论文部分内容阅读
笔者运用不同波段组合的遥感比值图像的主成份复合技术进行热液蚀变信息增强，研制了一 种利用陆地卫星ＴＭ数据在有植被覆盖的湿润亚热带火山岩区自动提取矿化蚀变信息的新方法，并 在浙东新昌拔茅金银多金属矿区的试验研究中获得了成功，不仅有效地显示了矿区内已知蚀变岩 的展布，还揭示出了一些前人未知的热液蚀变岩区、硅化石英脉、控矿物造及火山机构等对成矿 预测极有价值的信息。
In this paper, we use the principal component composite technique of remote sensing ratio images of different bands to enhance hydrothermal alteration information. A new method for extracting mineralized alteration information from moist subtropical volcanic areas covered by vegetation using Landsat TM data was developed And succeeded in the experimental study of the Bauxite gold-silver polymetallic ore district in Xinchang, eastern Zhejiang Province, which not only effectively demonstrated the distribution of the known alteration rocks in the ore district but also revealed some previously unknown hydrothermal alteration rock areas , Quartz fossil veins, controlled mineral deposits and volcanic structures are of great value in mineralization prediction.