[an error occurred while processing this directive] 世界地质 2020, 39(4) 849-869 DOI:   10.3969/j.issn.1004-5589.2020.04.011  ISSN: 1004-5589 CN: 22-1111/P
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伽玛总量
伽玛能谱
氡浓度
放射性异常
成矿远景区
本文作者相关文章
曹云
张哲铭
陈田华
董之凯
张新民
马冰
PubMed
Article by Cao Y
Article by Zhang Z
Article by Chen T
Article by Dong Z
Article by Zhang X
Article by Ma B
四川若尔盖铀矿整装勘查区放射性特征与铀成矿关系
曹云, 张哲铭, 陈田华, 董之凯, 张新民, 马冰
四川省核工业地质调查院, 成都 610052
摘要： 在若尔盖整装勘查区开展地面伽玛总量测量、地面伽玛能谱测量和土壤氡浓度测量等综合放射性测量工作，并对获得的测量数据进行分析研究。结果表明，放射性异常多集中分布在白依背斜南北两翼出露的塔尔组上段（S1t2）、羊肠沟组上段（S1y2）及太阳顶组（∈t）的含碳硅质岩与硅质灰岩中，异常往往定位于成矿地质体层间断裂或岩性界面附近，受地层、岩性及构造控制较明显。综合研究区内所发现的各类放射性异常点、带的分布特征，优选并圈定了4处成矿远景区，分别为向阳沟—占哇罗军沟I级成矿远景区、温泉沟—则龙南Ⅱ级成矿远景区、则龙北找矿Ⅲ级远景区和上石峡—白依沟Ⅲ级成矿远景区。
关键词： 伽玛总量   伽玛能谱   氡浓度   放射性异常   成矿远景区  
Relationship between radioactive characteristics and uranium metallogenesis at Zoige integrated exploration area, Sichuan
CAO Yun, ZHANG Zhe-ming, CHEN Tian-hua, DONG Zhi-kai, ZHANG Xin-min, MA Bing
Sichuan Institute of Nuclear Geology, Chengdu 610052, China
Abstract: Ground total gamma radiation survey, ground gamma-ray spectrometric survey and soil radon concentration measurement were conducted in Zoige integrated exploration area, and the corresponding measurements were analyzed. The results show that radioactive anomalies concentrate in the carbonaceous quartzites and siliceous limestones of the upper Ta'er (S1t2), upper Yangchanggou (S1y2) and Taiyangding (∈t) formations occurred in the north and south wings of Baiyi anticline. Anomalies are always located near the interlayer fractures or lithologic interfaces of the metallogenic geological bodies, and obviously controlled by strata, lithologies and structures. After analyzing the distribution characteristics of all types of radioactive anomalies, four prospective areas are optimized and delineated, namely Xiangyanggou-Zhanwaluojungou level I prospective area, Wenquangou-Zelongnan level Ⅱ prospective area, Zelongbei level Ⅲ prospective area and Shangshixia-Baiyigou level Ⅲ prospective area.
Keywords: total gamma radiation   gamma-ray spectral   radon concentration   radioactive anomaly   prospective area  
收稿日期 2019-11-25 修回日期 2020-03-16 网络版发布日期  
DOI: 10.3969/j.issn.1004-5589.2020.04.011
基金项目:

中国地质调查局发展研究中心（121201004000150017-94、121201004000160901-79）、四川省科技计划项目（2018SZ0273）、四川省科技厅重点研发项目（2018SZ0274）资助。

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