蒙阴县苏家沟科马提岩

KOMATIITE IN SUJIAGOU VILLAGE

摘要:

苏家沟科马提岩呈透镜状残留体赋存于早元古代二长花岗岩中，主要由蛇纹石化橄榄科马提岩、透闪石岩、透闪片岩、阳起透闪片岩、绿泥透闪片岩、黑云阳起片岩等组成，具典型的鬣刺结构及变余鬣刺结构。该科马提岩的岩石学、岩石化学及结构特征与世界典型地区科马提岩极为相似，属橄榄科马提岩。

Abstract:

The komatiite occurred in Paleoproterozoic monzonitic granite as lenticular relict.It is composed of serpentinized divine-komatiite,tremolite,tremolite schist,actinolite tremolite schist,chlorite tremolite schist,and biotite actinolite schist and possesses typical spinifex and blastospinifex texture in petrology,petrochemistry and structure characteristics.It is similar to the typical ones in the world and belongs to olivine komatiite.