个旧锡多金属矿集区老厂矿田遥感蚀变信息提取  

EXTRACTION OF REMOTE SENSING ALTERATION INFORMATION IN LAOCHANG ORE FIELD OF GEJIU TIN POLYMETALLIC ORE CONCENTRATION AREA

作　　者：程迁群 雷阳艾 CHENG Qian-qun;LEI Yang-ai(Team 310,Yunnan Bureau of Nonferrous Geology,Dali 671000)

机构地区：[1]云南有色地质局三一〇队,云南大理671000

出　　处：《云南地质》2025年第1期49-55,共7页Yunnan Geology

摘　　要：个旧锡多金属矿集区是我国重要的锡金属产地,老厂矿田为区内五大矿田之一。本文利用ETM、ASTER、Landsat8-OLI等多种多光谱遥感数据为数据源,根据蚀变矿物的波谱特征,设计去除干扰信息-异常信息提取-异常分级-异常信息处理的蚀变信息提取方案,对Landsat8遥感影像进行蚀变信息提取,为未来找矿勘查提供基础性依据。The Laochang ore field is one of the five major ore fields of Gejiu tin polymetallic ore concentration area,which is an important tin producing area in China.Multispectral remotesensing data such as ETM,ASTER,and Landsat8-OLI were used as data sources.According to spectral characteristics of altered minerals,an alteration information extraction scheme was designed,and alteration information from Landsat8 images was extracted to provide a basis for future prospecting.

关 键 词：多元卫星遥感影像 蚀变信息提取 Landsat8-OLI 多光谱 老厂矿田 云南个旧 

分 类 号：P618.44[天文地球—矿床学]