The Mesoproterozoic (1.47-1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U-Pb dating of a suite of massif-type anorthosites in S Sweden

Linus Brander; Ulf Söderlund

doi:10.1007/s00531-007-0281-0

The Mesoproterozoic (1.47-1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U-Pb dating of a suite of massif-type anorthosites in S Sweden

Linus Brander, Ulf Söderlund

Lithosphere and Biosphere Science

Research output: Contribution to journal › Article › peer-review

Abstract

The Jonkoping Anorthositic Suite (JAS) in S. Sweden has characteristics typical for (Proterozoic) massif-type anorthosites. The interstitial liquid of these plagioclase-porphyritic rocks solidified at 1,455 +/- A 6 Ma, as determined by U-Pb isotope analysis of baddeleyite. The JAS developed during a regional 1.47-1.44 event in Fennoscandia that generated widespread mafic magmatism (basalts, and diabase dykes and sills) in the north and emplacement of felsic plutons in the south. The event of 1.47-1.44 Ga magmatism in Fennoscandia largely coincides in age with dynamic high-grade metamorphism in SW Sweden and was probably related to convergent active-margin processes during the Danopolonian orogeny.

Original language	English
Pages (from-to)	499-516
Journal	International Journal of Earth Sciences
Volume	98
Issue number	3
DOIs	https://doi.org/10.1007/s00531-007-0281-0
Publication status	Published - 2009

Subject classification (UKÄ)

Geology

Free keywords

Fennoscandia
anorthosites
massif-type
baddeleyite
Danopolonian

Access to Document

10.1007/s00531-007-0281-0

Cite this

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title = "The Mesoproterozoic (1.47-1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U-Pb dating of a suite of massif-type anorthosites in S Sweden",

abstract = "The Jonkoping Anorthositic Suite (JAS) in S. Sweden has characteristics typical for (Proterozoic) massif-type anorthosites. The interstitial liquid of these plagioclase-porphyritic rocks solidified at 1,455 +/- A 6 Ma, as determined by U-Pb isotope analysis of baddeleyite. The JAS developed during a regional 1.47-1.44 event in Fennoscandia that generated widespread mafic magmatism (basalts, and diabase dykes and sills) in the north and emplacement of felsic plutons in the south. The event of 1.47-1.44 Ga magmatism in Fennoscandia largely coincides in age with dynamic high-grade metamorphism in SW Sweden and was probably related to convergent active-margin processes during the Danopolonian orogeny.",

keywords = "Fennoscandia, anorthosites, massif-type, baddeleyite, Danopolonian",

author = "Linus Brander and Ulf S{\"o}derlund",

year = "2009",

doi = "10.1007/s00531-007-0281-0",

language = "English",

volume = "98",

pages = "499--516",

journal = "International Journal of Earth Sciences",

issn = "1437-3254",

publisher = "Springer",

number = "3",

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TY - JOUR

T1 - The Mesoproterozoic (1.47-1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U-Pb dating of a suite of massif-type anorthosites in S Sweden

AU - Brander, Linus

AU - Söderlund, Ulf

PY - 2009

Y1 - 2009

N2 - The Jonkoping Anorthositic Suite (JAS) in S. Sweden has characteristics typical for (Proterozoic) massif-type anorthosites. The interstitial liquid of these plagioclase-porphyritic rocks solidified at 1,455 +/- A 6 Ma, as determined by U-Pb isotope analysis of baddeleyite. The JAS developed during a regional 1.47-1.44 event in Fennoscandia that generated widespread mafic magmatism (basalts, and diabase dykes and sills) in the north and emplacement of felsic plutons in the south. The event of 1.47-1.44 Ga magmatism in Fennoscandia largely coincides in age with dynamic high-grade metamorphism in SW Sweden and was probably related to convergent active-margin processes during the Danopolonian orogeny.

AB - The Jonkoping Anorthositic Suite (JAS) in S. Sweden has characteristics typical for (Proterozoic) massif-type anorthosites. The interstitial liquid of these plagioclase-porphyritic rocks solidified at 1,455 +/- A 6 Ma, as determined by U-Pb isotope analysis of baddeleyite. The JAS developed during a regional 1.47-1.44 event in Fennoscandia that generated widespread mafic magmatism (basalts, and diabase dykes and sills) in the north and emplacement of felsic plutons in the south. The event of 1.47-1.44 Ga magmatism in Fennoscandia largely coincides in age with dynamic high-grade metamorphism in SW Sweden and was probably related to convergent active-margin processes during the Danopolonian orogeny.

KW - Fennoscandia

KW - anorthosites

KW - massif-type

KW - baddeleyite

KW - Danopolonian

U2 - 10.1007/s00531-007-0281-0

DO - 10.1007/s00531-007-0281-0

M3 - Article

SN - 1437-3254

VL - 98

SP - 499

EP - 516

JO - International Journal of Earth Sciences

JF - International Journal of Earth Sciences

IS - 3

ER -

The Mesoproterozoic (1.47-1.44 Ga) orogenic magmatism in Fennoscandia; Baddeleyite U-Pb dating of a suite of massif-type anorthosites in S Sweden

Abstract

Subject classification (UKÄ)

Free keywords

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Cite this