Massif-type anorthosite is the most common type of anorthosite and with distinct characteristics. Most massif-type anorthosite bodies are Proterozoic ranging from 2.1 Gato 0.9 Ga in formation ages, representing an important tectono-thermal event in the earth evolution.

  • 其中,岩体型斜长岩仅赋存于前寒武纪变质地体中,形成时代主要为元古宙(2.1~0.9Ga),代表地球演化史上很重要的构造-热事件。

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