Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology
In this study, single-grain mineral geochemistry, detrital zircon geochronology, and conventional heavy-mineral analysis are used to elucidate sediment transport pathways that existed in the North Atlantic region during the Triassic. The presence of lateral and axial drainage systems is identified a...
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Geological Society of America
2021
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Online Access: | http://hdl.handle.net/10566/7266 https://doi.org/10.1130/GES02277.1 |
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ftunivwesterncrr:oai:repository.uwc.ac.za:10566/7266 2023-05-15T16:03:48+02:00 Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology Andrews, Steven D. Morton, Andrew Frei, Dirk 2021 application/pdf http://hdl.handle.net/10566/7266 https://doi.org/10.1130/GES02277.1 en eng Geological Society of America Andrews, S. D. et al. (2021). Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology. Geosphere,17 (2) , pp.479-500. https://doi.org/10.1130/GES02277.1 1553-040X https://doi.org/10.1130/GES02277.1 http://hdl.handle.net/10566/7266 Mineral chemistry North Atlantic Detrital zircon geochronology Geochemistry Axial drainage systems Article 2021 ftunivwesterncrr https://doi.org/10.1130/GES02277.1 2022-04-26T18:58:09Z In this study, single-grain mineral geochemistry, detrital zircon geochronology, and conventional heavy-mineral analysis are used to elucidate sediment transport pathways that existed in the North Atlantic region during the Triassic. The presence of lateral and axial drainage systems is identified and their source regions are constrained. Axial systems are suggested to have likely delivered sediment sourced in East Greenland (Milne Land–Renland) as far south as the south Viking Graben (>800 km). Furthermore, the data highlight the existence of lateral systems issuing from Western Norway and the Shetland Platform as well as a major east-west–aligned drainage divide positioned adjacent to the Milne Land–Renland region. This divide separated the catchments that flowed north to the Boreal Ocean from those that flowed south into a series of endoreic basins and, ultimately, the Tethys Sea. A further potential drainage divide is identified to the west of Shetland. The data presented and the conclusions reached have major implications for reservoir prediction, as well as correlation, throughout the region. Furthermore, understanding the drainage networks that existed during the Triassic can help constrain paleogeographic reconstructions and provides an important framework for the construction of facies models in the region. Article in Journal/Newspaper East Greenland Greenland Milne Land North Atlantic University of the Western Cap: UWC Research Repository Greenland Milne Land ENVELOPE(-26.750,-26.750,70.683,70.683) Norway Renland ENVELOPE(-26.750,-26.750,71.200,71.200) Geosphere 17 2 479 500 |
institution |
Open Polar |
collection |
University of the Western Cap: UWC Research Repository |
op_collection_id |
ftunivwesterncrr |
language |
English |
topic |
Mineral chemistry North Atlantic Detrital zircon geochronology Geochemistry Axial drainage systems |
spellingShingle |
Mineral chemistry North Atlantic Detrital zircon geochronology Geochemistry Axial drainage systems Andrews, Steven D. Morton, Andrew Frei, Dirk Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
topic_facet |
Mineral chemistry North Atlantic Detrital zircon geochronology Geochemistry Axial drainage systems |
description |
In this study, single-grain mineral geochemistry, detrital zircon geochronology, and conventional heavy-mineral analysis are used to elucidate sediment transport pathways that existed in the North Atlantic region during the Triassic. The presence of lateral and axial drainage systems is identified and their source regions are constrained. Axial systems are suggested to have likely delivered sediment sourced in East Greenland (Milne Land–Renland) as far south as the south Viking Graben (>800 km). Furthermore, the data highlight the existence of lateral systems issuing from Western Norway and the Shetland Platform as well as a major east-west–aligned drainage divide positioned adjacent to the Milne Land–Renland region. This divide separated the catchments that flowed north to the Boreal Ocean from those that flowed south into a series of endoreic basins and, ultimately, the Tethys Sea. A further potential drainage divide is identified to the west of Shetland. The data presented and the conclusions reached have major implications for reservoir prediction, as well as correlation, throughout the region. Furthermore, understanding the drainage networks that existed during the Triassic can help constrain paleogeographic reconstructions and provides an important framework for the construction of facies models in the region. |
format |
Article in Journal/Newspaper |
author |
Andrews, Steven D. Morton, Andrew Frei, Dirk |
author_facet |
Andrews, Steven D. Morton, Andrew Frei, Dirk |
author_sort |
Andrews, Steven D. |
title |
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
title_short |
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
title_full |
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
title_fullStr |
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
title_full_unstemmed |
Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
title_sort |
reconstructing drainage pathways in the north atlantic during the triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology |
publisher |
Geological Society of America |
publishDate |
2021 |
url |
http://hdl.handle.net/10566/7266 https://doi.org/10.1130/GES02277.1 |
long_lat |
ENVELOPE(-26.750,-26.750,70.683,70.683) ENVELOPE(-26.750,-26.750,71.200,71.200) |
geographic |
Greenland Milne Land Norway Renland |
geographic_facet |
Greenland Milne Land Norway Renland |
genre |
East Greenland Greenland Milne Land North Atlantic |
genre_facet |
East Greenland Greenland Milne Land North Atlantic |
op_relation |
Andrews, S. D. et al. (2021). Reconstructing drainage pathways in the North Atlantic during the Triassic utilizing heavy minerals, mineral chemistry, and detrital zircon geochronology. Geosphere,17 (2) , pp.479-500. https://doi.org/10.1130/GES02277.1 1553-040X https://doi.org/10.1130/GES02277.1 http://hdl.handle.net/10566/7266 |
op_doi |
https://doi.org/10.1130/GES02277.1 |
container_title |
Geosphere |
container_volume |
17 |
container_issue |
2 |
container_start_page |
479 |
op_container_end_page |
500 |
_version_ |
1766399494476267520 |