| 龚玲兰,奚小双,胡祥昭.河北小石门银金矿床地质地球化学特征与矿床成因[J].地质找矿论丛,2007,(4):282-286 |
| 河北小石门银金矿床地质地球化学特征与矿床成因 |
| THE GEOLOGICAL-GEOCHEMICAL CHARACTERISTICS AND GENESIS OF THE XIAOSHIMEN SILVER-GOLD DEPOSIT, HEBEI PROVINCE |
| 投稿时间：2006-06-28 修订日期：2006-09-28 |
| DOI：10.6053/j.issn.1001-1412.2007.4. 008 |
| 中文关键词: 小石门银金矿床 地质特征 硫同位素 稀土元素 矿床成因 河北省 |
| 英文关键词:Xiaoshimen silver-gold deposit geological characteristics sulfur isotopec REE, deposit genesis Hebei province |
| 基金项目:科研项目《河北省平泉县小寺沟地区成矿规律及预测》资助 |
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| 中文摘要: |
| 河北小石门银金矿床位于小寺沟斑岩铜钼矿床的南西侧。矿体呈脉状、透镜状,银金矿化受NNE向断裂控制,成矿与杂岩体及二长斑岩有关;矿物组合主要为中低温矿物组合,成矿温度240~365℃;流体包裹体研究表明成矿流体富硫,有较高的K+,NH4+,Ca2+和Na+,成矿热液为岩浆热液;硫同位素分析显示,硫来源于岩浆;稀土元素分析亦表明成矿物质来自于二长斑岩及小寺沟岩体,而铅锌矿可能部分来源于地层。推断小石门银金矿床为中低温热液矿床。 |
| 英文摘要: |
| The Xiaoshimen silver-gold deposit is a deposit newly discovered which located in southwest of the Xiaosigou porphyry copper-molybdenum deposit.The ore body is in vein or lens.The silver-gold mineralizations are mainly controlled by NNE faults,and connected with the Xiaosigou magamatic body and ivernite.Mineral assemblage is mainly medium-low-temperature mineral.The ore-forming temperatures are in the range of 240-365℃.Fluid inclusion studies indicate that the ore-forming fluid is rich in sulfur,and has higher K+,NH4+,Ca2+,Na+ content.The ore-forming fluid is mainly composed of magmatic water.Sulfur isotopic results indicate that sulfur of the deposit come from the magmatic system.REE investigations also show that the ore-forming materials originate from ivernite and the Xiaosigou magamatic body,and lead-zinc ore maybe partly come from the stratum.According to these data,the Xiaoshimen silver-gold deposit can be deduced to be a medium-low-temperature hydrothermal deposit. |
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