault;⑨—Tongzhidian-Sunzudian fault;⑩—Mamuchi-Tongzhidian fault;?—Tangwu-Gegou fault;?—Yishui-Tangtou fault;?—Baifenzi-Fulaishan fault;?—Anqiu-Juxian fault;?—Changyi-Dadian fault;?—Xiangdi-Gaogezhuang fault
basin number:⑴—Lizhuang basin;⑵—Linyi basin;⑶—Banquan basin;⑷—Sucun basin;⑸—Juxian basin; ⑹—Baiyan basin

18])
F₁—Baifenzi-Fulaishan fault;F₂—Anqiu-Juxian fault;F₃—Changyi-Dadian fault
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Geological section of Juxian fault depression(according to reference [18])
F₁—Baifenzi-Fulaishan fault;F₂—Anqiu-Juxian fault;F₃—Changyi-Dadian fault

Schematic diagram of working method of shallow seismic reflection wave field method

Research on the data of measuring line in the area

The reflection data processing

Interpretation of shallow seismic depth profile of line Ⅰ

Interpretation of shallow seismic depth profile of line Ⅱ

Interpretation of shallow seismic depth profile of line Ⅲ

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