伊犁盆地南缘可地浸砂岩型铀矿床远景地段影像特征及识别

本文阐述了科学试验卫星像片的二次开发研究，计算机三维立体模拟显示及多参数特征提取的原理、方法和步骤；综合研究了伊犁盆地南缘可地浸砂岩型铀矿不同级别的远景地段在不同类型影像上的特征，分析了远景地段影像特征的内涵及地质意义，并据此对远景地段影像特征进行了识别。在此基础上，采用层层剥笋、步步深入、逐次缩小范围的方法，对伊犁盆地从区域成矿远景、有利地段（靶区）的优选到矿区范围有利勘探地段进行了逐步分级预测，取得了良好的验证效果。

IMAGE FEATURE AND RECOGNITION OF PROSPECTIVE SECTION OF IN SITU LEACHABLE SANDSTONE TYPE URANIUM DEPOSITS AT SOUTHERN MARGIN OF YILI BASIN

This paper describes the secondary development of scientific experimental satellite photograph,the three dimension stereo simulation display and the elaboration principle,methods and procedures of multi parameter extraction.At the same time,the image features of prospective areas for in situ leachable sandstone type uranium deposits in Yili basin on different type images are comprehensively studied,the geological implication and significance of image features are analysed,and recognition of image features for prospective areas is made.On the basis of above research achievements,three grade prediction,i.e. the regional metallogenic prediction,the selection of prospective area,and the selection of favorable mineralized site,is performed,and good verification results have been obtained.