Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic

Lawver, Lawrence A.; Gahagan, Lisa M.; Norton, Ian O.

doi:10.1144/m35.5

Cited by 39 publications

(24 citation statements)

References 69 publications

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“…In the context of the entire Pangaean supercontinent, this chart represents a transect from the northern (Boreal) marine margin to the centre of the Pangaean plate, as depicted on recent plate-wide reconstructions (e.g. Doré et al 1999;Pharaoh et al 2010;Golonka 2011;Lawver et al 2011). Reference to the southern (Tethyan) marine margin is also included in the text where necessary.…”

Section: Regional Stratigraphic Frameworkmentioning

confidence: 99%

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Stoker

Stewart

Shannon

et al. 2016

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This study describes the distribution and stratigraphic range of the Upper PalaeozoicMesozoic succession in the NE Atlantic region, and is correlated between conjugate margins and along the axis of the NE Atlantic rift system. The stratigraphic framework has yielded important new constraints on the timing and nature of sedimentary basin development in the NE Atlantic, with implications for rifting and the break-up of the Pangaean supercontinent. From a regional perspective, the Permian-Triassic succession records a northwards transition from an arid interior to a passively subsiding, mixed carbonate -siliciclastic shelf margin. A Late Permian-earliest Triassic rift pulse has regional expression in the stratigraphic record. A fragmentary paralic to shallowmarine Lower Jurassic succession reflects Early Jurassic thermal subsidence and mild extensional tectonism; this was interrupted by widespread Mid-Jurassic uplift and erosion, and followed by an intense phase of Late Jurassic rifting in some (but not all) parts of the NE Atlantic region. The Cretaceous succession is dominated by thick basinal-marine deposits, which accumulated within and along a broad zone of extension and subsidence between Rockall and NE Greenland. There is no evidence for a substantive and continuous rift system along the proto-NE Atlantic until the Late Cretaceous.Gold Open Access: This article is published under the terms of the CC-BY 3.0 license.

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Section: Regional Stratigraphic Frameworkmentioning

confidence: 99%

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Stoker

Stewart

Shannon

et al. 2016

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“…The present-day Arctic has formed due to the northerly directed drift of continents, which resulted in creation of the Pangea Supercontinent in Permian time, and following disintegration of this supercontinent during Mesozoic and Cenozoic time [85,145]. This geological history is recorded in the rocks of the Arctic fold belts and sedimentary basins.…”

Section: Introductionmentioning

confidence: 99%

Fold belts and sedimentary basins of the Eurasian Arctic

Drachev¹

2016

Arktos

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The vast Eurasian Arctic epicontinental shelf and adjoining mainland has a very complex structure and tectonic history as a result of a series of continent-continent collisions, accretion of terranes and crustal extension phases during Neoproterozoic and Phanerozoic times. Significant parts of major Eurasian fold belts extend far north into the Arctic below thick infill of post-orogenic sedimentary basins, where their architecture remains highly disputed. Large Eurasian Arctic sedimentary basins formed as a result of orogenic collapse, back-arc extension, or intracontinental extension associated with the breakup of the Laurussia, Laurasia, Pangea and Eurasia supercontinents. There are over 40 sedimentary basins of variable age and genesis which are thought to bear significant undiscovered hydrocarbon resources in the region. This article reviews the current state-of-knowledge of Eurasian Arctic tectonics and highlights questions that remain to be addressed. The overall focus is on the Russian sector of the Arctic being less known to a broad geoscience community.

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“…A number of recent Late Paleozoic paleogeographic maps show the Siberian Craton and various arctic islands positioned outside the tropic belt at 40° to 70°N paleolatitudes [ Scotese , ; Cocks and Torsvik , ; Blakey , ; Golonka , ; Lawver et al ., ]. These reconstructions, which were developed from paleomagnetic data, zircon provenance, and lithofacies distribution, generally lack biogeographic data.…”

Section: Introductionmentioning

confidence: 99%

Biotic paleothermometry constrains on Arctic plates reconstructions: Carboniferous and Permian (Zhokhov Island, De-Longa Group Islands, New Siberian Archipelago)

Davydov

2016

Tectonics

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A warm‐water fauna and flora from a Carboniferous limestone xenolith that was captured during penetration of deep intraplate Cenozoic basalts through a Paleozoic carbonate platform have been found on Zhokhov Island, New Siberian Archipelago (NSA). This limestone xenolith contains a very high taxonomic diversity of Moscovian (Middle Pennsylvanian) tropical foraminifera and calcareous algae. As this warm‐water biota never occurs north of the forbiddance line, i.e., 30–35°N/S, this fauna and algal flora constrain the paleogeography and interpretation of the paleotectonics in the region. Thus, the location of the most of the New Siberian Archipelago islands at that time must have been within tropics or subtropics. Analyses of the existing data on fusulinid distribution within the Arctic region indicate that Zhokhov and Wrangel Islands were still a part of Alaska‐Chukotka composite terrane as late as in the Artinskian. Both fusulinid and detrital zircon provenance data suggest that the Chukotka microplate, NSA, and Wrangel Island probably were close to Arctic Alaska until Triassic time. The fusulinids from the Mankomen Formation and other formations in Wrangelia show a strong affinity with the Uralo‐Franklinian province regions including the Sverdrup Basin, Spitsbergen, Barents Sea, and Timan‐Pechora and the northern‐central Urals rather than with northern Panthalassa.

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Chapter 5 Palaeogeographic and tectonic evolution of the Arctic region during the Palaeozoic

Cited by 39 publications

References 69 publications

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

An overview of the Upper Palaeozoic–Mesozoic stratigraphy of the NE Atlantic region

Fold belts and sedimentary basins of the Eurasian Arctic

Biotic paleothermometry constrains on Arctic plates reconstructions: Carboniferous and Permian (Zhokhov Island, De-Longa Group Islands, New Siberian Archipelago)

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