Fault and lithology interpretation for the northern coastal zone of Taizhou based on aeromagnetic data
Wang Ming, Li Jiao-jiao*, Zhang Yong-jun, Li Yi-chuan, and Xu Lu-ping
1. China Aero Geophysical Survey and Remote Sensing Center for Natural Resources, Beijing, PRC.
2. Key Laboratory of Airborne Geophysics and Remote Sensing Geology of MNR, Beijing, PRC.
Abstract The northern coastal zone of Taizhou spans three tectonic units: the North China Block, Lower Yangtze Block, and Cathaysian Block. The regional geological structure is complex, magmatic activity is strong, and faults are developed. Based on the latest aeromagnetic data, along with airborne gravity, regional geology, and measured rock susceptibility data, the aeromagnetic anomaly characteristics and distribution regularity of magmatic rocks and faults in the study area are classified and studied. Hundreds of intrusive and volcanic rocks are delineated, and magmatic activity is mainly concentrated in the Meso–Cenozoic Era, which is dominated by the Yanshanian Period and controlled by deep-large faults; these deep-large faults are mainly distributed in NE, NNE, and NW directions. There are SN, EW, and arc faults as well. The former has a great influence on the regional structure and tectonic evolution. Based on the epicenter distribution of natural earthquakes, deep-large fault activity is preliminarily discussed. The results presented in this study can provide a reference for meeting national strategic needs and conducting a comprehensive geological survey of the coastal zone, resolving major geological problems, realizing the goal of land–sea integration, and assisting in the planning of northern coastal economic zone, urban agglomeration planning and site selection, major engineering constructions, and so on.
Fund: This work was supported by the Foundation for Youth Innovative Research of Key Laboratory of Airborne Geophysics and Remote Sensing Geology of MNR (2020YFL08); The National Key Research and Development Program of China (2017YFC0602204); Investigation and application of airborne geophysical remote sensing in Bohai Coastal Zone (DD20160150).
Corresponding Authors: Jiaojiao Li (E-mail:tzgrace0928@163.com).
E-mail: tzgrace0928@163.com
About author: Ming Wang is a senior engineer currently working with the China Aero Geophysical Survey and the Remote Sensing Center for Natural Resources. He is mainly engaged in aerogeophysical exploration.
E–mail: 64037990@qq.com.
Cite this article:
. Fault and lithology interpretation for the northern coastal zone of Taizhou based on aeromagnetic data[J]. APPLIED GEOPHYSICS, 2024, 21(2): 372-383.
2024, Vol. 21 
