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Post-magmatic alteration in eudialyte from the North Qoroq centre, South Greenland
(Mineralogical Society of Great Britian, 1997-02)
The North Qoroq centre comprises a series of nested nepheline syenite intrusions and forms part of the midlate Proterozoic Gardar province of South Greenland. Within the centre fractionation has produced varied rock types ...