矿物组成、结构和野外产状表明：这些紫苏花岗岩是火成成因的。
Mineral assemblage, texture and field occurrence indicate an igneous origin for the charnockites.
琼中地区存在由片麻岩、混合岩、麻粒岩和紫苏花岗岩组成的高级变质杂岩。
The high grade metamorphic complexes in middle Hainan Island are composed of gneisses, migmatites, granulites and charnockites.
琼中地区存在由片麻岩、混合岩、麻粒岩和紫苏花岗岩组成的高级变质杂岩。
The high grade metamorphic complexes in middle Hainan Island are composed of gneisses, migmatites, granulites and charnockites.
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