地球科学进展 ›› 2016, Vol. 31 ›› Issue (5): 481 -493. doi: 10.11867/j.issn.1001-8166.2016.05.0481.

研究论文 上一篇    下一篇

新疆和田南部地区岩石磁化率变化特征研究
侯征 1, 2, 于长春 1, 吴彦旺 1, 熊盛青 1, 郭鸿军 3, 贾琦 3   
  1. 1.中国国土资源航空物探遥感中心,北京 100083;
    2.河北地质大学勘查技术与工程学院,河北 石家庄 050031;
    3.天津华北地质勘查局,天津 300170
  • 收稿日期:2016-02-25 修回日期:2016-04-02 出版日期:2016-05-10
  • 基金资助:
    国家高技术研究发展计划项目“航空地球物理遥感综合探测技术与解释系统研究”(编号:2013AA063905); 中国地质调查局和天津华北地质勘查局矿业产业援疆项目所属工作项目“新疆和田东三县1∶ 5万航磁调查”(编号:12120113072800)资助

Research of the Rock Magnetic Susceptibility Characteristics in Southern Hotan Region in Xinjiang

Hou Zheng 1, 2, Yu Changchun 1, Wu Yanwang 1, Xiong Shengqing 1, Guo Hongjun 3, Jia Qi 3   

  1. 1.China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China;
    2.School of Exploration Technology and Engineering, Hebei GEO University, Shijiazhuang 050031, China;
    3.Tianjin North China Geological Exploration Bureau, Tianjin 300170, China
  • Received:2016-02-25 Revised:2016-04-02 Online:2016-05-10 Published:2016-05-10
  • About author:Hou Zheng(1980-),male, Hohhot City, Inner Mongolia, Lecturer. Research areas include the aeromagnetic data processing and interpretation, geophysical nonlinear joint inversion.E-mail:hou_zheng@163.com
  • Supported by:
    Project supported by the National High Technology Research and Development Program of China “The research of aviation geophysical remote sensing comprehensive detection technology and interpretation system” (No.2013AA063905); The China Geological Survey and Tianjin North China Geological Exploration Bureau Industry Supporting Xinjiang Project belongs to the Work Project of “ 1∶ 50000 aeromagnetic survey in the three Counties of Northeast Hotan in Xinjiang” (No.12120113072800)
为配合新疆和田南部地区1∶ 5万航磁调查工作,掌握该区岩石磁性特征,填补这一地区缺少岩石磁化率资料空白,2013—2015年在该地区开展了区域性岩石磁化率调查工作,完成331处物性点测量,获得有效体积磁化率数据10 256个,采集岩石样品270块。对实测资料进行了详细地分类统计,进一步分析发现该区岩石磁化率主要受岩石中矿物成分、结构以及岩石时空分布影响。中、酸性侵入岩磁化率主要由岩石中黑云母的含量决定,黑云母对中、酸性侵入岩磁化率的贡献要高于其他超顺磁性矿物的贡献。对于相同岩性的岩石磁化率具有沿深大断裂分布的磁化率值高,沿次级断裂分布的磁化率值相对低的空间分布特点和早古生代中、酸性侵入岩磁化率高于晚古生代中、酸性侵入岩的时间分布特点。研究结果为航磁资料解释、地质找矿、构造演化研究提供了重要依据。
In order to cooperate with 1∶ 50000 aeromagnetic survey work, master the rock magnetic characteristics and fill in the material blank of rock magnetic susceptibility data in southern Hotan Region in Xinjiang, we carried out regional rock magnetic susceptibility investigation work in the region from 2013 to 2015 years, completed properties measurement work of 331 points, obtained 10 256 effective volume magnetic susceptibility data and collected 270 pieces of rock samples. According to classified statistics in detail for the measured data and further analysis, we found that the magnetic susceptibility of this region rocks was mainly influenced by the mineral composition of rocks, structure and space-temporal distribution. The magnetic susceptibility of acid or medium-acid intrusive rocks was mainly decided by the content of the biotite in rocks, and the contribution of biotite to the magnetic susceptibility of acid or medium-acid intrusive rocks was higher than other super paramagnetic minerals. The magnetic susceptibility of the same lithology rocks was high along the distribution of deep fault, and was relatively low along the secondary fracture distribution. The magnetic susceptibility of acid or medium-acid intrusive rocks in early Paleozoic was higher than the magnetic susceptibility of acid or medium-acid intrusive rocks in the late Paleozoic. This research work can provide an important basis for the aeromagnetic data interpretation, geological prospecting and tectonic evolution research.

中图分类号: 

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