松辽、辽河两断坳盆地可地浸砂岩型铀矿找矿的遥感地质信息研究

REMOTE-SENSING AND GEOLOGICAL INFORMATION FOR PROSPECTIVE AREA SELECTION OF IN-SITU LEACHABLE SANDSTONE-TYPE URANIUM DEPOSIT IN SONGLIAO .AND LIAOHE FAULTED-DEPRESSED BASINS

本文从松辽、辽河两断坳盆地的地形地貌、水系及古冲（洪）积扇分布等遥感地质信息特征出发，根据可地浸砂岩型铀矿床成矿地质环境、矿床围岩──砂体的时空分布规律，对两盆地找矿远景地段的遥感影像特征、构造样式及古地理环境进行分析，并结合丰富的石油地质科研资料，建立了区内可地浸砂岩型铀矿的遥感地质找矿模型，进而以此判断找矿选区的最佳部位，指出找矿方向。

On the basis of remote-sensing information and geological environments for the formation of in-situ leachable sandstone-type uranium deposits such as geomorphic features, distribution of drainage system, and paleo-alluvial (diluvial) fans and time-space distribution regularities of orehosting rocks and sandstone theies in Songliao and Liaohe faulted-depressed basins, image features, tectonic patterns and paleo-geographic environment of the prospective areas are discussed for both basins in this paper, and based on a great number of petroleum-geological data and comparison analysis, a remote sensing-geological prospecting model for in-situ leachable sandstonetype uranium deposits in the region is established,providing indications for selection of prospective area.