| 陕西老厂铅锌矿床成矿流体特征及其地质意义 |
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| 引用本文： | 徐鸣,吴军平.陕西老厂铅锌矿床成矿流体特征及其地质意义[J].资源调查与环境,2014,35(4):287-292. |
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| 作者姓名： | 徐鸣 吴军平 |
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| 作者单位： | 1. 南京地质矿产研究所,南京,210016
2. 陕西省地质矿产勘查开发局第三地质队,宝鸡,721300 |
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| 基金项目： | 国土资源大调查项目《秦岭及其邻区成矿条件及选区研究》 |
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| 摘 要： | 陕西老厂铅锌矿床是一个与海相火山岩有关的块状硫化物矿床。老厂铅锌矿床石英流体包裹体的均一温度为93.3~396.5℃,平均值为235.9℃;盐度为0.4~22.5wt%NaCl,平均值为9.9wt%NaCl。原生流体包裹体均一温度测定结果表明其具有近似正态分布的特点;石英流体包裹体的盐度表明,其不成正态分布,且盐度较低。老厂矿床δDV-SMOW‰和δ18 OH2O‰的组成关系反映了其成矿流体为混合热液来源。
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| 关 键 词： | 铅锌矿床 成矿流体 老厂 陕西 |
Geochemical features and geological implications of ore-forming fluids for Laochang lead-zinc deposit in Shanxi Province |
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| XU Ming,WU Jun-ping.Geochemical features and geological implications of ore-forming fluids for Laochang lead-zinc deposit in Shanxi Province[J].Resources Survey & Environment,2014,35(4):287-292. |
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| Authors: | XU Ming WU Jun-ping |
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| Institution: | XU Ming, WU Jun-ping (1 Nanj ing Insititute of Geology and Mineral Resources, Nanj ing 210016, China) (2 No. 3 Geological Party ,Shaanxi Bureau of Geology and Mineral Exploration and Development, Baoji 721300, China) |
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| Abstract: | Laochang lead-zinc deposit is a volcanogenic massive sulfide deposit. The homogenization temperature of fluid inclusions in quartz veins from the deposit are 93.3~396.5 ℃ ,average, 235.9 ℃. The salinities values are 0. 4 ~ 22. 5 wt% NaCI, average , 9. 9 wt% NaCl. The homogenization temperature measurement result of primary fluid inclusions shows that the homogenization temperature data possess features of approximately normal distribution, while the salinity values of fluid inclusions possess no nor- mal distribution and low salinity values. The 3Dv-SMOW% and δ^18 OH2O% component relation of Laochang deposit reflects a mixing hydrothermal source of the ore-forming fluids. |
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| Keywords: | lead- zinc deposit ore-forming fluid Laochang Shanxi Province |
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