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	Au-Sb association and fractionation in micro-disseminatedgold deposits, southwestern Guizhou——geochemistry andthermodynamics
	ZHU Laimin; HU Ruizhong
	2000
发表期刊	Science in China
卷号	43期号:2页码:208-216
合作性质	其它
其他摘要	The dual geochemical character of paragenesis and fractionation between gold, arsenic and antimony in micro-disseminated gold deposits in southwestern Guizhou is discussed in terms of spatial distribution of independent deposits, lateral and vertical enrichment, mineralization stage and factor and correlation analyses. Thermodynamic calculations of solubility and speciation of gold and antimony minerals indicate that gold is transported in hydrothermal solution as Au(HS)- 2 and antimony is mainly as Sb (OH03 ) although HSb2S- 4 may be of increasing importance in acid environment at low temperatures during the late stage of mineralization. Changes in physicochemical conditions hold the key to the association and fractionation between gold and antimony. Gold and antimony response differently to physicochemical variations because they are distinct from each other in soluble speciation and mineral solubility, leading to precipitation at different times and localities during hydrothermal evolution.
学科领域	中国典型特殊区带大规模成矿作用及其动力学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/3078
专题	矿床地球化学国家重点实验室_矿床地球化学国家重点实验室_期刊论文 矿床地球化学国家重点实验室
推荐引用方式 GB/T 7714	ZHU Laimin,HU Ruizhong. Au-Sb association and fractionation in micro-disseminatedgold deposits, southwestern Guizhou——geochemistry andthermodynamics[J]. Science in China,2000,43(2):208-216.
APA	ZHU Laimin,&HU Ruizhong.(2000).Au-Sb association and fractionation in micro-disseminatedgold deposits, southwestern Guizhou——geochemistry andthermodynamics.Science in China,43(2),208-216.
MLA	ZHU Laimin,et al."Au-Sb association and fractionation in micro-disseminatedgold deposits, southwestern Guizhou——geochemistry andthermodynamics".Science in China 43.2(2000):208-216.

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