伊犁盆地扎吉斯坦北部西山窑组下段砂体发育特征与铀成矿的关系

基金项目:

全国铀矿资源调查评价计划项目“新疆伊犁盆地南缘可地侵砂岩型铀矿远景调查”(1212011220775)、整装勘查关键基础地质研究计划项目“新疆伊犁盆地砂岩型铀矿整装勘查区关键基础地质研究”(12120114007601)联合资助

详细信息

Sandstone development and uranium mineralization in the lower member of the Xishanyao Formation, northern Zhajisitan, Yili Basin

1. No. 216 Geological Party, CNNC, Urumqi 830011, Xinjiang, China;
2. College of Applied Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu 610059, Sichuan, China;
3. Chengdu Institute of Geology and Mineral Resources, Chengdu 610081, Sichuan, China

摘要: 本文初步研究了扎吉斯坦北部砂体的发育特征与铀成矿的关系。通过对研究区单井剖面、联井剖面以及平面上砂体发育情况的研究与分析,探讨砂体对铀矿体的控制与影响。研究表明,铀矿化发生、发育于砂体厚度相对稳定,粒度较粗,孔隙度、渗透率较好的地段。砂体构形变化的部位是成矿的有利部位,即砂体厚度由厚变薄的过渡地段有利于铀矿的富集。
- 伊犁盆地 /
- 西山窑组下段 /
- 砂岩型铀矿 /
- 铀成矿
Abstract: In the light of a single-well section and a well-tie section and spatial distribution of the sandstones, the present paper focuses on the relationship between the sandstone development and uranium mineralization, and controls and effects of the sandstones on the uranium orebodies in the lower member of the Xishanyao Formation in the northern part of the Zhajisitan area, Yili Basin. The results of research in this study show that the uranium mineralization occurs in the areas with stable thickness, coarser grain sizes and well-developed porosity and permeability of the sandstones. The zones with variable sandstone configurations, i. e., the transitional parts where the sandbodies are thining out are believed to be the favourable zones for the uranium mineralization.
- Yili Basin /
- lower member of the Xishanyao Formation /
- sandstone-type uranium deposit /
- uranium mineralization