The role of vapor in the transportation of tin in hydrothermal systems Experimental and case study of the Dachang deposit, China

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	The role of vapor in the transportation of tin in hydrothermal systems Experimental and case study of the Dachang deposit, China
	Zhang, RH (Zhang, Ronghua); Zhang, XT (Zhang, Xuetong); Hu, SM (Hu, Shumin)
刊名	JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
	2008
卷号	173 期号:3-4 页码:313-324
关键词	two-phase immiscibility field partitioning of tin between liquid and vapor critical state tin deposit vapor transport
ISSN号	0377-0273
英文摘要	In order to understand metal transportation by vapor, which was found by detecting volcanic gases, authors performed vapor-liquid separation experiments at sub-critical states. The experiments indicate that the metal transportation by vapor of hydrothermal systems is derived from the liquid and vapor separation occurred in the transitions from a supercritical state to liquid-vapor immiscibility field at a sub-critical state of metal bearing hydrothermal fluids of NaCl-H2O. The data of the fluid inclusions in minerals suggest that major ores were deposited in the temperature range from 300 to 500 degrees C in hydrothermal systems. The study on fluid inclusions in minerals of hydrothermal deposits provides evidence that the principal ore minerals of the deposits precipitated in the period from a supercritical state to a sub-critical state of the NaCl-H2O. A case study of fluid inclusions in minerals of the Dachang tin deposit, China indicates the evolution of ore-forming fluids occurred in the L-V immiscibility field of NaCl-H2O. The experiments of liquid and vapor two-phase immiscibility field of a tin bearing fluid show that Sn was redistributed in vapor phase and liquid phase, when the tin bearing supercritical fluid (NaHCO3-HCl-H2O) separates into liquid and vapor phases for a decreasing in temperature or pressure. The experiments prove that tin could be transported by vapor phase in hydrothermal systems. (C) 2008 Elsevier B.V. All rights reserved.
学科主题	矿床地质
WOS关键词	SYNTHETIC FLUID INCLUSIONS ; ELEVATED-TEMPERATURES ; HIGH-PRESSURES ; PORPHYRY COPPER ; WATER-VAPOR ; NACL ; SOLUBILITY ; EQUATION ; QUARTZ ; GOLD
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000257352900013
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38641]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, Inst Mineral Resources, Lab Geochem Kinet, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Zhang, RH ,Zhang, XT ,Hu, SM . The role of vapor in the transportation of tin in hydrothermal systems Experimental and case study of the Dachang deposit, China[J]. JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,2008,173(3-4):313-324.
APA	Zhang, RH ,Zhang, XT ,&Hu, SM .(2008).The role of vapor in the transportation of tin in hydrothermal systems Experimental and case study of the Dachang deposit, China.JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH,173(3-4),313-324.
MLA	Zhang, RH ,et al."The role of vapor in the transportation of tin in hydrothermal systems Experimental and case study of the Dachang deposit, China".JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH 173.3-4(2008):313-324.