• 首页
  • 学报简介
  • 编委会
  • 投稿指南
  • 订阅指南
  • 过刊浏览
  • 在线投稿
  • 联系我们
  • 网络预出版
  • English

本文将参加年度优秀论文评选,如果您觉得这篇文章很好,请投下您宝贵的一票,谢谢! 支持(0)   不支持(0)

松辽盆地西南部砂岩型铀矿中局部排泄源的控矿作用与成矿模式研究
投稿时间:2020-05-11  修订日期:2020-07-10  点此下载全文
引用本文:
DOI:10.19762/j.cnki.dizhixuebao.2021001
摘要点击次数: 116
全文下载次数: 136
作者单位地址
丁波 中核集团铀资源勘查与评价重点实验室 北京市朝阳区小关东里10号院
刘红旭 中核集团铀资源勘查与评价重点实验室 北京市朝阳区小关东里10号院
刘章月 中核集团铀资源勘查与评价重点实验室 
贾立成 中核集团铀资源勘查与评价重点实验室 
章展铭 中核集团铀资源勘查与评价重点实验室 
基金项目:国家重点基础研究发展计划(973计划)
中文摘要:随着松辽盆地西南部砂岩型铀矿勘查与研究的深入,构造天窗作为局部排泄源的认识在指导找矿方面效果明显。然而,现阶段对研究区局部排泄源与铀成矿的内在关系研究相对薄弱,尤其是局部排泄源与铀矿空间定位的内在联系以及是否与研究区内发育的板状矿体、双层氧化带与灰色残留体等独特地质现象有关。因此,本文为探讨松辽盆地西南部砂岩型铀矿中局部排泄源的控矿作用,引入地下水流系统理论,提出白兴吐构造天窗局部排泄源的形成改变了原有的补-径-排体系,使得含矿层内存在局部与区域的两套地下水补-径-排体系,并在局部排泄源的附近形成了相对滞流区;局部排泄源主要通过改变含铀含氧地下水的运移方向与速度,来影响层间氧化带发育速度与位置,从而控制含矿层中板状矿体、双层氧化带与灰色残留体的形成及铀矿空间产出位置,并依此建立了研究区砂岩型铀矿成矿模式与找矿模式,不仅丰富砂岩型铀矿成矿理论,也指出后续找矿过程中除了继续围绕构造天窗开展勘查工作外,寻找受区域层间氧化带控制的铀矿可能是研究区铀资源扩大新的突破口。
中文关键词:局部排泄源  构造天窗  板状矿体  铀矿空间定位  松辽盆地
 
Study on the ore-controlling function and metallogenic model of local excretion sources in sandstone-type uranium deposits in southwestern Songliao Basin
Author NameAffiliationAddress
DING Bo CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Techniques,Beijing Research Institute of Uranium Geology,Beijing,100029 北京市朝阳区小关东里10号院
LIU Hongxu CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Techniques,Beijing Research Institute of Uranium Geology,Beijing,100029 北京市朝阳区小关东里10号院
LIU Zhangyue CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Techniques,Beijing Research Institute of Uranium Geology,Beijing,100029 
JIA Licheng CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Techniques,Beijing Research Institute of Uranium Geology,Beijing,100029 
ZHANG Zhanming CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Techniques,Beijing Research Institute of Uranium Geology,Beijing,100029 
Abstract:With the deepening of the exploration and research of sandstone-type uranium deposits in southwestern Songliao Basin, the understanding that construction skylight serves as a local excretion source has obvious effects in guiding prospecting. However, the internal relationship between local excretion source and uranium mineralization is relatively weak at this stage, especially the internal connection between the local excretion sources and the spatial positioning of uranium deposits and whether it is related to the formation of unique geological phenomena such as tabular orebody, double-layer oxidation and gray residual body. Therefore, this paper introduces the theory of groundwater flow system to explore the ore-controlling effect of local excretion source in sandstone-type uranium deposits in southwestern Songliao Basin. It is believed that the formation of the local excretion source of the Baixingtu construction skylight changed the original supplemental – diameter - discharge system, so that there are two sets of local and regional groundwater supplement - diameter - discharge systems in the ore-bearing layer and formed relative stagnation zone near the local excretion source. The local excretion source mainly affects the development speed and position of the interlayer oxidation zone by changing the transport direction and speed of the uranium and oxygen groundwater, thereby controlling the formation of tabular orebody, double-layer oxidation and gray residual body in the ore-bearing layer and the spatial positioning of uranium deposits. Based on this, the sandstone - type uranium metallogenic model and prospecting model in southwestern Songliao Basin were established, which not only enriched the sandstone-type uranium metallogenic theory, but also pointed out that in addition to continuing to carry out exploration work around the construction skylight, looking for uranium deposits controlled by regional interlayer oxidation zones may be a new breakthrough in the expansion of uranium resources in the study area.
keywords:Local excretion source  Construction skylight  Tabular orebody  Spatial positioning of uranium deposits  Songliao Basin
查看全文  查看/发表评论  下载PDF阅读器
您是第37419429位访问者  京ICP备05032737号-7  
版权所有:《地质学报》中文版
主管单位:中国科学技术协会 ; 主办单位:中国地质学会
地  址: 北京市西城区百万庄大街26号; 邮编:100037 ; 电话:010-68312410,010-68999025; E-mail: dizhixuebao@163.com
本系统由北京勤云科技发展有限公司设计 

京公网安备 11010202007916号

WeChat