diallag

The rodingites from the north Hebei Province occurred as separate tectonic lenses within biotite-plagioclase gneisses or leptynites of the Hongqiyingzi Group.

对产于红旗营子群黑云斜长片麻岩或黑云斜长变粒岩之中的冀北异剥钙榴岩进行岩石学研究表明,其主要矿物成分有富钙石榴石、钠长石或钡冰长石以及角闪石等,另有少量异剥辉石(透辉石)残留,其形态多呈大小不等的透镜状或团块状。

The ultra-mafic rocks and diallage gabbro are turned into serpentinite and rodingites through metasomatism and alteration.

经过交代蚀变作用,超镁铁岩形成蛇纹岩,异剥辉长岩形成异剥钙榴岩。