摘要
在目视解译的基础上,利用线性体统计分析和遥感图像数字分析工作站开展了进一步研究,不仅准确地圈定了浮图峪古火山机构,而且从遥感地质角度探讨了古火山机构的成因。研究结果表明:遥感统计分析和微机处理方法,不仅可以用于大区域的地质研究,同样可以用于较大比例尺、较高精度要求的小范围专题性研究。
Based on interpretation of remote sensing geology, paleovolcanic mechanism is found in Futuyu ore field, China. After digital image processing and geological interpretation of TM images (including output images) and airphoto in this district, the author detected a fuzzy circular structure in the area from TM output image and another distinct circular structure. The later is within the fomer one from airphoto. According to the author's study of regional and local structural stress field of this area, and mapping of linear isogram, direction abnormality, central symmetry and integrade analysis with geological data, and based on geological field verification of the above researchs, some conclusions are obtained. (1) The circular structure in airphoto shows a destructional paleovolcanic vent. (2) The circular structure in TM output image shows paleovolcanic structure, expressing geomorphological features mainly. (3) The paleovolcanic mechanism is important for ore generation in Futuyu ore field, China. (4) The paleovolcanic mechanism provides a new clue to explanation of geological evolution in this district.
关键词
遥感
古火山
TM图像
微机
remote sensing geology, paleovolcanic mechanism, TM image
