综合物化探方法在鹿井矿田洞房子地区找矿中的应用

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英文篇名：The application of the comprehensive geophysical and geochemical methods in the dongfangzi area of lujing orefield 作者：刘春月 英文作者：LIU Chun-Yue;Research Institute No.270,CNNC; 关键词：大功率激电测量 ; 地面伽玛能谱测量 ; 土壤210Po测量 ; 鹿井矿田洞房子地区 英文关键词：High power IP measurement;;Ground gamma spectrometry survey;;Soil 210Po survey;;Dongfangzi Area of Lujing orefield 中文刊名：世界有色金属 英文刊名：World Nonferrous Metals 机构：核工业270研究所; 出版日期：2019-08-01 16:19 出版单位：世界有色金属 年：2019 期：11 语种：中文; 页：72-75 页数：4 CN：11-2472/TF ISSN：1002-5065 分类号：P631;P632;P619.14

摘要

找矿新理论表明红盆深部是有利于矿化保存的地区,是扩大后备资源储量之所在。因此,红盆地区地层的识别及下伏地质体的探查对于该区铀矿找矿工作的进一步开展具有重要意义。洞房子地区的红层位于鹿井矿田北部,丰州盆地北缘,具有优越的成矿条件和保矿条件。在区内地质及地球物理特征的基础上,针对拟解决的地质问题,开展了大功率激电、地面伽码能谱测量和土壤~(210)Po法测量的应用研究,结合丰州盆地的地质资料和岩性特征,对地球物理数据进行了处理和解释,查明了区内的红层厚度、与下伏花岗岩体的接触关系和隐伏控矿断裂展布特征,并提取了深部铀矿化信息,圈定了成矿有利部位。通过钻孔验证,取得了较好的找矿效果。
        The new prospecting theory shows that the deep part of the red basin is an area favorable to mineralization preservation and is the place to expand reserves of reserve resources. Therefore, the identification of strata and the exploration of underlying geological bodies in the Red Basin area are of great significance for the further development of uranium prospecting in this area. The red beds in Dongfang area are located in the north of Lujing orefield and the north margin of Fengzhou Basin. They have superior metallogenic and mineral preservation conditions. On the basis of the geological and geophysical characteristics in the area and in view of the geological problems to be solved, the application research of highpower IP, ground gamma-ray spectrometry and soil ~(210)Po method is carried out. Combining with the geological data and lithological characteristics of Fengzhou Basin, the geophysical data are processed and interpreted, and the red beds in the area are identified. Thickness, contact relationship with underlying granite body and distribution characteristics of concealed orecontrolling faults are extracted, and uranium mineralization information in deep part is extracted, and favorable metallogenic sites are delineated. Through borehole verification, good prospecting results have been achieved.

引文

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