The studying degree of the predecessor is low to the Permian mafic-ultramafic rock.
前人对该地区二叠纪镁铁质—超镁铁质岩石的研究程度较低。
2
The quartz-mica schist, quartzite and marble were metamorphosed sedimentary rocks, and, together with paragneiss and maficrock, constituted the old supracrustal series.