- 责任者：Li Jie (College of Applied Nuclear Technology and Automation Engineering ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Yang Lixin
- 刊名：Geological Survey and Research
- 出版年：2011
- 卷期：34(3)
- 关键词：金矿 ; gold ores ; 稀土元素 ; rare earths ; 苏丹 ; Sudan
- 页码：p.215-219
- 图表：2 illus., 3 tables, 12 refs.
- 分类号：1001
- 出版序号：430
- issnNo：ISSN1672-4135
- isbnNo：CN12-1353/P
Based on the study about REE content in the Alhagagia gold deposit and its wall rocks in Sudan, it is found that the REE total content of the wall rocks is higher than the ore minerals’. The fractionation of HREE and LREE is obvious with moderate or slightly negative Eu anomaly and stable content of Ce, which indicates that the ore formed in the deoxidized environment. According to the Chondrite-normalized and NASC-normalized REE patterns of the wall rocks, it is suggested that the metamorphosed basement formed in an oceanic island arc tectonic environment, and there are no much marine facies materials joining in this diagenetic stage. The REE geochemical features of the wall rocks and ores show the ore-forming materials came from metamorphosed basement as well as deep materials.