郑硌;顾雪祥;章永梅;刘瑞萍;

• 1:中国地质大学地质过程与矿产资源国家重点实验室

摘要(Abstract)：

高松山浅成低温热液金矿床,赋存于下白垩统安山岩等中酸性火山岩中。矿体受围岩中断裂破碎带的控制,呈脉状产出。同位素地球化学研究显示,该矿床成矿溶液系大气降水补给的地下热水;金属组分来自含矿的火山岩内;矿石铅H-H单阶段模式年龄平均值为73.5 Ma,成矿时代属燕山晚期。矿床的形成与地下热水的活动密切相关。当大气降水下渗,经加热并持续溶滤火山岩层中的成矿物质,最终构成含矿地下水热液。含矿地下水热液在环流过程中进入减压带—断裂破碎带时,由于温度、压力、Eh值和pH值等物理化学条件的改变而使热液发生卸载,矿质得以沉淀析出。

关键词(KeyWords)： 同位素地球化学;成因分析;浅成低温热液金矿床;高松山;黑龙江

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(批准号:40930423;40873036);; 国家重点基础研究发展计划(资助号:2009CB421003-01);; 高等学校学科创新引智计划(资助号:B07011)

作者(Authors): 郑硌;顾雪祥;章永梅;刘瑞萍;

DOI: 10.16461/j.cnki.1000-4734.2013.01.008

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