苏长岩（norite）是一种基本上由培长石，拉长石或中长石和斜方辉石组成，还常含橄榄石的深成岩，色深，密度较大。苏长岩常与超镁铁质岩及辉长岩共生。
n. norite
misc. hypersthenfels
斜长岩至少比苏长岩多经历了两次构造变形，表明后者是在斜长岩冷却固结之后侵位的。
The anorthosite underwent at least two more times of deformation than the norite, suggesting that the norite was emplaced after the consolidation and cooling of the anorthosite.
因此，可以推测南苏鲁造山带核部的超高压变质岩原岩为形成在大陆板内环境的沉积岩-酸性和基性火山岩-花岗岩和奥长花岗岩建造。
Therefore, the protoliths of the UHPM rocks from the southern Sulu orogenic belt were sedimentary rocks, mafic and acidic volcanic rock, granite and trondhjemite formation with continental affinity.
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