Occurrence Characteristics of Uranium in Sandstone Type Uranium Deposit in a Region Area of Ordos Basin

马晔; 陈伟男; 卞利; 王文波

doi:10.16056/j.2096-7705.2022.02.012

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Occurrence Characteristics of Uranium in Sandstone Type Uranium Deposit in a Region Area of Ordos Basin

更新时间：2026-01-19

- Occurrence Characteristics of Uranium in Sandstone Type Uranium Deposit in a Region Area of Ordos Basin
- Issue 2, Pages: 68-73(2022)
- 作者机构：
  
  中陕核工业集团二二四大队有限公司
- 作者简介：
- 基金信息：
- DOI：10.16056/j.2096-7705.2022.02.012
  CLC： P619.14
- Published：2022
- 稿件说明：
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马晔, 陈伟男, 卞利, et al. Occurrence Characteristics of Uranium in Sandstone Type Uranium Deposit in a Region Area of Ordos Basin[J]. 2022, (2): 68-73.
DOI：

马晔, 陈伟男, 卞利, et al. Occurrence Characteristics of Uranium in Sandstone Type Uranium Deposit in a Region Area of Ordos Basin[J]. 2022, (2): 68-73. DOI： 10.16056/j.2096-7705.2022.02.012.

摘要

为查明某地区砂岩性铀矿勘查区铀的赋存特征，本次工作利用野外观察，结合室内岩矿鉴定、扫描电镜、能谱分析、电子探针分析等技术，对工作区含矿砂岩进行了详细研究，发现该地区铀矿石主要产于中侏罗统直罗组下段上亚段、直罗组下段下亚段和延安组顶部底层的灰绿色细砂岩、灰色含砾粗砂岩、黄色和黄褐色中砂岩中，含矿砂体的矿物组合主要有石英、方解石、钾长石、钠长石、绿泥石等，含矿砂岩富含黄铁矿和有机质，铀矿物以铀石为主，没有以类质同像或者吸附形式存在于黄铁矿中，主要是以铀矿物和分散吸附的形式存在于黄铁矿或者其他矿物的裂隙中，通过研究发现该地区砂岩的赋存形式，有利用地侵开采，为该地区下一步铀矿开采提供依据。

Abstract

In order to find out the occurrence characteristics of uranium in sandstone uranium exploration area of a region area

this work used field observation

combined with indoor rock ore identification

scanning electron microscopy

energy spectrum analysis

electron probe analysis and other techniques to carry out a detailed study of ore-bearing sandstone in the working area. Found that uranium ore is mainly produced in the region in the Jura straight

group under section on the segment

straight

group under section under the period of yanan group and the top at the bottom of the celadon gray fine-grained sandstone and conglomeratic sandstone in thick sandstone

yellow and brown

the main mineral composition containing ore body are quartz

calcite

potash feldspar

sodium feldspar

chlorite

mineral bearing sandstone is rich in pyrite and organic matter

uranium ore with uranium stone is given priority to

not in the form of the class with like or adsorption exists in pyrite

mainly in the form of uranium ore and dispersed adsorption exists in pyrite or other mineral fissure

through the study found that the region the occurrence form of sandstone

favorable land assault drilling

provide the basis for the next step of uranium mining in the region.

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