Sr isotope constraints on the age and source of ore-forming materials of gold deposits, southwestern Hunan

被引：0
|
作者：
Peng J. [1 ]
Hu R. [1 ]
Dai T. [2 ]
机构：
[1] Institute of Geochemistry, Chinese Academy of Sciences
[2] Department of Geology, Ctrl. South University of Technology
来源：
Chinese Journal of Geochemistry | 2000年 / 19卷 / 2期
关键词：
Gold deposit; Hunan; Source of ore-forming materials; Sr isotope;
D O I：
10.1007/BF03166874
中图分类号：
学科分类号：
摘要：
We have measured Rb and Sr concentrations in fluid inclusions of quartz in gold deposits, southwestern Hunan. The Rb-Sr isochron ages of 435 ± 9Ma and 412 ± 33Ma are respectively determined, revealing that gold mineralization in this area took place in the Caledonian period rather than in the Wuling-Xuefeng period as traditionally considered. Sr isotope geochemistry of the hydrothermal fluid indicates that the ore-forming materials are of crust origin, derived largely from the ore-hosting strata rather than from the basic dikes.
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页码：175 / 180
页数：5
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