内蒙古新城子盆地铀及多金属矿产勘查遥感应用

doi:10.13278/j.cnki.jjuese.20190071

摘要/Abstract

摘要： 内蒙古新城子盆地位于大兴安岭南端及扎兰屯火山岩型铀成矿远景带南端，盆地内中生代火山活动频繁且强烈，区域断裂构造发育，主要发育火山岩型铀矿化，目前已发现小型火山岩型铀矿床1处、铀矿点2处、矿化异常点20余处，成矿潜力较大。研究区基岩出露较好，利于开展遥感铀矿勘查工作。笔者利用遥感数据对研究区进行了构造解译及蚀变信息提取，依据高分一号数据，初步厘定了研究区以NE、NW、近EW、近NS向4组线性构造为构造格架的特征；根据Landsat ETM数据提取了铁染、羟基等蚀变信息，缩小找矿范围，并开展铀矿地质调查及钻探查证工作；最后依据多源地学信息进行成矿预测，圈定胡斯台北、巴彦尔灯、五间房以及任家营子东4处成矿远景区。钻探揭露胡斯台北远景区多金属工业孔1个、五间房远景区铀工业孔2个。

关键词: 新城子盆地, 遥感解译, 矿产勘查, 成矿预测, 火山岩型铀矿床

Abstract: The Xinchengzi basin in Inner Mongolia is located in Zhalantun volcanic-type uranium deposit prospecting area in the southern end of Da Hinggan Mountains. The Mesozoic volcanic activities in the basin were frequent and intensive, and regional fault structures were developed. The volcanic-type uranium is the main type of mineralization in this basin. So far, one volcanic-type uranium deposit, two uranium mineralized spots, and twenty mineralization anomalies were found, which indicate that there is great metallogenic potential in this basin. The bedrock of the research area is well exposed, which is conducive to carry out the remote sensing for uranium deposits exploration. In the study area, the author used the remote sensing data to interpret the structure and extract the alteration information. According to the data of GF-1, the study area is characterized by four sets of linear structures of NE, NW, near EW, and near NS. According to Landsat ETM data, the alteration information, such as iron stains and hydroxyl groups, was extracted to narrow the ore prospecting area. In addition, the geological survey and drilling were carried out. Finally, according to the multi-source geo-information, four metallogenic prospecting areas (Husitaibei, Bayanerdeng, Wujianfang and East Renjiayingzi) were delineated. One polymetallic industrial hole in Husitaibei and two uranium industrial holes in Wujianfang have been verified by drilling.

Key words: :Xinchengzi basin, remote sensing interpretation, mineral exploration, metallogenic prediction, uranium volcanic

中图分类号:

PT753

吴燕清, 王世成, 丁园, 王文正, 余弘龙, 王青, 李杨. 内蒙古新城子盆地铀及多金属矿产勘查遥感应用[J]. 吉林大学学报(地球科学版), 2020, 50(6): 1917-1928.

Wu Yanqing, Wang Shicheng, Ding Yuan, Wang Wenzheng, Yu Honglong, Wang Qing, Li Yang. Application of Remote Sensing in Uranium and Polymetallic Mineral Exploration in Xinchengzi Basin, Inner Mongolia[J]. Journal of Jilin University(Earth Science Edition), 2020, 50(6): 1917-1928.

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