目前,地震、构造作用和岩浆活动集中在板块边缘附近。这种情况在大多数地质时期就可能如此。板块内部的大陆岩浆活动和变质作用普遍认为与大陆断裂有关,不过只有当断裂发展到横贯大陆断裂时,它们与板块边缘的关系才是明显的。本文有三个目的:第一,我们强调岩浆、构造和变质作用在大陆板块内部过去和现在都在活动,这些作用决不是只集中于板 At present, earthquakes, tectonism and magmatic activities are concentrated near the edge of the plate. This is probably the case in most geologic times. Continental magmatism and metamorphism within the plate are generally considered to be related to continental fractures, but their relationship to plate margins is only evident when fractures develop to transcontinental fractures. This article has three purposes: First, we emphasize that magma, tectonism and metamorphism have been and continue to be active in the interior of continental plates.