Fluid inclusion geochemistry of Tuwu porphyry copper deposit, eastern Tianshan in Xinjiang

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	Fluid inclusion geochemistry of Tuwu porphyry copper deposit, eastern Tianshan in Xinjiang
	Liu, M (Liu Min); Wang, ZL (Wang ZhiLiang); Zhang, ZH (Zhang ZuoHeng); Chen, WS (Chen WeiShi); Yang, D (Yang Dan)
刊名	ACTA PETROLOGICA SINICA
	2009
卷号	25 期号:6 页码:1446-1455
关键词	Fluid inclusion Geochemistry Porphyry copper deposit Tuwu
ISSN号	1000-0569
英文摘要	Based on a systematical summing-up of the previous research on the geological characteristics and mineralization of Tuwu porphyry copper deposit, the authors carried out supplement measurements of hydrogen and oxygen isotopes, homogeneous and freezing temperatures analysis of fluid inclusions in quartz, gas and ion chromatographic analysis of quartz samples and analysis of REE in fluid inclusions of quartz. The results show that the homogenization temperatures of the fluid inclusions vary from 125 to 363 degrees C, and mostly range from 140 to 200 degrees C. The salinities of fluids range from 0. 18% NaCl to 58. 28% NaCl and mostly range from 2% NaCl to 10% NaCl. The gas components of fluid inclusions are mainly H(2)O and CO(2), and the liquid components of fluid inclusions are mainly Ca(2+), Na(+), SO(4)(2-), Cl(-). The Sigma REE of fluid inclusions range from 8.07 x 10(-6) to 12.15 X 10-6, the LREE/HREE ratios vary from 5.39 to 6.75, and delta Eu ranging from 1.80 to 1.91. The ore fluid in the fluid inclusions display right-inclines chondrite-normalized REE distribution patterns and positive Eu and negative Cc anomaly. The delta D(V-SMOW), of the inclusions in quartz range from similar to 70 parts per thousand to -66 parts per thousand, and the delta(18)O(V-SMOW) values of quartz range from 9.4 parts per thousand to 12.3 parts per thousand. According to the calculated results the delta(18)O(H2O) range from -5.1 parts per thousand to of 1.2 parts per thousand. The results of ion chromatographic analysis showing that the ratio of F(-)/Cl(-) range from 0. 009 to 0. 024, and that 4 Cl(-) range from 0. 45 to 1.01. It is suggested that the ore-forming fluid was mainly derived from mixture fluid of meteoric water with magma water.
学科主题	矿床地质
WOS关键词	DEPRESSION ; MOUNTAINS ; BELT ; ROCK ; AREA
WOS研究方向	Geology
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000267571400015
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/38865]
专题	中国地质调查局
作者单位	Chinese Acad Geol Sci, MLR Key Lab Metallogeny & Mineral Assessment, Inst Mineral Resources, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Liu, M ,Wang, ZL ,Zhang, ZH ,et al. Fluid inclusion geochemistry of Tuwu porphyry copper deposit, eastern Tianshan in Xinjiang[J]. ACTA PETROLOGICA SINICA,2009,25(6):1446-1455.
APA	Liu, M ,Wang, ZL ,Zhang, ZH ,Chen, WS ,&Yang, D .(2009).Fluid inclusion geochemistry of Tuwu porphyry copper deposit, eastern Tianshan in Xinjiang.ACTA PETROLOGICA SINICA,25(6),1446-1455.
MLA	Liu, M ,et al."Fluid inclusion geochemistry of Tuwu porphyry copper deposit, eastern Tianshan in Xinjiang".ACTA PETROLOGICA SINICA 25.6(2009):1446-1455.