内蒙古北柳图庙地区遥感地质解译及矿化蚀变信息提取

Remote sensing geological interpretation and mineralized alteration information extraction in Beiliu temple area, Inner Mongolia

遥感技术作为一项现代化信息技术,在地质领域应用中一直具有不可代替的重要作用。遥感图像具有宏观性、直观性、准确性等一系列特点。因此,本文选取该区域作为研究区,利用遥感技术,对其进行遥感地质解译,主要包括地质构造解译以及矿化蚀变信息提取。本文取得的主要研究成果与认识如下:1.获取研究区OLI影像,开展遥感影像处理,主要包括几何校正、彩色合成、数据融合、图像增强等方面研究处理。2.对研究区构造进行解译,确定了构造解译标志。3.对研究区铁染与含羟基的热液蚀变信息进行了提取,蚀变异常提取将为热液蚀变带、褐铁矿化带的圈定和找矿预测区的确定提供依据。本次工作对研究区的解译标志进行确定以及矿化蚀变信息提取,为即将开展的野外地质工作提供部分参考依据,减少了野外调查路线长度。

As a modern information technology,the remote sensing technology plays an important role in the field of geological application.The remote sensing image has a series characteristics of macro,intuitive and accurate.Therefore, this area is selected as the research area, and remote sensing geological interpretation is carried out by remote sensing technology, mainly including geological tectonic interpretation and mineralized alteration information extraction.The main research results and cognitions of this paper are shown as follows： 1. This study got the image map of OLI in certain area and remote sensing image processing, including geometric correction, color synthesis, data fusion, image enhancement and so on.2.The structure of the study area was interpreted and the structural interpretation marks were determined.3.The information of iron dyeing and hydroxy-containing hydrothermal alteration in the study area is extracted, and the abnormal extraction of alteration will provide the basis for the determination of the hydrothermal alteration zone, the limonite zone and the determination of the prospecting area.This work determines the interpretation mark of the study area and the extraction of mineralized alteration information, which provides some reference for the field geological work to be carried out, and reduces the length of the field survey route.