Acta Scientiarum Naturalium Universitatis Pekinensis

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Magnetic Tomography in the Central Bohai Sea of China

HOU Guiting1, QIAN Xianglin1, SHI Ge1, LIU Changfeng2   

  1. 1Department of Geology, Peking University, Beijing, 100871;2Institute of Geology and Geophysics, Academia Sinica, Beijing, 100101
  • Received:2001-03-05 Online:2003-01-20 Published:2003-01-20


侯贵廷1, 钱祥麟1, 史謌1, 刘长风2   

  1. 1北京大学地质学系,北京,100871;2中国科学院地质与地球物理研究所,北京,100029

Abstract: The central Bohai Sea is one of the thinest lithosphere in eastern China where strike-slip and extension faults are very intensive with intensive magmatic activity, including the volcanic rocks and intrusion, which show the conspicious high positive magnetic anomalies. The spatial distribution, shape and property of high magnetic anomalies in the central Bohai Sea are inversed by the magnetic tomography, based on the analysis of regional geology and seismic sections in the Bohai basin.

Key words: high gravity and magnetic anomaly, magnetic tomography, volcanic rocks, intrusive rocks

摘要: 渤海中部是中国东部岩石圈最薄的地区之一,走滑作用和伸展作用十分强烈,同时伴随强烈的岩浆活动,发育火山岩和侵入岩,在本区表现为一些明显的磁异常高。通过对渤海中部的磁化强度数据进行层析成像分析,结合渤海湾盆地的区域地质和地震剖面的分析,反演引起渤海中部磁异常高的地质体的空间分布形态和性质。

关键词: 磁异常高, 磁性层析成像, 火山岩, 侵入岩

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