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一、板状硼鎂石矽卡岩型矿床的地质特征板状硼鎂石矽卡岩型矿床产在古老地台上,其围岩为前古生代变粒岩类,旷体賦存于变粒岩中的白云菱鎂大理岩透鏡体內。变粒岩一般由角閃岩相的区域变貭岩所組成,其主要变种为黑云母粒岩及花崗状粒岩(或混合花崗岩),在矿床产出区常見到电气石粒岩。变粒岩中并夹有斜长角閃岩透镜体。变粒岩普遍遭受了混合岩化作用,有很多伟晶状石英长石脉沿层理及交叉层理貫入。白云菱鍈大理岩属
First, the geologic characteristics of the plate-shaped borophosphosic skarn deposits Banded borophite skarn deposits on the ancient platform, the surrounding rock for the former Paleozoic granulites, excavated in the presence of particles Magnesite white marble magnesite marble lens. Granulites are generally composed of amphiboles from amphibolite facies. The main types of metamorphic rocks are biotite and granitoids (or mixed granites), and tourmaline grains are common in the ore-producing areas. Pergite and sandwiched amphibolite lens body. Granulites generally suffer from mixed rock formation. There are many great-grained quartzite veins along the bedding and cross bedding. White Ling Ling Ling marble