作者: Daniel Demaiffe , Janina Wiszniewska , Ewa Krzemińska , Ian S. Williams , Holly Stein
DOI: 10.1086/668674
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摘要: … The Ełk complex consists mainly of various types of foid-bearing syenites. Quartz syenites … Most nepheline syenites have been variously affected by late-stage hydrothermal alteration. …