Geochemistry of Fluorite and Its Genesis in Sickl Area,
详细信息
- 责任者：Rao Hongjuan (Energy School ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Luo Ping
- 刊名：Acta Sedimentologica Sinica
- 出版年：2010
- 卷期：28(4)
- 关键词：萤石矿床 ; fluorspar deposit ; 岩石地球化学 ; lithogeochemistry ; 塔里木盆地 ; Tarim Basin
- 页码：p.821-831
- 图表：10 illus., 2 tables, 25 refs.
- 分类号：1002
- issnNo：ISSN1000-0550
- isbnNo：CN62-1038/P
摘要
Geochemistry of fluorite deposit and its ore rocks in Sickl area, Tarim Basin is applied to investigate the ingenesis. The study shows that: relative LREE concentration and positive Eu anomaly are resulted from REE distribution pattern diagrams of fluorite; Eu, Sr and Ba are related closely in trace element analysis; the isotope ratio of Sr in fluorite is close to that in surrounding rocks. Conclusions are: ore-forming fluids of the fluorite mainly are from the infiltration of heated basin brine; trace elements (including REE) are from underlying strata and surrounding rocks; and elements F, Ba, Eu are from Lower Cambrian siliceous rocks and phosphorite.