文章摘要
赵 磊.准噶尔盆地西缘车排子地区砂岩型铀矿成矿潜力及找矿方向[J].地质与勘探,2021,57(3):507-517
准噶尔盆地西缘车排子地区砂岩型铀矿成矿潜力及找矿方向
Mineralization potential and prospecting direction of sandstone-type uranium deposits in the Chepaizi area in the western margin of Junggar Basin
投稿时间：2020-08-19  修订日期：2021-02-02
DOI：10.12134/j.dzykt.2021.03.004
中文关键词: 砂岩型铀矿 成矿潜力 找矿方向 沙湾组 车排子地区 准噶尔盆地
英文关键词: Sandstone-type uranium deposit, metallogenic conditions, exploration direction,Shawan Formation, Chepaizi area, Junggar Basin
基金项目:中国地质调查局项目（编号：DD20190121-15）和中国冶金地质总局山东局科研项目（编号：SDYJ-KY202005）联合资助
作者单位E-mail
赵 磊 中国冶金地质总局山东正元地质勘查院，山东济南；中国冶金地质总局矿产资源研究院，北京；中国石油化工股份有限公司胜利油田分公司勘探开发研究院，山东东营； 中国石油化工股份有限公司新疆新春石油开发有限责任公司,山东东营； 中国冶金地质总局，北京 15153153565@163.com 
摘要点击次数: 1797
全文下载次数: 572
中文摘要:
      砂岩型铀矿作为一种重要的铀矿类型，以其开采成本低、环境影响小、经济效益好成为当今铀矿勘查主攻方向。准噶尔盆地周缘具有巨厚的沉积地层和巨大的斜坡带,是我国砂岩型铀矿重要的找矿靶区。本次研究针对准噶尔盆地西缘车排子地区，通过γ测井、矿化砂体地球化学和地下水地球化学特征研究，结合区域构造条件、铀源条件、水文地质条件、矿化砂体地质特征和放射性异常等砂岩型铀矿成矿条件和找矿标志，分析车排子地区砂岩型铀矿成矿方式和可能的找矿方向。研究认为，车排子地区具有优越的砂岩型铀矿成矿地质条件，其中油气还原作用是铀成矿的主要方式，新近系沙湾组是铀成矿的主要层位，砂体的高孔隙度和渗透性以及所处良好的氧化还原环境是有利的铀成矿条件。
英文摘要:
      Sandstone-type uranium deposits have become the major exploration direction of uranium deposits because of their low mining cost, small environmental impact and good economic benefits.The Junggar Basin is an important prospecting target for such uranium deposits in China featured by thick sedimentary strata and large slope belts. This study aims at research methods of the sandstone-type uranium metallogenic mode and possible prospecting direction in the Chepaizi area located in the western margin of Junggar Basin. It builds on the γ logging and geochemistry characteristics of mineralized sand bodies and groundwater. Combining with regional structures, uranium sources, hydrogeological conditions, geological characteristics of mineralized sand bodies and radioactive anomalies, this study suggests the Chepaizi area has excellent geological settings for sandstone-type uranium mineralization, and indicates the sandstone in the Neogene Shawan Formation is a favorable mineralization horizon with metallogenic type of oil-gas reduced uranium. High porosity and permeability of sand bodies and a well-developed redox environment are favorable conditions for uranium mineralization in this area.
查看全文   查看/发表评论  下载PDF阅读器
关闭