syenogabbro

It is well known that the Syenite-gabbro association may originate from either the evolution of a single magma or two independent magmas which are usually related to intraplate extensional tectonics.

正长岩-辉长岩组合的形成通常与板内伸展构造有关,它们可由同源岩浆演化形成,也可以由两种独立起源的岩浆结晶形成。