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Introduction to the lithotectonic framework of Sweden and organization of this Memoir
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Geosciences and Environmental Engineering.
2020 (English)In: Sweden: Lithotectonic Framework, Tectonic Evolution and Mineral Resources / [ed] M. B. Stephens and J. Bergman Weihed, Geological Society of London, 2020, p. 1-15Chapter in book (Other academic)
Abstract [en]

The solid rock geology of Sweden comprises three principal components: (1) Proterozoic and (locally) Archean rocks belonging to the western part of the Fennoscandian Shield; (2) Phanerozoic and (locally) Neoproterozoic sedimentary cover rocks deposited on top of this ancient crust; and (3) the early to mid-Paleozoic (0.5–0.4 Ga) Caledonide orogen. Earlier compilations have applied different principles for the subdivision of the geology in the Fennoscandian Shield and the Caledonide orogen. A uniform lithotectonic framework has been developed here. Crustal segments affected by orogenesis have been identified and their ages determined by the youngest tectonothermal event. Four ancient mountain belts and six orogenies are preserved. Solid rocks outside the orogens have been assigned to different magmatic complexes or sedimentary successions based on their time of formation and tectonic affiliation. This approach allows relicts of older mountain-building activity to be preserved inside a younger orogen – for example, the effects of the Archean (2.8–2.6 Ga) orogeny inside the 2.0–1.8 Ga Svecokarelian orogen and Paleo–Mesoproterozoic (1.7–1.5 and 1.5–1.4 Ga) mountain-building processes inside the 1.1–0.9 Ga Sveconorwegian orogen. Sweden's five largest mineral districts are addressed in the context of this new lithotectonic framework, which forms the architecture to the contents of the chapters in this Memoir.

Place, publisher, year, edition, pages
Geological Society of London, 2020. p. 1-15
Series
Memoirs of the Geological Society of London, ISSN 0435-4052, E-ISSN 2041-4722 ; 50
National Category
Geology
Research subject
Ore Geology
Identifiers
URN: urn:nbn:se:ltu:diva-78268DOI: 10.1144/M50-2019-21Scopus ID: 2-s2.0-85087460750OAI: oai:DiVA.org:ltu-78268DiVA, id: diva2:1420906
Note

ISBN för värdpublikation: 978-1-78620-460-8

Available from: 2020-04-01 Created: 2020-04-01 Last updated: 2020-07-24Bibliographically approved

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Stephens, Michael B.

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  • apa
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