Geochronological, geochemical and isotopic study of detrital zircon suites from late Neoproterozoic clastic strata along the NE margin of the East European Craton : implications for plate tectonic models | Macquarie University ResearchOnline

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Geochronological, geochemical and isotopic study of detrital zircon suites from late Neoproterozoic clastic strata along the NE margin of the East European Craton : implications for plate tectonic models

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Title: Geochronological, geochemical and isotopic study of detrital zircon suites from late Neoproterozoic clastic strata along the NE margin of the East European Craton : implications for plate tectonic models
Related: Gondwana research, Vol. 17, Issue 2-3, (2010), p.583-601
DOI: 10.1016/j.gr.2009.08.005
Publisher: Elsevier BV
Date: 2010
Author/Creator: Kuznetsov, N. B
Author/Creator: Natapov, L. M
Author/Creator: Belousova, E. A
Author/Creator: O'Reilly, Suzanne Y
Author/Creator: Griffin, William L
Description: U/Pb dating, REE geochemistry and Lu/Hf isotopic studies utilizing LA-ICPMS on detrital zircon suites from Neoproterozoic siliciclastic rocks from the northeast periphery of the East European Craton (sandstones of Djejim Formation, Djejim-Parma Hills, Southern Timan Ridge and sandstones of the Engane-Pe Formation, Northern Engane-Pe uplift, Polar Urals) are used to assess the provenance of sediments and test tectonic models for the late Precambrian assembly of continents. The data support the conclusion that Neoproterozoic complexes of the Timan–Pechora region (TPR) are composed mainly of sedimentary rocks (SW Pre-Uralides–Timanides) eroded from Baltica and deposited along the passive margin of Baltica. However, late Precambrian–Early Cambrian volcanic-sedimentary and volcanic rocks, granitoids, and rare ophiolites of the TPR (NE Pre-Uralides–Timanides) comprise more juvenile material developed some distance from Baltica. Important differences exist between the U/Pb ages and Lu/Hf isotopic systematics of zircons from rocks of the NE Pre-Uralides–Timanides and the Neoproterozoic complexes of the Peri-Gondwanan terranes and do not support a Peri-Gondwanan origin for the NE Pre-Uralides–Timanides. In our interpretation, the SW Pre-Uralides–Timanides were deposited in the Neoproterozoic along the passive Timanian–Uralian margin of Baltica, but the NE Pre-Uralides–Timanides were formed along the active (Bolshezemel) margin of a paleocontinent called Arctida and were caught in the collision zone between the two paleocontinents, Arctida and Baltica.
Description: 19 page(s)
Subject Keyword: 040400 Geophysics
Subject Keyword: 040300 Geology
Subject Keyword: East European Craton
Subject Keyword: the Polar Urals
Subject Keyword: Avalonides
Subject Keyword: Arctida
Subject Keyword: Timan Ridge
Subject Keyword: Neoproterozoic–Cambrian
Subject Keyword: Pre-Uralides–Timanides
Subject Keyword: detrital zircons
Subject Keyword: U/Pb dating
Subject Keyword: Lu/Hf isotopic system
Subject Keyword: Baltica
Subject Keyword: Cadomides
Resource Type: journal article
Organisation: Macquarie University. National Key Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC)

Identifier: http://hdl.handle.net/1959.14/128868
Identifier: ISSN:1342-937X
Identifier: mq-rm-2010004219
Language: eng
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