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辽宁下前寒武系Au元素丰度,总体低于陆壳克拉克值。其中,太古界(包括鞍山群,建平群)相对高于下元古界(包括辽河群、榆树砬子群),表明了Au元素丰度随基底地壳演化而趋于贫化。在不同构造分区,Au元素的分布存在一定的差异,说明各区的地壳演化历史不尽相同。而Au元素的分布与分配特征,与影响Au元素的迁移、聚集的地质作用因素——区域变质作用、超变质作用、韧性剪切构造作用和岩浆侵位——有关。
The elemental abundance of Au in the Lower Precambrian in Liaoning Province is generally lower than that of the continental crust. Among them, the Archean (including Anshan Group, Jianping Group) is relatively higher than the Proterozoic Proterozoic (including the Liaohe Group, Ulmus subunit group), indicating that Au abundance tends to be depleted with the evolution of the basement crust. There are some differences in the distribution of Au elements in different tectonic zoning, indicating that the crustal evolution history of each area is not the same. However, the distribution and distribution of Au are related to the migration and accumulation of Au, regional metamorphism, metamorphism, ductile shear structure and magma emplacement.