1000ma
1000ma-
The M 1 ( 1000Ma ) anticlockwise ( IBC ) P T path derived here for this area may be related to magmatic underplating beneath existing continental crust and intrusion and crystallization of substantial volumes of igneous material within crust .
本文得出该区M1（1000Ma）变质作用的逆时针（IBC）P－T轨迹可能与已存在的大陆壳下面的岩浆底侵作用及地壳内大量岩浆物质的侵入和结晶作用有关。