金矿生物地球化学效应及遥感信息提取  

Biogeochemical Effect of Gold Deposit and Remote Sensing Information Extract

作　　者：马跃良[1] 徐瑞松[1] 吕惠萍[1] 魏东原[2] 

机构地区：[1]中国科学院广州地球化学研究所 [2]广东省科技图书馆

出　　处：《遥感技术与应用》1998年第1期8-17,共10页Remote Sensing Technology and Application

基　　金：中国科学院重大项目

摘　　要：在植被覆盖区，由于植物吸收了土壤和岩石中的矿化元素，致使植物叶体中的矿化元素含量、叶色素含量、水含量、叶面温度和细胞结构等发生变化，即引起了植物的生物地球化学效应，在遥感ＴＭ光谱信息上出现差异性。以广东河台金矿为研究对象，探讨了金矿生物地球化学效应的植物生理生态特征和光谱特性。根据这些特征和差异性，运用遥感图像处理技术，提取金矿生物地球化学效应植被异常信息特征，圈定金矿化遥感异常区，并在广东河台金矿外围地区进行了找矿实践，快速评价了两个金矿化遥感异常区。研究结果表明，利用遥感手段提取生物地球化学效应植被异常信息，应用于找矿实践具有快、准、省的优点。In vegetation district,as a result of that the plant absorb Au and associated elements of lock and soil,the contents of Au and associated elements,pigment,water surface temperature,and cells structure in leaves occur variations,even the plant cause abnormality of biogeochemical effect,thus it appear abnormality in the spectral information of TM image.This paper takes the Hetai gold deposit as researh target.According to these feature and difference,we extract the abnormal feature of biogeochemical effect using remote sensing image processing,and enclose the remote sensing abnormal areas of mineral,thus we achieve the goal to find hidden deposits in vegetation.Meanwhile we go on looking for mineral deposits in western Guangdong and Heilongjiang,and evaluate rapid two the remote sensing abnormal areas.The results proved that remote sensing technology is a rapid,accurate and economical method for applying to practice of looking for mineral deposits in vegetation district,the new way is explored to be looking for hidden deposits in vegetation district.

关 键 词：金矿 矿床 生物地球化学 化学效应 遥感信息提取 

分 类 号：P618.51[天文地球—矿床学] TP79[天文地球—地质学]