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胶东西北部金矿床分为三种矿化类型,即蚀变岩型、石英脉型、过渡型,统称为玲珑—焦家式金矿.它们具有明显的同源共生关系,为同一构造动力作用下产物,因而具有相近的成矿物质组分、成矿温度、成矿压力和相近的稳定同位素及稀土组成.这些矿床的差异仅表现在成矿围岩、矿体形态、矿体规模及产状、矿化特征、矿石自然形态等方面.这些差别主要是由于控矿控岩的构造作用、构造部位、断裂性质的差别以及构造—岩浆活动晚期所发生的构造驱动力和分异作用的差异所致.蚀变岩型矿床多发育在变形强烈的构造挤压、剪切部位,赋矿断裂产状多较缓,倾向NW,围岩蚀变发育;石英脉型矿床多出现在引张及剪张部位,赋矿断裂产状较陡,多倾向SE,围岩蚀变较弱;过渡类型矿床出现在两者之间.各矿化类型在垂向及侧向上都有着渐变过渡关系,水平分带性明显
The gold deposits in the northern part of Jiaodongxi are divided into three types of mineralization, that is, altered rock type, quartz vein type and transitional type, collectively referred to as Linglong-Jiaojia Gold Mine. They have obvious symbiotic relationship and are the products of the same tectonic motions. They have similar metallogenic composition, metallogenic temperature, metallogenetic pressure and similar stable isotopes and rare earth compositions. The difference between these deposits is only manifested in the metallogenic rock, ore body morphology, ore body size and occurrence, mineralization characteristics, ore natural morphology and so on. These differences are mainly attributed to the tectonism, tectonic setting, the nature of faults and the difference of tectonic driving force and differentiation in late stage of tectonomagnetism. Alluvial rock deposits are mostly developed in the strong deformed tectonic extrusion and shear, and the occurrence of ore-bearing faults is more prone to occur, with a tendency of NW and wall rock alteration. The quartz vein type deposits mostly appear on the part of lead and shear , The occurrence of ore-bearing faults is steeper, more prone to SE, and the alteration of wall rocks is weaker; transition type deposits occur between the two. Each type of mineralization has a gradual transitional relationship in vertical and lateral direction, with obvious horizontal zonation