Regional correlation and seismic stratigraphy of Triassic Strata in the Greater Barents Sea: Implications for sediment transport in Arctic basins

Gilmullina, Albina; Klausen, Tore Grane; Paterson, Niall W.; Суслова, А.А.; Eide, Christian Haug

doi:10.1111/bre.12526

Cited by 28 publications

(44 citation statements)

References 110 publications

(247 reference statements)

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“…The different taxonomic approach and general lack of illustrations used for Russian miospores makes compari-son with other data difficult and will require future collaboration between Russian and non-Russian workers. The only comparisons so far were by Mørk et al (1993), who attempted to compare palynological assemblages of the Russian and Norwegian sectors of the Barents Sea, and by Gilmullina et al (2020). The latter authors indicated that several of the Norwegian zones described by Vigran et al (2014) and are recognizable in the Russian sector.…”

Section: Uvaesporites Imperialis (Common)mentioning

confidence: 99%

Triassic palynoevents in the circum-Arctic region

Mangerud

Paterson²,

Bujak³

2021

atgeol

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Triassic successions of the present-day Arctic contain abundant and diverse assemblages of nonmarine palynomorphs that have provided important biostratigraphic information. Dinoflagellate cyst are biostratigraphically useful in marine intervals in the Upper Triassic. Based on published records, we present a compilation of 78 last occurrences (LOs), first occurrences (FOs), and some abundance events that are anticipated to have correlation potential in the Arctic region. Palynological work has been carried out in many Arctic areas, with extensive palynological research published on the Triassic successions of the Norwegian Barents Sea and Svalbard. An updated, recent palynological zonation scheme exists for that region, integrating previous schemes and illustrating the chronostratigraphic value of palynology in the Triassic. For the Lower and Middle Triassic, good ammonoid control ties the palynological zones to the chronostratigraphic scale. Independent control is sparse, and resolution is lower in the Upper Triassic, so that palynology is commonly the only biostratigraphic discipline available for chronostratigraphic dating and correlation.

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Section: Uvaesporites Imperialis (Common)mentioning

confidence: 99%

Triassic palynoevents in the circum-Arctic region

Mangerud

Paterson²,

Bujak³

2021

atgeol

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“…3). Stratigraphic units are defined by discrete maximum flooding surfaces that can be traced across the entire basin based on seismic data and tied to core and well data dated by biostratigraphy (Gilmullina et al, 2021). These deposits prograded from the SE toward the NW (Fig.…”

Section: Geological Settingmentioning

confidence: 99%

“…These deposits prograded from the SE toward the NW (Fig. 4) (Glørstad-Clark et al, 2010;Klausen et al, 2015Klausen et al, , 2018Gilmullina et al, 2021) across the entire basin and share relatively similar provenance characteristics. They are commonly interpreted to have been sourced from the Urals with minor contributions from different nearby areas (Mørk, 1999;Bue and Andresen, 2014;Fleming et al, 2016;Flowerdew et al, 2019;Khudoley et al, 2019).…”

Section: Geological Settingmentioning

confidence: 99%

“…3), which records the evolution of these sediment sources. Here, stratigraphic age and sediment transport directions are well-known due to (1) an abundance of publicly available core, well, and seismic reflection data; (2) well-imaged clinoforms and fluvial channels (Glørstad-Clark et al, 2010;Klausen et al, 2015;Eide et al, 2018a;Rossi et al, 2019); (3) good palynostratigraphic time control (Vigran et al, 2014;Paterson and Mangerud, 2019); (4) a long history of research; and (5) regionally recognizable seismic marker surfaces (flooding surfaces) with time-stratigraphic significance (Gilmullina et al, 2021). This makes it possible to determine the amount of sediment supplied to the basin through time and the overall directions of sediment transport.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies provided insights into the source of siliciclastic material based on petrography of sandstones (Mørk, 1999;Fleming et al, 2016;Flowerdew et al, 2019), detrital zircons (Omma et al, 2011;Bue and Andresen, 2014;Fleming et al, 2016;Klausen et al, 2017;Khudoley et al, 2019;Haile et al, 2021;Flowerdew et al, 2019), chrome spinel (Harstad et al, 2020), and seismic data (Glørstad-Clark et al, 2010;Gilmullina et al, 2021). However, these studies have not attempted to study the evolution of the source areas through the entire Triassic.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Linking sediment supply variations and tectonic evolution in deep time, source-to-sink systems—The Triassic Greater Barents Sea Basin

Gilmullina

Klausen²,

Doré

et al. 2021

GSA Bulletin

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Triassic strata in the Greater Barents Sea Basin are important records of geodynamic activity in the surrounding catchments and sediment transport in the Arctic basins. This study is the first attempt to investigate the evolution of these source areas through time. Our analysis of sediment budgets from subsurface data in the Greater Barents Sea Basin and application of the BQART approach to estimate catchment properties shows that (1) during the Lower Triassic, sediment supply was at its peak in the basin and comparable to that of the biggest modern-day river systems, which are supplied by tectonically active orogens; (2) the Middle Triassic sediment load was significantly lower but still comparable to that of the top 10 largest modern rivers; (3) during the Upper Triassic, sediment load increased again in the Carnian; and (4) there is a large mismatch (70%) between the modeled and estimated sediment load of the Carnian. These results are consistent with the Triassic Greater Barents Sea Basin succession being deposited under the influence of the largest volcanic event ever at the Permian-Triassic boundary (Siberian Traps) and concurrent with the climatic changes of the Carnian Pluvial Event and the final stages of the Northern Ural orogeny. They also provide a better understanding of geodynamic impacts on sedimentary systems and improve our knowledge of continental-scale sediment transport. Finally, the study demonstrates bypass of sediment from the Ural Mountains and West Siberia into the adjacent Arctic Sverdrup, Chukotka, and Alaska Basins in Late Carnian and Late Norian time.

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Multi‐elemental chemostratigraphy of Triassic mudstones in eastern Svalbard: Implications for source rock formation in front of the World’s largest delta plain

Wesenlund

Grundvåg

Engelschiøn

et al. 2022

The Depositional Record

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The Triassic Boreal Ocean was a shallow epicontinental basin and the sink of the World's largest delta plain known to date. Nutrient and freshwater supply from this delta have been regarded as important causes for high productivity and water mass stratification, forming Middle Triassic oil‐prone source rocks. Recent studies attribute upwelling and a productivity‐induced oxygen minimum zone as important factors. A multi‐elemental chemostratigraphic study of a Spathian–Carnian mudstone succession exposed in eastern Svalbard was performed to investigate their formation. This includes 89 samples from three localities, from which 34 elements were acquired using combustion and X‐ray fluorescence analyses. The goal is to provide a correlation framework and infer the role of productivity, redox and water mass restriction on organic matter accumulation and source rock formation. These processes had major impact on the source potential. The Spathian Vendomdalen Member suggests deposition during intermittent benthic euxinia and low productivity, corresponding with a reported deep thermocline that obstructed upwelling. The lower Anisian lower–middle Muen Member shows negligible enrichment in redox‐sensitive elements but in situ phosphate nodules, consistent with developing upwelling and moderate productivity. The middle Anisian upper Muen Member formed during high productivity and phosphogenesis and is linked with basin‐wide upwelling. Productivity, phosphate and redox proxies are all strongly enriched in the upper Anisian–Ladinian Blanknuten Member. In the south‐western Barents Sea, the pro‐deltaic environment of the emerging Triassic Boreal Ocean delta system had terminated these conditions. The upper Ladinian upper Blanknuten Member formed within intermittent euxinic bottom waters due to the shallowing sea level. The Carnian Tschermakfjellet Formation marks the dominance of the prograding delta system and the end of Triassic oil‐prone source rock formation in Svalbard.

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Regional correlation and seismic stratigraphy of Triassic Strata in the Greater Barents Sea: Implications for sediment transport in Arctic basins

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 28 publications

References 110 publications

Triassic palynoevents in the circum-Arctic region

Triassic palynoevents in the circum-Arctic region

Linking sediment supply variations and tectonic evolution in deep time, source-to-sink systems—The Triassic Greater Barents Sea Basin

Multi‐elemental chemostratigraphy of Triassic mudstones in eastern Svalbard: Implications for source rock formation in front of the World’s largest delta plain

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