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百科
斑晶 [bān jīng]
[岩] phenocryst
- 其矿化围绕含眼球状石英斑晶的角闪石石英闪长玢岩及其环带状蚀变带分布。
The mineralization and the alteration types are clearly distributed around the hornblende quartz diorite porphyry intrusion. - 对石榴石等斑晶的进一步研究将有助于了解该区壳幔过渡带的组成和演化。
Further studies on the compositional zoning of garnet and other phenocrysts are expected to shed light on the nature of the crust-mantle transition zone of this area. - 酸性熔岩中含有铁铝榴石高压斑晶及铁铝榴石中含有14.42-21.40％的镁铝榴石分子，是岩浆物质来自深源的标志。
It is an indicator of magmatic derivation from great depth that the acid lavas contain greenlandite phenocrysts formed at high pressure and the greenlandite contains 14.42-21.40% pyrope.
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