Journal of Jilin University(Earth Science Edition) ›› 2015, Vol. 45 ›› Issue (4): 1237-1245.doi: 10.13278/j.cnki.jjuese.201504303

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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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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

CLC Number: 

  • P627

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