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研究了阿尔丹含金云母区岩石中银和金的分布特点。这些岩石形成于该区两个依次发展的地质阶段:区域变质作用阶段和超变质作用阶段。第一阶段岩石为麻粒岩相基性结晶片岩和片麻岩。这些岩石平均含金6.8mg/t,含银74mg/t。金、银的这种含量主要取决于它们在原岩中的原始浓度。麻粒岩相岩石的超变质作用伴随有这两种元素的带出现象:暗色钾长混合岩含有5.4mg/t的Au和47mg/t的Ag。在新生的矿物共生组合之间,银也可能发生了局部再分配。所有岩石的Ag/Au比值很不稳定且变化无规律,这证明在超变质作用过程中这两种元素的性状是不相同的。
The distribution characteristics of silver and gold in the rocks of the Ardan-bearing mica are studied. These rocks formed in the area two successive geological stages: regional metamorphism and ultra metamorphism stage. The first stage rocks are granulite-facies crystalline schist and gneiss. The average gold content of these rocks 6.8mg / t, silver 74mg / t. This content of gold and silver depends mainly on their original concentration in the original rock. The metamorphism of the granulite facies rocks is accompanied by the presence of these two elements: the dark-kinite long mixed rock contains 5.4 mg / t Au and 47 mg / t Ag. Silver may also undergo partial redistribution between nascent mineral assemblages. The Ag / Au ratio for all rocks is very unstable and varies irregularly, demonstrating that the traits of the two elements are different during the metamorphism.