辽西-冀北地区铀成矿遥感地质信息研究

STUDY ON REMOTE SENSING GEOLOGIC INFORMATION OF URANIUM METALLOGENY IN WESTERN LIAONING-NORTHERN HEBEI REGION

本文从辽西-冀北铀矿床成矿地质环境、时空分布及矿床特征出发，以遥感信息为主，综合地质、物化探、水文等资料进行全区联幅分析、复合成图与应用，建立了不同岩区环、弧形构造解译标志并阐述其地质内涵。解译了火山机构、小型封闭沉积盆地和与铀矿密切相关的岩浆岩体，控矿构造和矿化蚀变带的产状、类型，解译了卫片图像“热晕点”并讨论其地质意义及与铀矿的关系，最后建立了遥感地质找矿模式和综合预测模型。

Based on the study on geologic metallogenic environment, temporal and spatial distribution and deposit features of uranium deposits in western Liaoning-northern Hebei region,summarizing mainly remote sensing information and synthesizing geologic, geophysical andgeochemical as well as hydrological data, this paper has implemented all-region joint-quadrangle analysis, composite mapping and applications, set up interpretation criteria for circular and arcuate structures of different lithological areas, and then expounded their geologicmeaning. Volcanic apparatuses, small close sedimentary basins and magmatic rockbodiesclosely associated with uranium mineralizations, especially the altitude find types of ore-controlling structures and mineralized alteration zones have been interpreted. 'Heat halo spot'has also been interpreted on the satellite image and its geologic meaning and relation to uranium metallization have been discussed. Finally, remote sensing geologic propecting modeland comprehensive prediction model have been established.