西南山区遥感蚀变异常信息提取综合研究——以云南酒房地区为例
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摘要
遥感蚀变异常信息现已广泛的用于矿产勘查,并在一些地区取得了良好的效果,但由于西南地区地形地貌复杂,地表覆盖严重,给遥感蚀变异常提取带来了很大的困难。如何因地制宜的进行西南地区遥感蚀变异常信息提取工作是我们面临的重要问题。本文以云南酒房地区为例,探讨了西南地区遥感蚀变异常信息提取中遇到的主要问题,结合地形地貌特征进行干扰信息的去除;结合地质背景、成矿条件进行遥感异常信息提取类别的选择;以及结合化探异常进行异常信息后处理等几个方面完善了异常提取的方法,使得遥感蚀变异常提取方法更加具有针对性,通过与现有地质资料的分析,证明本文异常提取方法可以有效的提取西南地区与矿相关的蚀变信息。
Remote sensing alteration anomalies information has been widely used and obtained good results in mineral exploration. However,it is very difficult to make the remote sensing information extraction of alteration anomalies due to complex topography and geomorphology and heavy surface coverage in southwestern China.Exemplified by the Jiufang region in Yunnan,the present paper deals with the main problems for the remote sensing information extraction of alteration anomalies in southwestern China, including the removal of interference information on the topographical and geomorphological features; the selection of the types of the remote sensing information extraction on the basis of geological background and metallogenic conditions,and the post-processing of abnormal information on the basis of existing geological data. The remote sensing anomalies in the Jiufang region appear dominantly in the southeastern part, and subordinately in the central and southwestern parts. The distribution of the remote sensing anomalies is found to be consistent with that of the geochemical anomalies,and associated with the fault distribution. The above-mentioned techniques are proven to be helpful to the improvement of the remote sensing information extraction associated with the mineralization in the local parts of southwestern China.
Remote sensing alteration anomalies information has been widely used and obtained good results in mineral exploration. However,it is very difficult to make the remote sensing information extraction of alteration anomalies due to complex topography and geomorphology and heavy surface coverage in southwestern China.Exemplified by the Jiufang region in Yunnan,the present paper deals with the main problems for the remote sensing information extraction of alteration anomalies in southwestern China, including the removal of interference information on the topographical and geomorphological features; the selection of the types of the remote sensing information extraction on the basis of geological background and metallogenic conditions,and the post-processing of abnormal information on the basis of existing geological data. The remote sensing anomalies in the Jiufang region appear dominantly in the southeastern part, and subordinately in the central and southwestern parts. The distribution of the remote sensing anomalies is found to be consistent with that of the geochemical anomalies,and associated with the fault distribution. The above-mentioned techniques are proven to be helpful to the improvement of the remote sensing information extraction associated with the mineralization in the local parts of southwestern China.
引文
[1]窦雅娟.高分辨率遥感数据在岩性识别和成矿预测中的应用研究[D].长沙:中南大学,2014.
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[4]刘成,金成洙,姚玉增,等.化探散点数据的图像化及其和遥感图像的叠合[J].东大学报,2003,24(6):597-599.
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[7]余健,董玉森,张志,等.基于ASTER影像的蚀变异常提取方法研究:以赞比亚谦比希铜矿地区为例[J].国土资源遥感,2011,23(3):54-60.
[8]张玉君,曾朝明,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——方法选择和技术流程[J].国土资源遥感,2003,15(2):44-49.
[9]赵英时.遥感应用分析原理与方法[M].北京:科学出版社,2003.
[2]甘甫平,王润生,马蔼乃,等.基于光谱匹配滤波的蚀变信息提取[J].中国图象图形学报,2003,8(2):29-32.
[3]耿新霞,杨建民,等.ASTER数据在浅覆盖区蚀变遥感异常信息提取中的应用[J].地质论评,2008,54(2):184-190.
[4]刘成,金成洙,姚玉增,等.化探散点数据的图像化及其和遥感图像的叠合[J].东大学报,2003,24(6):597-599.
[5]刘寅翔,黄双双.基于ASTER数据相山地区蚀变异常提取研究[J].西部探矿工程,2015,(4):129-132.
[6]吕凤军,郝跃生,石静,等.ASTER遥感数据蚀变遥感异常提取研究[J].地球学报,2008,30(2):271-276.
[7]余健,董玉森,张志,等.基于ASTER影像的蚀变异常提取方法研究:以赞比亚谦比希铜矿地区为例[J].国土资源遥感,2011,23(3):54-60.
[8]张玉君,曾朝明,陈薇.ETM+(TM)蚀变遥感异常提取方法研究与应用——方法选择和技术流程[J].国土资源遥感,2003,15(2):44-49.
[9]赵英时.遥感应用分析原理与方法[M].北京:科学出版社,2003.