Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea
Four stratigraphic cores (7533/2-U-1, 2-U-2, 3-U-7 and 7534/4-U-1) drilled in the Sentralbanken High provide important reference sections for the Upper Triassic succession in the northern Barents Sea. The cores span the De Geerdalen, Flatsalen and Svenskøya formations (Kapp Toscana Group), which are...
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Taylor & Francis
2018
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ftdatacite:10.6084/m9.figshare.5965243 2023-05-15T15:38:32+02:00 Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea Paterson, Niall William Mangerud, Gunn Holen, Lars Haug Johne Landa Lundschien, Bjørn Anders Eide, Frøydis 2018 https://dx.doi.org/10.6084/m9.figshare.5965243 https://tandf.figshare.com/articles/Late_Triassic_early_Carnian_Norian_palynology_of_the_Sentralbanken_High_Norwegian_Barents_Sea/5965243 unknown Taylor & Francis https://dx.doi.org/10.1080/01916122.2017.1413018 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Cell Biology Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology Marine Biology Inorganic Chemistry FOS Chemical sciences dataset Dataset 2018 ftdatacite https://doi.org/10.6084/m9.figshare.5965243 https://doi.org/10.1080/01916122.2017.1413018 2021-11-05T12:55:41Z Four stratigraphic cores (7533/2-U-1, 2-U-2, 3-U-7 and 7534/4-U-1) drilled in the Sentralbanken High provide important reference sections for the Upper Triassic succession in the northern Barents Sea. The cores span the De Geerdalen, Flatsalen and Svenskøya formations (Kapp Toscana Group), which are equivalent to the Snadd to middle Fruholmen formations of the southern Barents Sea. Only cursory palynological study of the cores has been conducted previously, and no published palynofacies data is available. We present a detailed palynostratigraphy from the cores, and describe six informal palynological assemblages. Comparison with independently dated sections from elsewhere in the region enables a revised age interpretation of early Carnian to Norian for the cored interval, thereby improving correlation between Sentralbanken, Svalbard and the southern Barents Sea. A dominance of amorphous organic matter (AOM) and marine palynomorphs indicates a distal suboxic–anoxic marine depositional environment for the lower De Geerdalen Formation, with an abrupt change to a nearshore marine environment above an erosion surface in core 7534/4-U-1. Palynofacies from the remainder of the formation are characterised by a dominance of phytoclasts and are interpreted as indicative of a delta front to coastal plain environment. The reappearance of AOM, microforaminiferal test linings and marine microphytoplankton in the Flatsalen Formation in cores 7533/2-U-1 and 2-U-2 reflects a regional transgression of early Norian age. Reworked palynomorphs, shale rip-up clasts and a transition to phytoclast-dominated palynofacies above an erosion surface at the base of the overlying Svenskøya Formation is consistent with a disconformity, which was previously identified as a possible sequence boundary on the neighbouring island of Hopen. Dataset Barents Sea Hopen Sentralbanken Svalbard Svenskøya Hopen DataCite Metadata Store (German National Library of Science and Technology) Barents Sea De Geerdalen ENVELOPE(16.368,16.368,78.296,78.296) Flatsalen ENVELOPE(25.500,25.500,76.700,76.700) Hopen ENVELOPE(9.279,9.279,63.379,63.379) Kapp Toscana ENVELOPE(15.075,15.075,77.553,77.553) Rip ENVELOPE(-19.509,-19.509,65.690,65.690) Sentralbanken ENVELOPE(34.000,34.000,74.000,74.000) Svalbard |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Cell Biology Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology Marine Biology Inorganic Chemistry FOS Chemical sciences |
spellingShingle |
Cell Biology Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology Marine Biology Inorganic Chemistry FOS Chemical sciences Paterson, Niall William Mangerud, Gunn Holen, Lars Haug Johne Landa Lundschien, Bjørn Anders Eide, Frøydis Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
topic_facet |
Cell Biology Evolutionary Biology FOS Biological sciences 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences Ecology Sociology FOS Sociology Marine Biology Inorganic Chemistry FOS Chemical sciences |
description |
Four stratigraphic cores (7533/2-U-1, 2-U-2, 3-U-7 and 7534/4-U-1) drilled in the Sentralbanken High provide important reference sections for the Upper Triassic succession in the northern Barents Sea. The cores span the De Geerdalen, Flatsalen and Svenskøya formations (Kapp Toscana Group), which are equivalent to the Snadd to middle Fruholmen formations of the southern Barents Sea. Only cursory palynological study of the cores has been conducted previously, and no published palynofacies data is available. We present a detailed palynostratigraphy from the cores, and describe six informal palynological assemblages. Comparison with independently dated sections from elsewhere in the region enables a revised age interpretation of early Carnian to Norian for the cored interval, thereby improving correlation between Sentralbanken, Svalbard and the southern Barents Sea. A dominance of amorphous organic matter (AOM) and marine palynomorphs indicates a distal suboxic–anoxic marine depositional environment for the lower De Geerdalen Formation, with an abrupt change to a nearshore marine environment above an erosion surface in core 7534/4-U-1. Palynofacies from the remainder of the formation are characterised by a dominance of phytoclasts and are interpreted as indicative of a delta front to coastal plain environment. The reappearance of AOM, microforaminiferal test linings and marine microphytoplankton in the Flatsalen Formation in cores 7533/2-U-1 and 2-U-2 reflects a regional transgression of early Norian age. Reworked palynomorphs, shale rip-up clasts and a transition to phytoclast-dominated palynofacies above an erosion surface at the base of the overlying Svenskøya Formation is consistent with a disconformity, which was previously identified as a possible sequence boundary on the neighbouring island of Hopen. |
format |
Dataset |
author |
Paterson, Niall William Mangerud, Gunn Holen, Lars Haug Johne Landa Lundschien, Bjørn Anders Eide, Frøydis |
author_facet |
Paterson, Niall William Mangerud, Gunn Holen, Lars Haug Johne Landa Lundschien, Bjørn Anders Eide, Frøydis |
author_sort |
Paterson, Niall William |
title |
Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
title_short |
Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
title_full |
Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
title_fullStr |
Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
title_full_unstemmed |
Late Triassic (early Carnian–Norian) palynology of the Sentralbanken High, Norwegian Barents Sea |
title_sort |
late triassic (early carnian–norian) palynology of the sentralbanken high, norwegian barents sea |
publisher |
Taylor & Francis |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.5965243 https://tandf.figshare.com/articles/Late_Triassic_early_Carnian_Norian_palynology_of_the_Sentralbanken_High_Norwegian_Barents_Sea/5965243 |
long_lat |
ENVELOPE(16.368,16.368,78.296,78.296) ENVELOPE(25.500,25.500,76.700,76.700) ENVELOPE(9.279,9.279,63.379,63.379) ENVELOPE(15.075,15.075,77.553,77.553) ENVELOPE(-19.509,-19.509,65.690,65.690) ENVELOPE(34.000,34.000,74.000,74.000) |
geographic |
Barents Sea De Geerdalen Flatsalen Hopen Kapp Toscana Rip Sentralbanken Svalbard |
geographic_facet |
Barents Sea De Geerdalen Flatsalen Hopen Kapp Toscana Rip Sentralbanken Svalbard |
genre |
Barents Sea Hopen Sentralbanken Svalbard Svenskøya Hopen |
genre_facet |
Barents Sea Hopen Sentralbanken Svalbard Svenskøya Hopen |
op_relation |
https://dx.doi.org/10.1080/01916122.2017.1413018 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.5965243 https://doi.org/10.1080/01916122.2017.1413018 |
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1766369554691260416 |