中国东部海区磁异常特征及其地质解释

孟祥君; 张训华; 刘怀山; 韩波

doi:10.3724/SP.J.1140.2014.03067

中国东部海区磁异常特征及其地质解释

孟祥君^1,2,3,
张训华^2,3,
刘怀山¹,
韩波^2,3

1. 中国海洋大学海洋地球科学学院, 青岛 266100;
2. 国土资源部海洋油气资源和环境地质重点实验室, 青岛 266071;
3. 青岛海洋地质研究所, 青岛 266071

基金项目:

国家重点基础研究发展规划项目(2013CB429701)；国家自然科学基金国际合作交流项目(41210005)；国家专项项目(GZH201400205)；国家自然基金青年基金项目(41206050)

详细信息

作者简介:
孟祥君(1975-),男,高级工程师,主要从事海洋地球物理研究,E-mail:sdqdmxj@126.com

中图分类号: P736.1
计量
- 文章访问数: 1746
- HTML全文浏览量: 165
- PDF下载量: 15
出版历程
- 收稿日期: 2013-10-14
- 修回日期: 2014-03-02

THE MAGNETIC ANOMALY PATTERN IN THE EASTERN CHINA SEAS AND ITS GEOLOGICAL INTERPRETATION

1. College of Marine Geoscience, Ocean University of China, Qingdao 266100, China;
2. Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China;
3. Qingdao Institute of Marine Geology, Qingdao 266071, China

摘要

摘要: 通过对中国东部海区最新磁力资料的分析和整理，结合前人的研究成果，利用先进的计算机手段，编制了中国东部海区及邻域磁力异常图。磁异常强度一般为±200 nT，局部达到±500 nT以上，呈NE、NNE向带状分布，局部异常走向不一，类型多变，磁异常特征刻画出东西分带南北分块的构造模式。根据磁力异常的幅值高低、形态展布和区域变化等特点，将磁力异常划分为华北-渤海异常区、山东半岛-北黄海异常区等9个异常区和34个异常亚区，并对引起磁异常地质问题进行了探讨和解释。
- 磁力异常 /
- 异常分区 /
- 异常特征 /
- 中国东部海区
Abstract: A new round of magnetic anomaly map of eastern China seas and adjacent areas has been compiled with advanced computer means based on the new magnetic data and former researches. Generally, the intensity of magnetic anomalies varies around ±200 nT, except for some local ones, which may reach values over ±500 nT. The anomalies extend in NE or NNE direction in a banded pattern. The types and distribution pattern of local anomalies are variable. However, they all show a banded pattern in EW direction and blocky pattern in NS direction in general, owing to the control of tectonics.. According to the amplitude, shape, and distribution pattern of the magnetic anomalies, the magnetic anomaly map is divided into nine regions, such as the North China-Bohai magnetic anomaly region and Shandong peninsula-north Yellow Sea anomaly region, etc. and 34 subregions. The geological implication of the distribution pattern is discussed in details in this paper.
- magnetic anomalies /
- anomaly feature /
- anomalies division /
- eastern China Seas

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参考文献(15)

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