吉林大学学报(地球科学版) ›› 2015, Vol. 45 ›› Issue (4): 1237-1245.doi: 10.13278/j.cnki.jjuese.201504303

• 地球探测与信息技术 • 上一篇    下一篇

ASTER遥感影像与航磁梯度数据综合应用

贾伟洁1, 郭华1,2, 李迁1   

  1. 1. 中国国土资源航空物探遥感中心, 北京 100083;
    2. 中国地质大学(北京)地球物理与信息技术学院, 北京 100083
  • 收稿日期:2014-08-07 发布日期:2015-07-26
  • 作者简介:贾伟洁(1985),女,工程师,主要从事航空物探与遥感数据处理与方法技术研究,E-mail:sunleaver@gmail.com.
  • 基金资助:

    中国地质调查局地质大调查项目(12120113099000)

Integrated Application of ASTER Remote Sensing Image and Aeromagnetic Gradient Data

Jia Weijie1, Guo Hua1,2, Li Qian1   

  1. 1. China Aero Geophysical Survey & Remote Sensing Center for Land and Resources, Beijing 100083, China;
    2. School of Geophysics and Geoinformation Technology, China University of Geoscience, Beijing 100083, China
  • Received:2014-08-07 Published:2015-07-26

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452

摘要：

以中国北部某地区为研究区域,通过研究区典型矿物与典型地物波谱分析,利用主成分分析与波段比值方法,对ASTER数据的蚀变信息进行提取,获取地表蚀变信息.同时根据实际飞行测量所得的航磁梯度数据解译梯度异常,获取地表以下的岩性构造信息,并圈定航磁梯度找矿远景区.最后,利用这两种数据优势,建立遥感和航磁梯度综合远景区判断依据,划分出研究区一级综合远景区3处,二级综合远景区3处,三级综合远景区2处,并进行实地踏勘.结果表明,遥感与物探方法的结合,可以提高地质勘查的准确度与效率.

关键词: ASTER, 波谱分析, 蚀变信息, 航磁梯度异常, 综合远景区

Abstract:

Some place in North of China was taken as the study area in this paper. Through the research of typical areas and mineral feature spectrum analysis, by using principal component analysis and band ratio, we extracted surface alterations of ASTER data. At the same time, based on the actual flight data of the aeromagnetic gradient, we interpreted gradient anomaly, achieved deep structure and underground ore body information, and delineated aeromagnetic gradient promising prospective areas. By taking advantage of these two types of data, we built judgment criteria of remote sensing and aeromagnetic gradient information promising prospective areas. Based on this, three first class comprehensive promising prospective areas, three second class comprehensive promising prospective areas, and two third class comprehensive promising prospective areas were delineated. Many field explorations were made. The result proves that our method makes geological survey more quick and accurate.

Key words: ASTER, spectrum analysis, alteration information, aeromagnetic gradient abnormal, comprehensive promising perspective area

中图分类号: 

  • P627

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