Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin
Understanding the patterns and characteristics of sedimentary deposits on the conjugate Australian‐Antarctic margins is critical to reveal the Cretaceous‐Cenozoic tectonic, oceanographic and climatic conditions in the basin. However, unravelling its evolution has remained difficult due to the differ...
Published in: | Journal of Geophysical Research: Solid Earth |
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Language: | English |
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Wiley-Blackwell Publishing Inc.
2019
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Online Access: | https://eprints.utas.edu.au/31744/ https://eprints.utas.edu.au/31744/2/133052%20-%20Tectonic,%20Oceanographic,%20and%20Climatic%20Controls.pdf https://eprints.utas.edu.au/31744/1/133052%20-%20Tectonic,%20oceanographic,%20and%20climatic%20controls.pdf |
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ftunivtasmania:oai:eprints.utas.edu.au:31744 2023-05-15T13:31:53+02:00 Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin Sauermilch, I Whittaker, JM Bijl, PK Totterdell, JM Jokat, W 2019 application/pdf https://eprints.utas.edu.au/31744/ https://eprints.utas.edu.au/31744/2/133052%20-%20Tectonic,%20Oceanographic,%20and%20Climatic%20Controls.pdf https://eprints.utas.edu.au/31744/1/133052%20-%20Tectonic,%20oceanographic,%20and%20climatic%20controls.pdf en eng Wiley-Blackwell Publishing Inc. https://eprints.utas.edu.au/31744/2/133052%20-%20Tectonic,%20Oceanographic,%20and%20Climatic%20Controls.pdf https://eprints.utas.edu.au/31744/1/133052%20-%20Tectonic,%20oceanographic,%20and%20climatic%20controls.pdf Sauermilch, I, Whittaker, JM orcid:0000-0002-3170-3935 , Bijl, PK, Totterdell, JM and Jokat, W 2019 , 'Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin' , Journal of Geophysical Research: Solid Earth, vol. 124, no. 8 , 7699–7724 , doi:10.1029/2018JB016683 <http://dx.doi.org/10.1029/2018JB016683>. Eocene Oligocene Australia Antarctica contourites seismic Article PeerReviewed 2019 ftunivtasmania https://doi.org/10.1029/2018JB016683 2021-09-20T22:18:03Z Understanding the patterns and characteristics of sedimentary deposits on the conjugate Australian‐Antarctic margins is critical to reveal the Cretaceous‐Cenozoic tectonic, oceanographic and climatic conditions in the basin. However, unravelling its evolution has remained difficult due to the different seismic stratigraphic interpretations on each margin and sparse drill sites. Here, for the first time, we collate all available seismic reflection profiles on both margins and use newly available offshore drilling data, to develop a consistent seismic stratigraphic framework across the Australian‐Antarctic basins. We find sedimentation patterns similar in structure and thickness, prior to the onset of Antarctic glaciation, enabling the basin‐wide correlation of four major sedimentary units and their depositional history. We interpret that during the warm and humid Late Cretaceous (~83‐65 Ma), large onshore river systems on both Australia and Antarctica resulted in deltaic sediment deposition offshore. We interpret that the onset of clockwise bottom currents during the Early Paleogene (~58‐48 Ma) formed prominent sediment drift deposits along both continental rises. We suggest that these currents strengthened and progressed farther east through the Eocene. Coevally, global cooling ( Article in Journal/Newspaper Antarc* Antarctic Antarctica University of Tasmania: UTas ePrints Antarctic Australian Antarctic Basin ENVELOPE(120.000,120.000,-60.000,-60.000) Australian-Antarctic Basin ENVELOPE(134.115,134.115,-58.800,-58.800) Journal of Geophysical Research: Solid Earth 124 8 7699 7724 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Eocene Oligocene Australia Antarctica contourites seismic |
spellingShingle |
Eocene Oligocene Australia Antarctica contourites seismic Sauermilch, I Whittaker, JM Bijl, PK Totterdell, JM Jokat, W Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
topic_facet |
Eocene Oligocene Australia Antarctica contourites seismic |
description |
Understanding the patterns and characteristics of sedimentary deposits on the conjugate Australian‐Antarctic margins is critical to reveal the Cretaceous‐Cenozoic tectonic, oceanographic and climatic conditions in the basin. However, unravelling its evolution has remained difficult due to the different seismic stratigraphic interpretations on each margin and sparse drill sites. Here, for the first time, we collate all available seismic reflection profiles on both margins and use newly available offshore drilling data, to develop a consistent seismic stratigraphic framework across the Australian‐Antarctic basins. We find sedimentation patterns similar in structure and thickness, prior to the onset of Antarctic glaciation, enabling the basin‐wide correlation of four major sedimentary units and their depositional history. We interpret that during the warm and humid Late Cretaceous (~83‐65 Ma), large onshore river systems on both Australia and Antarctica resulted in deltaic sediment deposition offshore. We interpret that the onset of clockwise bottom currents during the Early Paleogene (~58‐48 Ma) formed prominent sediment drift deposits along both continental rises. We suggest that these currents strengthened and progressed farther east through the Eocene. Coevally, global cooling ( |
format |
Article in Journal/Newspaper |
author |
Sauermilch, I Whittaker, JM Bijl, PK Totterdell, JM Jokat, W |
author_facet |
Sauermilch, I Whittaker, JM Bijl, PK Totterdell, JM Jokat, W |
author_sort |
Sauermilch, I |
title |
Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
title_short |
Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
title_full |
Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
title_fullStr |
Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
title_full_unstemmed |
Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin |
title_sort |
tectonic, oceanographic, and climatic controls on the cretaceous-cenozoic sedimentary record of the australian-antarctic basin |
publisher |
Wiley-Blackwell Publishing Inc. |
publishDate |
2019 |
url |
https://eprints.utas.edu.au/31744/ https://eprints.utas.edu.au/31744/2/133052%20-%20Tectonic,%20Oceanographic,%20and%20Climatic%20Controls.pdf https://eprints.utas.edu.au/31744/1/133052%20-%20Tectonic,%20oceanographic,%20and%20climatic%20controls.pdf |
long_lat |
ENVELOPE(120.000,120.000,-60.000,-60.000) ENVELOPE(134.115,134.115,-58.800,-58.800) |
geographic |
Antarctic Australian Antarctic Basin Australian-Antarctic Basin |
geographic_facet |
Antarctic Australian Antarctic Basin Australian-Antarctic Basin |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
https://eprints.utas.edu.au/31744/2/133052%20-%20Tectonic,%20Oceanographic,%20and%20Climatic%20Controls.pdf https://eprints.utas.edu.au/31744/1/133052%20-%20Tectonic,%20oceanographic,%20and%20climatic%20controls.pdf Sauermilch, I, Whittaker, JM orcid:0000-0002-3170-3935 , Bijl, PK, Totterdell, JM and Jokat, W 2019 , 'Tectonic, oceanographic, and climatic controls on the Cretaceous-Cenozoic sedimentary record of the Australian-Antarctic Basin' , Journal of Geophysical Research: Solid Earth, vol. 124, no. 8 , 7699–7724 , doi:10.1029/2018JB016683 <http://dx.doi.org/10.1029/2018JB016683>. |
op_doi |
https://doi.org/10.1029/2018JB016683 |
container_title |
Journal of Geophysical Research: Solid Earth |
container_volume |
124 |
container_issue |
8 |
container_start_page |
7699 |
op_container_end_page |
7724 |
_version_ |
1766022088129249280 |