| Reference Type | Journal (article/letter/editorial) |
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| Access Rights | Open Access |
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| Title | A new occurrence of aegirine in Norway |
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| Journal | Norwegian Journal of Geology (Norsk Geologisk Tidsskrift) | ISBN | 978-82-92-39441-0 |
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| Authors | Prestvik, Tore | Author |
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| Barnes, Calvin G. | Author |
| Year | 2007 | Volume | 87 |
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| Page(s) | 451-456 | Issue | 4 |
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| Publisher | Geological Society of Norway (Norsk Geologisk Forening) |
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| URL | |
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| Download URL | https://njg.geologi.no/images/NJG_articles/Prestvik_Barnes_screen.pdf+ |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 16857727 | Long-form Identifier | mindat:1:5:16857727:1 |
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| GUID | e3879bd2-c784-41a9-90a1-3a224b27a26b |
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| Full Reference | Prestvik, Tore, Barnes, Calvin G. (2007) A new occurrence of aegirine in Norway. Norwegian Journal of Geology (Norsk Geologisk Tidsskrift), 87 (4) 451-456 |
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| Plain Text | Prestvik, Tore, Barnes, Calvin G. (2007) A new occurrence of aegirine in Norway. Norwegian Journal of Geology (Norsk Geologisk Tidsskrift), 87 (4) 451-456 |
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| In | (2007) Norwegian Journal of Geology (Norsk Geologisk Tidsskrift) Vol. 87 (4) Geological Society of Norway (Norsk Geologisk Forening) |
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| Abstract/Notes | The Hortavær Complex in north-central Norway is a well documented example of the formation of an alkaline magmatic suite due to the assimilation of carbonate and calc-silicate rocks (Vogt 1916; Gustavson & Prestvik, 1979; Barnes et al. 2003, 2005). In addition to calcic pyroxene, aegirine occurs in veins near skarn-like assemblages in a zone where dioritic sheets were emplaced into syenite. Other vein minerals are biotite, albite, K-feldspar, calcite, and ilmenite. The aegirine is almost pure NaFeSi2 O6 . Laser-ablation ICP-MS analysis shows that the aegirine crystals are typically lower in trace element concentrations than the calcic clinopyroxene of the complex. Chondrite-normalized rare earth element (REE) patterns show a prominent cup shape, and light REE abundances range from ~ 0.1x to > 10x chondrites. |
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