地壳深部岩浆岩岩基体与大型、超大型金属矿床的形成及找矿效应  

Magmatic rock mass and information for large and superlarge mineral deposits and its ore-prospecting effect in deep crust

作　　者：滕吉文[1,2] 姚敬金[3] 江昌洲 闫雅芬[1] 杨辉[1] 张永谦[1] 阮小敏[1] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]吉林大学,长春130026 [3]中国地质科学院地球物理地球化学勘查研究所,廊坊102849 [4]安徽省地矿局,合肥230009

出　　处：《岩石学报》2009年第5期1009-1038,共30页Acta Petrologica Sinica

基　　金：2007年中国科学咨询项目;中国科学院知识创新项目(KZCX2-104)联合资助

摘　　要：基于部分大型、超大型金属矿床和多金属矿集区的地球物理研究发现:地壳内部物质在热动作用下,深部物质和能量强烈的在交换,当深部热液沿通道(破碎带、软弱岩层或断裂系)上涌时,在深部适宜的岩层部位聚积,并形成大型或较大型的酸性、中酸性或基性的岩基体(镁铁质、超镁铁质)。这些类型的岩浆岩以其携带的热能驱动着深部物质重新分异和调整,并在这一动力作用过程中与围岩进行交代、蚀变,并促使其不断变质。在这样的深部介质和构造环境下矿物元素得以在大型或较大型岩基体附近与周边介质耦合,逐使矿物元素不断聚积,并形成大型、超大型金属矿床和多金属矿集区。Geophysical study based on parts large, super large and polymetallic deposits discover, substance and energy intense exchanges in depths of Earth under the affect of heat power. When hydrothernal (magma) upwelling along channel (shatter belt, weak formation or faults), the mineral elements are congregated in deep suitable position of rock stratum. it is necessary that there are formed large and relatively large in acidity, intermediate acidity and basic-ultrabasic magmatic rock mass at the same time. There these types magmatic rock are carried thermal energy and actuated the deep matter divergence, regulate again replacement, alteration and metamorphism with effect of wall rocks. In this deep process and under environment of medium and structure, mineral elements are congregated nearby the large or relatively large magmatic rock mass and coupling. Thus there are formated large, superlarge and polymetallic deposits.

关 键 词：地壳 岩浆上涌 岩基体 金属矿床 深层过程 

分 类 号：P611[天文地球—矿床学]