Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea
Outcrop and subsurface data from the central northern margin of the Pangean shelf in North Greenland, Svalbard, and the Norwegian Barents Sea record the depositional response of a Northern Hemisphere subtropical shelf to Late Carboniferous-Early Permian (Bashkirian-Sakmarian) Gondwana glaciations. T...
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Online Access: | https://curis.ku.dk/portal/da/publications/influence-of-late-paleozoic-gondwana-glaciations-on-the-depositional-evolution-of-the-northern-pangean-shelf-north-greenland-svalbard-and-the-barents-sea(d8d6ead0-a5b5-11dd-b5e9-000ea68e967b).html https://doi.org/10.1130/2008.2441(14 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/d8d6ead0-a5b5-11dd-b5e9-000ea68e967b 2024-01-14T10:05:44+01:00 Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea Stemmerik, Lars 2008 https://curis.ku.dk/portal/da/publications/influence-of-late-paleozoic-gondwana-glaciations-on-the-depositional-evolution-of-the-northern-pangean-shelf-north-greenland-svalbard-and-the-barents-sea(d8d6ead0-a5b5-11dd-b5e9-000ea68e967b).html https://doi.org/10.1130/2008.2441(14 eng eng info:eu-repo/semantics/restrictedAccess Stemmerik , L 2008 , ' Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea ' , Geological Society of America. Special Papers , vol. 441 , pp. 205-217 . https://doi.org/10.1130/2008.2441(14) /dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science Gondwana nord grønland Swalbard late palezoic Gondwana glaciations Pangean shelf North Grenland article 2008 ftcopenhagenunip https://doi.org/10.1130/2008.2441(14 2023-12-20T23:58:41Z Outcrop and subsurface data from the central northern margin of the Pangean shelf in North Greenland, Svalbard, and the Norwegian Barents Sea record the depositional response of a Northern Hemisphere subtropical shelf to Late Carboniferous-Early Permian (Bashkirian-Sakmarian) Gondwana glaciations. The dominant motif is that of meters to tens of meters of exposure-capped cycles of carbonates, mixed carbonates, and siliciclastics and, in older stratigraphic levels, siliciclastics and gypsum. Halitegypsum-carbonate cycles developed in deeper, isolated basins. Individual cycles of carbonate and mixed carbonate-siliciclastics reflect deposition during the later stages of transgression, sea-level highstands, and high-frequency and high-amplitude glacioeustatic sea-level fluctuations. The Moscovian sections in North Greenland are composed of 43 such cycles, each of which apparently reflects sealevel fluctuations linked to the 100 k.y. Milankovitch cycle. The stratigraphic distribution of subaerial exposure surfaces indicates that during Late Carboniferous-Early Permian time, the northern Pangea shelf repeatedly changed from being a shallow subtropical carbonate platform to a vast subaerially exposed carbonate plain, and it implies sea-level amplitudes in excess of 50 m. A major Gondwana deglaciation event is recorded in early Sakmarian shelf successions offshore northern Norway, where rapid flooding led to sediment starvation over an extended period of time, and when sedimentation finally resumed, the cyclic motif is absent. Article in Journal/Newspaper Barents Sea Greenland Grønland North Greenland Northern Norway Svalbard University of Copenhagen: Research Barents Sea Greenland Norway Svalbard |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science Gondwana nord grønland Swalbard late palezoic Gondwana glaciations Pangean shelf North Grenland |
spellingShingle |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science Gondwana nord grønland Swalbard late palezoic Gondwana glaciations Pangean shelf North Grenland Stemmerik, Lars Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
topic_facet |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science Gondwana nord grønland Swalbard late palezoic Gondwana glaciations Pangean shelf North Grenland |
description |
Outcrop and subsurface data from the central northern margin of the Pangean shelf in North Greenland, Svalbard, and the Norwegian Barents Sea record the depositional response of a Northern Hemisphere subtropical shelf to Late Carboniferous-Early Permian (Bashkirian-Sakmarian) Gondwana glaciations. The dominant motif is that of meters to tens of meters of exposure-capped cycles of carbonates, mixed carbonates, and siliciclastics and, in older stratigraphic levels, siliciclastics and gypsum. Halitegypsum-carbonate cycles developed in deeper, isolated basins. Individual cycles of carbonate and mixed carbonate-siliciclastics reflect deposition during the later stages of transgression, sea-level highstands, and high-frequency and high-amplitude glacioeustatic sea-level fluctuations. The Moscovian sections in North Greenland are composed of 43 such cycles, each of which apparently reflects sealevel fluctuations linked to the 100 k.y. Milankovitch cycle. The stratigraphic distribution of subaerial exposure surfaces indicates that during Late Carboniferous-Early Permian time, the northern Pangea shelf repeatedly changed from being a shallow subtropical carbonate platform to a vast subaerially exposed carbonate plain, and it implies sea-level amplitudes in excess of 50 m. A major Gondwana deglaciation event is recorded in early Sakmarian shelf successions offshore northern Norway, where rapid flooding led to sediment starvation over an extended period of time, and when sedimentation finally resumed, the cyclic motif is absent. |
format |
Article in Journal/Newspaper |
author |
Stemmerik, Lars |
author_facet |
Stemmerik, Lars |
author_sort |
Stemmerik, Lars |
title |
Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
title_short |
Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
title_full |
Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
title_fullStr |
Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
title_full_unstemmed |
Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea |
title_sort |
influence of late paleozoic gondwana glaciations on the depositional evolution of the northern pangean shelf, north greenland, svalbard and the barents sea |
publishDate |
2008 |
url |
https://curis.ku.dk/portal/da/publications/influence-of-late-paleozoic-gondwana-glaciations-on-the-depositional-evolution-of-the-northern-pangean-shelf-north-greenland-svalbard-and-the-barents-sea(d8d6ead0-a5b5-11dd-b5e9-000ea68e967b).html https://doi.org/10.1130/2008.2441(14 |
geographic |
Barents Sea Greenland Norway Svalbard |
geographic_facet |
Barents Sea Greenland Norway Svalbard |
genre |
Barents Sea Greenland Grønland North Greenland Northern Norway Svalbard |
genre_facet |
Barents Sea Greenland Grønland North Greenland Northern Norway Svalbard |
op_source |
Stemmerik , L 2008 , ' Influence of Late Paleozoic Gondwana glaciations on the depositional evolution of the northern Pangean shelf, North Greenland, Svalbard and the Barents Sea ' , Geological Society of America. Special Papers , vol. 441 , pp. 205-217 . https://doi.org/10.1130/2008.2441(14) |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1130/2008.2441(14 |
_version_ |
1788060071158087680 |