天山地区遥感解译及铀矿化地质特征

本文通过卫星照片解译对天山地区的地层进行了划分,尤其是通过线性构造的解译把天山地区分成了若干个不同性质的地块,并对构造规模进行了分级。此外,还讨论了新老构造的继承关系,构造与岩体之间的相互依存关系等。本文又通过环形体的解译进一步确定了火山岩的喷发期次、活动规模及其与铀矿化的关系。通过对花岗岩体侵入期次和相带的划分,进而在解译中配合四道能谱测量判读标志来分析不同影象地质体的可能含铀丰度。另外还探讨了褶皱构造各要素的半定最估算的可能性。

GEOLOGICAL CHARACTERISTICS OF URANIUM MINERALIZATION AND REMOTE SENSING INTERPRETATION IN TIANSHAN REGION

Abstract The stratigraphical diVision in Tianshan region was conducted by means of satelIite image interpretation in the present paper, the accuracy of which is relatively higher than that Of geo1ogical maps. Above a11,through the interpretation of 1inear features,Tianshan region was diVided into several blocks with different characters and the structures were graded according to their dimensions.SHCCCSSive relationship belween new and o1d structures, mutual dependence of existence between structures and massifs are also discu- ssed By the interpretation of ring structures,extrusive stages and actiVity scales of volcanic rocks as wen as their association with uranium mineraIiza- tion are further recOgnized.Based on the diVision Of granite massifs into intrusiVe stages and phase zones,then the possible uraniferous abundance in ge01ogical bodies of Various images was anaIysed in combination with 4-chan- nel gamma spectrometric measurement and interpretatjon criteria. In addition, the possjbility of selni-quantitatiVe estimatjon of arious elemqnts for fOlding structnres is also approached