基于遥感与分散流异常综合找矿预测研究

龙胜里市地区位于华南板块二级构造单元扬子陆块南缘与华南褶皱带的交接部位。加里东造山运动期,该区处于华南褶皱带变形的前锋,地质条件复杂,构造变形强烈,形成以紧密的线性褶皱和推覆构造为主要背景的构造环境,具有良好的成矿地质条件,是目前广西找矿的热点地区之一。但是,由于该区处于广西北部与湖南省交接的高山区,深山密林,山势陡峻,植被茂盛且覆盖面积广,以往地质工作程度较低,采用传统地质勘查方法在该区找矿难度很大,且成本高和效果不明显。为此,在该区投入了遥感技术和化探分散流结合的找矿预测研究。利用遥感空间信息量和波谱信息量大,且地物信息获取不受地形条件限制,以及化探分散流可以快速定位、定量获取成矿信息的优点,开展了以寻找钨锡多金属矿为目标的研究工作。

Prospecting prediction research based on the RS and Dispersion train

Lishi area of Longsheng, Guanxi province is located at the junction belt between the sub-tectonic units in Yangtze Plate and folded South China plate. In the orogenic phase of Middle-Caledonian, the area is located at in the front deformed of folded zone in South China plate, complicated geologic conditions, tectonic deform is strong, it is formed that adsorb linear folded and nappe structure, have good metallogenic geologic conditions, it is a most potential prospecting area in Guangxi Province. But the area is located at the north of Guangxi Province, connects with Hunan Province, belongs mountain and dense forest region, the mountain is high and precipitous, dense forest and broad covered, research degree is relatively low, so the method used in exploration of traditional is difficulty, high cost and the effect are not obvious. But RS' Spatial and spectrum information is rich, the terrain conditions is unlimited to obtain information and geochemical dispersion train can fast localization quantitative extraction of ore-forming information, and this thesis focuses on remote sensing technology and dispersion train for prospecting prediction W-Sn polymetallic deposits.