河北省遵化—迁西地区超基性岩生成时代的探讨

冀东地区已蛇纹石化及未蚀变的超基性岩绝大多数在新太古代变质深成岩中呈包体存在,不少专家把这些超基性岩归属太古宙。笔者认为该区未变质及已蛇纹石化超基性岩应是显生宙的产物,而不是太古宙变质深成岩的"捕掳体"。同时对遵化—迁西地区蛇纹岩生成时代进行探讨。

Discussion on geochron of serpentinite in Zunhua-Qianxi area,Hebei Province

The vast majority of serpentinized and not altered ultrabasic rocks in Eastern Hebei Province were inclusion in the Neoarchean era metamorphic plutonic rocks. Many experts regarded these ultrabasic rocks as Archaean eon. The authors think that not metamorphic and serpentinized ultrabasic rocks should be the product of the Phanerozoic eon, or not the“xenolith”of the Archean eon metamorphic plutonic rocks. At the same time, we discusses the generate era of serpentinite of Zunhua-Qianxi region.