中北大学学报（自然科学版）2017，Vol.38Issue(2)：124-132,139,10.DOI:10.3969/j.issn.1673-3193.2017.02.006
基于ASTER数据的甘肃花牛山地区蚀变信息提取
Information Extraction of Alteration of Huaniushan Region,Gansu Province Based on ASTER Data
摘要
Abstract
The research area was centered on Jiuquan Huaniushan in Gansu Province.Mineralization alteration was extracted for skarnization,argillic-phyllic,propylitization and ferric contamination.Using the ASTER remote sensing images as data source.In the beginning,we designed the alteration information extraction program of four mineralization alteration was dsigned according to their typical mineral spectral characteristics.And then the principal component analysis was used to extract alteration the information successfully.On this basis,the results of extraction with the stratum,structural and known mines were overlay analysis.It is concluded that except abnormal ferric contamination match with field verification points badly,the others extraction results of anomaly information are consistent with the actual distribution of the field.The results show that the alteration information extracted by ASTER has an important meaning for indicating the exploration of ore prospecting.关键词
ASTER/花牛山/主成分分析/蚀变信息提取/叠加分析Key words
ASTER/Huaniushan/principal component analysis/information extraction of alteration/overlay analysis分类
天文与地球科学引用本文复制引用
刘知,周萍..基于ASTER数据的甘肃花牛山地区蚀变信息提取[J].中北大学学报（自然科学版）,2017,38(2):124-132,139,10.基金项目
中国地质调查局地质调查资助项目(DD2016006820) （DD2016006820）
