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本文探讨了该区超镁铁岩化学成分的分带性;本区方辉橄榄岩与其它地区的化学成分的对比;以及与其密切共生的岩浆岩化学成分的互补关系;及本区上地幔可能的化学分带模式。得出结论:(1)从地质和岩石化学证据表明本区的方辉橄榄岩是地幔物质呈固态侵位的。(2)方辉橄榄岩与共生的岩浆岩有成因联系。(3)本区可能存在上地幔双层化学模式。
In this paper, we discuss the zonation of the chemical composition of the ultramafic rocks in this area, the comparison of the chemical composition of the hhardite with other areas in this area, and their complementary relationship with the chemical compositions of the magmatic rocks that are closely intergrown with them; and the possible upper mantle Chemical zoning model. Conclusions: (1) Geological and petrochemical evidence suggests that the hg-xanthene in this area is a solid emplacement of mantle materials. (2) Hatch the peridotite is associated with the symbiotic magmatic rocks. (3) There may be double-layer chemical model of upper mantle in this area.