基于布格重力异常研究运城盆地的构造特征
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中国地震局地震行业专项(201508009)


Structural Characteristics of the Yuncheng Basin, China, Based on Bouguer Gravity Anomalies
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    摘要:

    利用运城及周边地区的布格重力资料,对布格重力数据进行小波分解得到不同阶次的重力异常信息。依据各个阶次的小波变换结果并结合该区域的地质构造环境,对小波变换细节图中存在的特征较为明显的布格重力异常带进行深入分析,对异常所揭示的构造现象在地壳不同深度的分布特性等进行分析研究。结果表明:小波变换细节与区内地壳内部的隆起、凹陷及断裂构造具有很好的对应关系,可以对运城盆地的构造特征及地壳结构做更加深入的研究。

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    For this paper, a wavelet decomposition was carried out on the Bouguer gravity data of the Yuncheng Basin, China, and the surrounding area. Gravitational anomalies of different orders in the study area were obtained. According to the wavelet transform results of the different orders and the geological tectonic environment of the region, a detailed map of the Bouguer gravity anomaly zone, with its characteristic wavelet transform, was thoroughly analyzed. The distribution characteristics of the structural phenomena at different depths of the crust, which were revealed by the anomalies, were studied. The results showed that the wavelet transform details corresponded well with the uplift and depression in the crust and the fault structure. This study should provide a reference for the structural characteristics and crustal structure in the Yuncheng basin.

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李洋洋,李勇江,姚家骏,谢汝一,贾宇鹏,李青.基于布格重力异常研究运城盆地的构造特征[J].地震工程学报,2020,42(4):919-926. LI Yangyang, LI Yongjiang, YAO Jiajun, XIE Ruyi, JIA Yupeng, LI Qing. Structural Characteristics of the Yuncheng Basin, China, Based on Bouguer Gravity Anomalies[J]. China Earthquake Engineering Journal,2020,42(4):919-926.

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  • 收稿日期:2019-09-16
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  • 在线发布日期: 2020-08-18