灰色片麻岩(gray gneiss)是太古代地盾区常见的一类岩石,它们是构成原始古大陆的基本物质,并和太古代绿岩带有着密切的时空联系。因此,对该类岩石的研究有助于认识和了解地球早期原始古大陆的形成和大陆壳的演化,有助于了解地球演化的历史及成矿规律。 Gray gneiss is a common type of rock in the Archean Shield Zone. They are the basic materials that make up the primitive Paleozoic continent and are closely linked with the Archean greenstone belt. Therefore, the study on this type of rock helps to understand and understand the formation of the ancient proto-continental continent and the evolution of continental crust, which helps to understand the history of the evolution of the earth and its metallogenic regularity.