Triassic river systems and the paleo-Pacific margin of northwestern Pangea

Miller, Elizabeth L.; Soloviev, A. V.; Prokopiev, A. V.; Toro, Jaime; Harris, D. B.; Kuzmichev, A. B.; Gehrels, George E.

doi:10.1016/j.gr.2012.08.015

Cited by 69 publications

(87 citation statements)

References 26 publications

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“…The Uralide and Timanide mountains provided sediment to this basin, from the east and southeast (Mørk, 1999;Riis et al, 2008;Glørstad-Clark et al, 2010;Miller et al, 2013). Throughout the Triassic, large rivers and deltaic depositional environments (Fig.…”

Section: Carnian-norian Infill Patterns Of the Barents Seamentioning

confidence: 99%

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Lord¹,

Johansen²,

Støen³

et al. 2017

NJG

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Field data collected from the northeasternmost Triassic exposures on the islands of Spitsbergen, Wilhelmøya and Barentsøya during 2015 are used for sedimentological facies analysis to improve our understanding of the stratigraphic development of the Upper Triassic strata. Results presented here build upon previous studies from the eastern areas of the Svalbard archipelago and seek to extend this understanding northward. Paralic deltaic sediments are recognised throughout the field area, and our analysis shows that the Upper Triassic De Geerdalen Formation is composed of three discrete units defined by the differences in gross depositional environments. The lower interval of early Carnian age is dominated by shallow-marine and delta-front/ shoreface deposits, the middle interval of mid Carnian age is dominated by delta-front to delta-top deposits, and the upper interval, corresponding to the Isfjorden Member, of a late Carnian to early Norian age, is dominated by delta-top deposits which include lagoonal and lacustrine deposits. These observations show that the De Geerdalen Formation represents a more distal depositional setting, than the depositional environments previously reported from the islands of Edgeøya and Hopen. We also document the presence of the Tschermakfjellet Formation and Isfjorden Member on Wilhelmøya, thus increasing our understanding of the northwestward development of the Upper Triassic succession in Svalbard.

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Section: Carnian-norian Infill Patterns Of the Barents Seamentioning

confidence: 99%

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Lord¹,

Johansen²,

Støen³

et al. 2017

NJG

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“…This shelf was gradually filled with siliciclastic sediments from the southeast, sourced by the Uralian orogeny (Riis et al, 2008;Glørstad-Clark et al, 2010;Henriksen et al, 2011b;Miller et al, 2013). At the maximum regressive stage of this basin infill, most of the western Barents Sea became a deltaic to paralic depositional environment, with fluvial sediments reaching all way to Svalbard ( Figure 1B).…”

Section: Geological Settingmentioning

confidence: 99%

The upper Triassic paralic deposits of the De Geerdalen Formation on Hopen: Outcrop analog to the subsurface Snadd Formation in the Barents Sea

Klausen¹,

Mørk²

2014

Bulletin

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“…These geological similarities include lithology and faunal assemblages in the sedimentary succession (Cherkesova 1975;Dumoulin et al 2002;Bogdanov 2004;Cocks & Torsvik 2011;Danukalova et al 2014b), the occurrence of Siberian trap flood basalts in the New Siberian Islands (Kuzmichev & Pease 2007), and an inferred Taimyr source for Triassic(?) sandstone on Big Lyakhov island (Miller et al 2013). Zhang et al (2013) documented a distinctive provenance change in late Palaeozoic sediments from Taimyr using heavy mineral and U-Pb detrital zircon analysis; they inferred that uplift and erosion of the Uralian orogen was responsible for the provenance change recorded in the siliciclastic foreland basin deposits of southern Taimyr.…”

mentioning

confidence: 99%

The New Siberian Islands and evidence for the continuation of the Uralides, Arctic Russia

Pease

Kuzmichev

Данукалова

2014

JGS

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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 CarboniferousPermian 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.Supplementary material: Sample co-ordinates, sediment petrography and heavy mineral analysis, U-Pb data tables and description of analytical methods associated with detrital zircon and granite analyses are available at

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Triassic river systems and the paleo-Pacific margin of northwestern Pangea

Cited by 69 publications

References 26 publications

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

The upper Triassic paralic deposits of the De Geerdalen Formation on Hopen: Outcrop analog to the subsurface Snadd Formation in the Barents Sea

The New Siberian Islands and evidence for the continuation of the Uralides, Arctic Russia

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