| 燕山地区银矿成矿时代与成矿物质来源探讨 |
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| 引用本文： | 李久明,巩恩普,姚玉增,于海纲.燕山地区银矿成矿时代与成矿物质来源探讨[J].地质与资源,2006,15(3):179-186. |
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| 作者姓名： | 李久明 巩恩普 姚玉增 于海纲 |
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| 作者单位： | 东北大学 资源与土木工程学院, 辽宁 沈阳 110004 |
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| 摘 要： | 通过大量的K-Ar同位素年龄和硫、铅、氢-氧同位素数据统计、对比分析，认为燕山地区陆相火山-次火山岩型银矿床与著名的环太平洋东带陆相火山岩型银矿床有着明显的差别.本区银矿成矿时代为195~100Ma；成矿物质以深部来源为主，兼有基底和盖层物质加入；成矿热液主要是岩浆水中混入大量天水的混合水.
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| 关 键 词： | 火山-次火山岩型银矿床 成矿时代 同位素 成矿物质来源 |
| 文章编号： | 1671-1947（2006）03-0179-08 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-05-23 |
DISCUSSION ON THE METALLOGENETIC EPOCH AND ORE-FORMING MATTER SOURCE OF THE SILVER DEPOSITS IN YANSHAN AREA |
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| LI Jiu-ming,GONG En-pu,YAO Yu-zeng,YU Hai-gang.DISCUSSION ON THE METALLOGENETIC EPOCH AND ORE-FORMING MATTER SOURCE OF THE SILVER DEPOSITS IN YANSHAN AREA[J].Geology and Resources,2006,15(3):179-186. |
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| Authors: | LI Jiu-ming GONG En-pu YAO Yu-zeng YU Hai-gang |
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| Institution: | School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China |
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| Abstract: | The statistics and analysis on K-Ar ages and sulfur,lead and hydrogen-oxygen isotope data show that,the terrestrial volcanic-subvolcanic silver deposits in Yanshan area are obviously different from those in the eastern circum-Pacific belt.The metallogenetic epoch of the silver deposits in Yanshan area ranges from 195 to 100 Ma.The ore-forming matters are mainly deep-sourced,with addition of fundamental and cover material.The hydrothermal ore-forming solution is dominated by magmatic water mixed with meteoric water. |
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| Keywords: | volcanic-subvolcanic silver deposit metallogenetic epoch isotope source ore-forming matter |
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