C, O Isotope and REE Geochemistry of the Hydrothermal Calcites from the Tianqiao Pb-Zn Ore Deposit in NW Guizhou Province, China
详细信息
- 责任者：Zhou Jiaxi (State Key Laboratory of Ore Deposit Geochemistry ; Institute of Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China) ; Huang Zhilong
- 刊名：Geotectonica et Metallogenia
- 出版年：2012
- 卷期：36(1)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 碳同位素 ; carbon isotopes ; 氧同位素 ; oxygen isotopes ; 贵州 ; Guizhou Province
- 页码：p.93-101
- 图表：6 illus., 2 tables, 32 refs.
- 分类号：1001
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
摘要
///Hydrothermal calcites from the Tianqiao Pb-Zn ore deposit, NW Guizhou Province, China, were analyzed using Continuous Flow Mass Spectrometry and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for their carbon and oxygen isotope and rare earth elements (REE) compositions. The results show that the C and O isotopic compositions of the hydrothermal calcites are relatively homogeneous, and samples from different elevations show similar C and O isotopic compositions. Comparing the host rocks, unaltered rocks, and altered rocks with the hydrothermal calcites regarding C and O isotopic compositions and REE patterns, the authors believe that the ore-forming fluids were mixture of multiple source fluids, within which the C and REE were mainly sourced from carbonate wall-rocks, the sulfur from the thermo-chemical sulfate reduction of sulfates in the sedimentary strata, and the metamorphic water from underlying basement-rocks such as Kunyang Group, and affected by meteoric water.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |