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物探与化探  2021, Vol. 45 Issue (3): 609-615    DOI: 10.11720/wtyht.2021.1187
  地质调查 本期目录 | 过刊浏览 | 高级检索 |
安丘—莒县断裂莒县盆地段浅层地震探测及意义
王薇1,2,3(), 林松1,2,3,4(), 程邈1,2,3, 金聪4, 周红伟4
1.中国地震局地震研究所,湖北 武汉 430071
2.地震预警湖北省重点实验室,湖北 武汉 430071
3.湖北省地震局,湖北 武汉 430071
4.武汉地震工程研究院有限公司,湖北 武汉 430071
Shallow seismic exploration of the Anqiu-Juxian fault in Juxian Basin and its significance
WANG Wei1,2,3(), LIN Song1,2,3,4(), CHENG Miao1,2,3, JIN Chong4, ZHOU Hong-Wei4
1. Institute of Seismology,CEA,Wuhan 430071,China
2. Hubei Key Laboratory of Earthquake Early Warning,Wuhan 430071,China
3. Hubei Earthquake Administration,Wuhan 430071,China
4. Wuhan Institute of Earthquake Engineering Co. Ltd.,Wuhan 430071,China
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摘要 

郯庐断裂带安丘—莒县断裂在莒县盆地段处于隐伏状态,盆地内地球物理资料缺乏,断裂展布及空间几何特征尚不清楚。鉴于此,本文通过浅层地震反射探测对盆地内隐伏断裂进行探测,结合前人的研究成果对安丘—莒县断裂在盆地内的展布特征进行初步探讨与分析。研究结果表明,安丘—莒县断裂在莒县盆地错断第四系,埋深相对较浅,断层特征主要表现为挤压逆冲,局部地段表现为正断性质。浅层地震反射剖面呈现了安丘—莒县断裂在莒县盆地内地球物理新证据,同时也为该断裂的整体性评价提供了地球物理参考依据。

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王薇
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关键词 郯庐断裂带安丘—莒县断裂浅层地震反射莒县盆地    
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 wordsTanlu fault zone    Anqiu-Juxian fault    seismic reflection    Juxian basin
收稿日期: 2020-04-21      修回日期: 2021-03-03      出版日期: 2021-06-20
ZTFLH:  P631.4  
基金资助:中国地震局地震研究所面上基金项目(ls201926301)
通讯作者: 林松
作者简介: 王薇(1985-),女,工程师,硕士,主要研究方向为工程地质、岩土工程。Email: smilevivi0821@163.com
引用本文:   
王薇, 林松, 程邈, 金聪, 周红伟. 安丘—莒县断裂莒县盆地段浅层地震探测及意义[J]. 物探与化探, 2021, 45(3): 609-615.
WANG Wei, LIN Song, CHENG Miao, JIN Chong, ZHOU Hong-Wei. Shallow seismic exploration of the Anqiu-Juxian fault in Juxian Basin and its significance. Geophysical and Geochemical Exploration, 2021, 45(3): 609-615.
链接本文:  
https://www.wutanyuhuatan.com/CN/10.11720/wtyht.2021.1187      或      https://www.wutanyuhuatan.com/CN/Y2021/V45/I3/609
Fig.1  研究区区域地质构造简图
断裂编号:①—凫山断裂;②—苍尼断裂;③—铜石-甘霖断裂;④—汶泗断裂;⑤—蒙山山前断裂;⑥—夏庄-安驾庄断裂;⑦—羊流店断裂;⑧—新泰-蒙阴断裂;⑨—铜冶店-孙祖店断裂;⑩—马牧池-铜冶店断裂;?—鄌郚-葛沟断裂;?—沂水-汤头断裂;?—白芬子-浮来山断裂;?—安丘-莒县断裂;?—昌邑-大店断裂;?—相邸-高阁庄断裂
盆地编号:⑴—李庄盆地;⑵—临沂盆地;⑶—板泉盆地;⑷—苏村盆地;⑸—莒县盆地; ⑹—白彦盆地
Fig.2  莒县断陷地质剖面(据文献[18])
F1—白芬子-浮来山断裂;F2—安丘-莒县断裂;F3—昌邑-大店断裂
Fig.3  浅层地震反射波法外业工作示意
测线名称 测线起点位置坐标 测线终点位置坐标 测线长度/m
纬度/(°) 经度/(°) 纬度/(°) 经度/(°)
测线Ⅰ 35.554156 118.801346 35.551083 118.823662 2050
测线Ⅱ 35.534461 118.778858 35.528873 118.797398 1800
测线Ⅲ 35.523844 118.773193 35.519233 118.789158 1470
Table 1  研究区域测线信息
Fig.4  数据处理流程
Fig.5  测线Ⅰ浅层地震深度解释剖面
Fig.6  测线Ⅱ浅层地震深度解释剖面
Fig.7  测线Ⅲ浅层地震深度解释剖面
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