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Fluid Inclusions of Caixiashan Pb-Zn Deposit in Xinjiang(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2006年第02期
Page:
25-29
Research Field:
Publishing date:

Info

Title:
Fluid Inclusions of Caixiashan Pb-Zn Deposit in Xinjiang
Author(s):
GAO Xiao-li1PENG Ming-xing 2HU Chang-an2 WANG Deng-hong 3LIANG Ting1GAO Jing-gang 1
1. School of Earth Sciences and Resources Management, Chang’ an University, Xi’an 710054, Shaanxi, China; 2. No.1 Geology Party of Geological and Exploration Bureau of Xinjiang, Changji 831100, Xinjiang, China; 3. Institute of Mineral Resources, Chines Academy of Geological Sciences, Beijing 100037, China
Keywords:
fluid inclusion Caixiashan Pb-Zn deposit salinity Xinjiang
PACS:
P618.4
DOI:
-
Abstract:
The fluid inclusions of Caixiashan Pb-Zn deposit are studied by Homogenization Method and Laser Raman Method. The systematical study shows that fluid inclusions in ores include two types: single-phase liquid inclusions (LH2O)and two-phase liquid-vapor inclusions(LH2O+ VH2O). Determination of homogenization temperatures of fluid in- clusions indicates that metallogenetic temperatures of the deposit, ranging from 180℃ to 310℃(usually 190℃ to 220 ℃), is low to moderate. Freezing process shows that freezing temperatures is from -23.2℃ to -0.8℃ , and the nu- merical table of freezing temperatures-salinity(Bodnar,1992)shows that salinity NaCl is from 1.4% to 23.18%. The liquid components of two-phase liquid-vapor inclusions is rich in H2O and gas components is rich in C2O, components of single-phase liquid inclusions shows that H2O> C2O. Theδ18OH2Ovalues from 7~ 8 by Distillation Equation. The re- sults indicate that the forming of the mineral deposit relates to magmation. The mineral deposit should be of low-to-mod- erate-temperature hot liquid origin relevant to acid-intermediate intrusive magmation.

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Last Update: 2006-06-20