Abstrakt
Whole-rock analyses, including REE, are given for 19 samples from four of the six overlapping nepheline-syenite intrusions which constitute the Proterozoic (approx 1310 m.y.) Motzfeldt centre. Incorporation of earlier feldspar-rich cumulates, in addition to extensive crystal fractionation, could have played an important role in the overall petrogenesis of the syenites.-J.A.Z.
Originalsprog | Engelsk |
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Sider (fra-til) | 1087-1100 |
Antal sider | 14 |
Tidsskrift | American Mineralogist |
Vol/bind | 70 |
Udgave nummer | 11-12 |
Status | Udgivet - 1985 |
Programområde
- Programområde 4: Mineralske råstoffer