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The New Siberian Islands and evidence for the continuation of the Uralides, Arctic Russia
Stockholm University, Faculty of Science, Department of Geological Sciences.
2014 (English)In: Journal of the Geological Society, ISSN 0016-7649, E-ISSN 2041-479X, Vol. 172, 1-4 p.Article in journal (Refereed) Epub ahead of print
Abstract

U–Pb detrital zircon results from New Siberian Islands sandstones illuminate the long-lived controversy regarding the continuation of the Uralian orogen into the Arctic region. A dominant age peak of c. 285 Ma from Permian sandstone requires proximal derivation from Taimyr’s Carboniferous–Permian granites, thought to reflect syn- to post-tectonic Uralian magmatism. The provenance of Devonian sandstone has Baltica affinities. The data record a dramatic change in provenance between Devonian and Permian time, from Baltica to a mixed Baltica + Uralian source. Our results confirm that the Uralian foreland basin extended from Taimyr to the New Siberian Islands.

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2014. Vol. 172, 1-4 p.
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Earth and Related Environmental Sciences
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URN: urn:nbn:se:su:diva-126280DOI: 10.1144/jgs2014-064OAI: oai:DiVA.org:su-126280DiVA: diva2:898604
Available from: 2016-01-28 Created: 2016-01-28 Last updated: 2016-01-29

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Pease, Victoria L.
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