砂岩型铀矿床中SiO2／Al2O3比值与含矿性的关系研究：以库捷尔太和乌库尔其铀矿床为例

砂岩型铀矿床中SiO2／Al2O3比值与含矿性的关系研究：以库捷尔太和乌库尔其铀矿床为例

王金平1 2, 闵茂中1, 陈跃辉3, 彭新建3

1. 南京大学,地球科学系,成矿作用国家重点实验室,南京, 210093; 2.核工业二○三研究所,咸阳, 712000; 3. 核工业地质局,北京, 100013

收稿日期:2005-03-20 修回日期:2005-03-20 出版日期:2005-03-20 发布日期:2005-03-20

Study on the Relationship between SiO2／Al2O3 Ratios andOre-Bearing Capacity in Interstratified Oxidized Zone：Exemplified by Kujieertai and Wukuerqi Uranium Deposits

WANG Jin-ping1 2, MIN Mao-zhong1, CHEN Yue-hui3, PENG Xin-jian3

1. Earth Sciences Department, Nanjing University, Nanjing 210093, China; 2. Research Institute No.203, CNNC, Xiangyang 712000, China; 3. Bureau of Geology, CNNC, Beijing 100013, China

Received:2005-03-20 Revised:2005-03-20 Online:2005-03-20 Published:2005-03-20

摘要/Abstract

摘要： 对库捷尔太和乌库尔其铀矿床进行了详细的层间氧化带的分带研究,在此基础上分析了主要元素Si,Al,Fe在层间氧化带各亚带中的迁移规律。研究表明,被认为稳定元素的So,Al在砂岩层间氧化过程中具有明显的变化规律：Si在氧化带具迁出特征,并随氧化作用的减弱而迁出的份额有规律的减少；而Al的地球化学行为则相反。不同的SiO2／Al2O3比值能够反映层问氧化带的含矿性。

Abstract: Based on the detailed subzone division for Kujiertai and Wukuerqi uranium deposits，this paper studies the migration regularities of major elements in various subzones of interstratified oxidized zone．Some major elements including SiO2 and A1203 appear relatively active during the interstratified oxidation．However．such phenomenon has not been traced enough previously in literature．Si has a migration out behavior and its contents in the host rocks regularly decrease with intensifying oxidation．On the contrary，the Al contents regularly increase with intensifying oxidation．The relationship between Si and A1 shows that different Si02／A1203 ratios can indicate if the interstratified oxidized zone is ore-bearing or ore-barren

王金平 , 闵茂中, 陈跃辉, 彭新建. 砂岩型铀矿床中SiO2／Al2O3比值与含矿性的关系研究：以库捷尔太和乌库尔其铀矿床为例[J]. J4.

WANG Jin-ping1 2, MIN Mao-zhong1, CHEN Yue-hui3, PENG Xin-jian3. Study on the Relationship between SiO2／Al2O3 Ratios andOre-Bearing Capacity in Interstratified Oxidized Zone：Exemplified by Kujieertai and Wukuerqi Uranium Deposits[J]. J4.