Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard
The Bravaisberget Formation of southern Spitsbergen (the youngest formation of the Sassendalen Group; Middle Triassic–Carnian) comprises a succession of organic-rich and sandy phosphogenic deposits that developed in a marginal part of the Svalbard basin, in response to a high biological productivity...
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ftjgq:oai:geojournals.pgi.gov.pl:article/23635 2024-09-09T19:44:01+00:00 Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard Krajewski, Krzysztof P. Weitschat, Wolfgang 2015-05-27 application/pdf https://gq.pgi.gov.pl/asgp/article/view/23635 https://doi.org/10.14241/asgp.2014.005 eng eng Annales Societatis Geologorum Poloniae https://gq.pgi.gov.pl/asgp/article/view/23635/16442 https://gq.pgi.gov.pl/asgp/article/view/23635 doi:10.14241/asgp.2014.005 Annales Societatis Geologorum Poloniae; Vol. 85 No. 1 (2015); 151-175, doi:10.14241/asgp.2014.005 Annales Societatis Geologorum Poloniae; Tom 85 Nr 1 (2015); 151-175, doi:10.14241/asgp.2014.005 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2015 ftjgq https://doi.org/10.14241/asgp.2014.005 2024-07-30T03:29:09Z The Bravaisberget Formation of southern Spitsbergen (the youngest formation of the Sassendalen Group; Middle Triassic–Carnian) comprises a succession of organic-rich and sandy phosphogenic deposits that developed in a marginal part of the Svalbard basin, in response to a high biological productivity event in the Barents Shelf. The basin margin was bounded on the southwest by the elevated structure of the SÝrkapp-Hornsund High. North of the high, the subsiding shelf bottom stretched from southern to western Spitsbergen. The organic-rich, fine-grained sedimentation that gave rise to the formation of the Passhatten Member extended southward after the Anisian transgression; it reached the topmost part of the SÝrkapp -Hornsund High during the maximum flooding of the basin in the early Ladinian. The sudden appearance of deltaic deposits of the Karentoppen Member directly after the maximum flooding was a consequence of short-lived tectonic activity of the SÝrkapp -Hornsund High and the adjacent land area. Reworking and redistribution of the deltaic sediments during the Ladinian brought about the formation of shallow-marine clastic facies of the Somovbreen Member. Decreasing depositional rates close to the Middle-Late Triassic boundary led to a regional hiatus and the formation of a condensed phosphorite horizon at the top of the Somovbreen Member. The sedimentation of the Bravaisberget Formation ended in the early Carnian. The youngest siliciclastic and spiculitic sediments of the Van Keulenfjorden Member were deposited in southern and western Spitsbergen in shallow- to marginal-marine environments. Article in Journal/Newspaper Hornsund Svalbard Van Keulenfjorden Spitsbergen Geological Quarterly Svalbard Hornsund ENVELOPE(15.865,15.865,76.979,76.979) Van Keulenfjorden ENVELOPE(15.489,15.489,77.559,77.559) Sassendalen ENVELOPE(17.211,17.211,78.266,78.266) Bravaisberget ENVELOPE(14.999,14.999,77.623,77.623) Passhatten ENVELOPE(15.488,15.488,77.385,77.385) Somovbreen ENVELOPE(16.127,16.127,77.169,77.169) Karentoppen ENVELOPE(16.351,16.351,76.739,76.739) Annales Societatis Geologorum Poloniae 151 175 |
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Open Polar |
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Geological Quarterly |
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ftjgq |
language |
English |
description |
The Bravaisberget Formation of southern Spitsbergen (the youngest formation of the Sassendalen Group; Middle Triassic–Carnian) comprises a succession of organic-rich and sandy phosphogenic deposits that developed in a marginal part of the Svalbard basin, in response to a high biological productivity event in the Barents Shelf. The basin margin was bounded on the southwest by the elevated structure of the SÝrkapp-Hornsund High. North of the high, the subsiding shelf bottom stretched from southern to western Spitsbergen. The organic-rich, fine-grained sedimentation that gave rise to the formation of the Passhatten Member extended southward after the Anisian transgression; it reached the topmost part of the SÝrkapp -Hornsund High during the maximum flooding of the basin in the early Ladinian. The sudden appearance of deltaic deposits of the Karentoppen Member directly after the maximum flooding was a consequence of short-lived tectonic activity of the SÝrkapp -Hornsund High and the adjacent land area. Reworking and redistribution of the deltaic sediments during the Ladinian brought about the formation of shallow-marine clastic facies of the Somovbreen Member. Decreasing depositional rates close to the Middle-Late Triassic boundary led to a regional hiatus and the formation of a condensed phosphorite horizon at the top of the Somovbreen Member. The sedimentation of the Bravaisberget Formation ended in the early Carnian. The youngest siliciclastic and spiculitic sediments of the Van Keulenfjorden Member were deposited in southern and western Spitsbergen in shallow- to marginal-marine environments. |
format |
Article in Journal/Newspaper |
author |
Krajewski, Krzysztof P. Weitschat, Wolfgang |
spellingShingle |
Krajewski, Krzysztof P. Weitschat, Wolfgang Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
author_facet |
Krajewski, Krzysztof P. Weitschat, Wolfgang |
author_sort |
Krajewski, Krzysztof P. |
title |
Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
title_short |
Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
title_full |
Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
title_fullStr |
Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
title_full_unstemmed |
Depositional history of the youngest strata of the Sassendalen Group (Bravaisberget Formation, Middle Triassic–Carnian) in southern Spitsbergen, Svalbard |
title_sort |
depositional history of the youngest strata of the sassendalen group (bravaisberget formation, middle triassic–carnian) in southern spitsbergen, svalbard |
publisher |
Annales Societatis Geologorum Poloniae |
publishDate |
2015 |
url |
https://gq.pgi.gov.pl/asgp/article/view/23635 https://doi.org/10.14241/asgp.2014.005 |
long_lat |
ENVELOPE(15.865,15.865,76.979,76.979) ENVELOPE(15.489,15.489,77.559,77.559) ENVELOPE(17.211,17.211,78.266,78.266) ENVELOPE(14.999,14.999,77.623,77.623) ENVELOPE(15.488,15.488,77.385,77.385) ENVELOPE(16.127,16.127,77.169,77.169) ENVELOPE(16.351,16.351,76.739,76.739) |
geographic |
Svalbard Hornsund Van Keulenfjorden Sassendalen Bravaisberget Passhatten Somovbreen Karentoppen |
geographic_facet |
Svalbard Hornsund Van Keulenfjorden Sassendalen Bravaisberget Passhatten Somovbreen Karentoppen |
genre |
Hornsund Svalbard Van Keulenfjorden Spitsbergen |
genre_facet |
Hornsund Svalbard Van Keulenfjorden Spitsbergen |
op_source |
Annales Societatis Geologorum Poloniae; Vol. 85 No. 1 (2015); 151-175, doi:10.14241/asgp.2014.005 Annales Societatis Geologorum Poloniae; Tom 85 Nr 1 (2015); 151-175, doi:10.14241/asgp.2014.005 |
op_relation |
https://gq.pgi.gov.pl/asgp/article/view/23635/16442 https://gq.pgi.gov.pl/asgp/article/view/23635 doi:10.14241/asgp.2014.005 |
op_doi |
https://doi.org/10.14241/asgp.2014.005 |
container_title |
Annales Societatis Geologorum Poloniae |
container_start_page |
151 |
op_container_end_page |
175 |
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1809913719086383104 |