山西平顺西安里铁矿成矿流体特征及演化

对西安里铁矿床蚀变矿物（透辉石、石榴子石、绿帘石和方解石）流体包裹体进行了岩相学、均一温度、盐度和H一0同位素组成分析研究，结果表明：透辉石中流体包襄体均一温度为515℃～622％，盐度（W（NaCI））为48～75；石榴子石均一温度为475～525℃，w（NaCl）均小于26wt％NaCI；绿帘石均一温度为390～440℃，盐度主要分布在40wt％ NaCI左右；方解石均一温度为14I～4066℃，w（NaCI）为6．74～21．11；石榴石、透辉石的δD-SMCW，Ⅵ值介于-106‰～-86‰，δ18O-SMOW。值介于6．7～8．7‰，δ18O-SMOW。值介于2．7‰～8．7‰磁铁矿δ...

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Published in地质与勘探 Vol. 50; no. 1; pp. 67 - 76
Main Author 张海东 刘建朝 张苏楠 陈正乐 王永 吴继莲
Format Journal Article
LanguageChinese
Published 2014
Subjects
H—0同位素
戍矿流体特征
西安里铁矿床
钠化蚀变
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Summary:对西安里铁矿床蚀变矿物（透辉石、石榴子石、绿帘石和方解石）流体包裹体进行了岩相学、均一温度、盐度和H一0同位素组成分析研究，结果表明：透辉石中流体包襄体均一温度为515℃～622％，盐度（W（NaCI））为48～75；石榴子石均一温度为475～525℃，w（NaCl）均小于26wt％NaCI；绿帘石均一温度为390～440℃，盐度主要分布在40wt％ NaCI左右；方解石均一温度为14I～4066℃，w（NaCI）为6．74～21．11；石榴石、透辉石的δD-SMCW，Ⅵ值介于-106‰～-86‰，δ18O-SMOW。值介于6．7～8．7‰，δ18O-SMOW。值介于2．7‰～8．7‰磁铁矿δ18O-H2O值介于2．6‰～6．2‰综合分析认为：热液主要来源于岩体，在上升过程中萃取了围岩中Na和Cl，Na的加入使大量h析出，并与Cl结合进行迁移．流体物理化学特征具有显著的变化，导致Fe质析出形成西安里铁矿床、
Bibliography:11-2043/P
ZHANG Hai-dong, LIU Jian-chao ,ZHANG Su-nan , CHEN Zheng-le , Wang Yong , Wu Ji-lian （ 1. Resource College of Chang＇ an University, Xi＇ an, Shaanxi 710054; 2. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081 ）
Xi＇ anli iron deposit, characteristics of ore-forming fluids, natriumzation, H - 0 isotopes
This work studies the fluid inclusions from altered minerals （ diopside, garnet, epidote, and calcite） in the Xi＇ anli iron deposit of Shanxi Province based on their petrography, homogenization temperature, salinity, and H - O isotopic compositions. The results show that homogenization tem- perature of the fluid inclusions in diopside varies from 515℃ to 622℃, and their salinity is between 48 and 75. Fluid inclusion homogenization tempera- ture of garnet is from 475℃ to 525℃ , with w（NaC1） less than 26 wt%. Fluid inclusion homogenization temperature of epidote is in 390 N440℃ , with salinity 40wt% NaC1. Fluid inclusion homogenization temperature and salinity of calcite are
ISSN:0495-5331