综合物探测量在二连盆地沉积岩型铀矿勘查中应用

论文简要介绍了可控源音频大地电磁(CSAMT)测量和土壤氡测量工作方法,结合区域地质资料及物性特征,对二连盆地中西部新乌苏勘查区内CSAMT及土壤氡测量数据中蕴含的地质信息展开了解译。实践证明:CSAMT测量对沉积地层、岩性、隐伏断裂及古河谷的空间展布等能做出有效推断;土壤氡测量不仅可指示深部铀矿化信息,同时还可辅助CSAMT测量提高断裂构造推断的可靠性,二者组合在二连盆地沉积岩型铀矿勘查中具有重要的指导意义。

Application of integrated geophysical surveys to exploration of sedimentary rock type uranium in the Erlian Basin

This paper briefly introduces the controlled source audio frequency magnetotelluric (CSAMT) survey and soil-Rn measurement method, combined with regional geological data and physical characteristics, expand understanding of translation of geological information contained within the CSAMT exploration area and soil-Rn measurement data in. Practice has proved that the CSAMT measurement of sedimentary strata, lithology, buried fault and paleovalley spatial distribution can make effective inference; soil-Rn measurement can not only indicate the deep uranium mineralization information, but also can improve the reliability of CSAMT measurement aided fault inference, the combination of the two has an important guiding significance in the exploration of sedimentary rocks in the basin two. Type uranium deposits.