Geochemical Characteristics and Causes of Wall Rock Alteration in the No.302 Uranium Deposit, Northern oft-com:office:smarttags" />Guangdong Province
详细信息
- 责任者：Gao Xiang (Laboratory Center of Geology ; China University of Geosciences ; Beijing 100083 ; China) ; Shen Weizhou
- 刊名：Acta Petrologica et Mineralogica
- 出版年：2011
- 卷期：30(1)
- 关键词：铀矿 ; uranium ores ; 广东 ; Guangdong Province
- 页码：p.71-82
- 图表：9 illus., 3 tables, 16 refs.
- 分类号：1001
- issnNo：ISSN1000-6524
- isbnNo：CN11-1966/P
摘要
With the drill hole ZK23-2 as the object and the microscopic slice identification and the geochemical analysis of fluid inclusions of the ore-forming period as the main means, this paper mainly studied wall rock alteration of the No.302 uranium deposit. The results show that the ore deposit has a variety of alterations, which are composed of such types as alkali feldspathization, silicification, sericitization, hematitization, chloritization, epidotization, carbonation,and kaolinitization. The ore deposit shows obvious vertical and horizontal zoning. From the top to the bottom of the ZK23-2 drill hole, four alteration zones were recognized, i.e., red-sericitization zone→intense silicification red alteration-sericitization zone (uranium enrichment zone)→chloriti-zation-sericitization zone→ weak alteration or normal granite zone.