变质作用类型
Detailed research suggests the following tectonic evolution model: Thermal metamorphism was related to intra island arc tension, while regional faulting metamorphism was caused by A type subduction in the process of collisional orogeny. Phenomenon
这一研究反映了哈尔里克泥盆纪火山岛弧经过了由拉伸作用到碰撞挤压造山引发的A型俯冲作用演变过程,并产生了上述相应的变质现象
There is a complete metamorphic series of coal from lignite to meager coal in Wumuchang area, Yimin, the main metamorphism type is contact metamorphism of coal.
伊敏五牧场区存在着从褐煤到贫煤完整的变质系列,其主要煤变质类型为接触变质。
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