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| Slagstad, Trond; Roberts, Nick M. W.; Coint, Nolwenn; Hoy, Ingjerd; Sauer, Simone; Kirkland, Christopher L.; Marker, Mogens; Rohr, Torkil S.; Henderson, Iain H. C.; Stormoen, Martin A.; Skar, Oyvind; Sorensen, Bjorn Eske; Bybee, Grant. |
| Recently it has been argued that the Sveconorwegian orogeny in southwest Fennoscandia comprised a series of accretionary events between 1140 and 920 Ma, behind a long-lived, active continental margin characterized by voluminous magmatism and high-grade metamorphism. Voluminous magnesian granitic magmatism is recorded between 1070 and 1010 Ma (Sirdal Magmatic Belt, SMB), with an apparent drop in activity ca. 1010-1000 Ma. Granitic magmatism resumed ca. 1000-990 Ma, but with more ferroan (A type) compositions (hornblende-biotite granites). This ferroan granitic magmatism was continuous until 920 Ma, and included emplacement of an AMCG (anorthosite-mangerite-charnockite-granite) complex (Rogaland Igneous Complex). Mafic rocks with ages corresponding to the... |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00444/55552/57143.pdf |
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