Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland
The initial (200-175 Ma) breakup of Pangea was marked by the emplacement of the Large Igneous Provinces (LIPS) of Karoo-Ferrar-SE Australia (KFS) in the back-arc of Panthalassan subduction and by the Central Atlantic Magmatic Province (CAMP) between Africa and the Americas. Seafloor spreading 190-18...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/d388d711-2f4a-49fe-b5ad-8c5cc814f559 2024-10-13T14:02:58+00:00 Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland Veevers, J. J. 2012-03 https://researchers.mq.edu.au/en/publications/d388d711-2f4a-49fe-b5ad-8c5cc814f559 https://doi.org/10.1016/j.earscirev.2011.11.009 eng eng info:eu-repo/semantics/closedAccess Veevers , J J 2012 , ' Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland ' , Earth-Science Reviews , vol. 111 , no. 3-4 , pp. 249-318 . https://doi.org/10.1016/j.earscirev.2011.11.009 Antarctica Conjugates Gondwanaland Reconstruction Pre-drift Pre-rift DRONNING-MAUD-LAND EASTERN GHATS BELT MARIE-BYRD-LAND U-PB ZIRCON LARGE IGNEOUS PROVINCE NORTHERN VICTORIA LAND PRINCE-CHARLES MOUNTAINS HIGH-GRADE METAMORPHISM CAPE-FOLD BELT ULTRAHIGH-TEMPERATURE METAMORPHISM article 2012 ftmacquarieunicr https://doi.org/10.1016/j.earscirev.2011.11.009 2024-09-18T23:49:09Z The initial (200-175 Ma) breakup of Pangea was marked by the emplacement of the Large Igneous Provinces (LIPS) of Karoo-Ferrar-SE Australia (KFS) in the back-arc of Panthalassan subduction and by the Central Atlantic Magmatic Province (CAMP) between Africa and the Americas. Seafloor spreading 190-180 Ma (Stage 1) about the CAMP split Pangea into northern (Laurasia) and southern (Gondwanaland) parts. Subsequent stages at 167 Ma (2), 147 Ma (3), 130 Ma (4), 118 Ma (5), and 83 Ma (6) split conjugate Africa, South America, India, Australia, and Zealandia from Antarctica. Here I review the reconstruction of Antarctica in Gondwanaland. First, seafloor spreading is unwound to re-unite the continent-ocean boundaries (COBs), then the extended (rifted) crust about the suture is restored to its original thickness. A comprehensive review of the U-Pb zircon geochronology of the reconstructed margins of Antarctica and its conjugates shows that certain coeval structures are aligned across the suture. Cross structures of high-order spatial continuity and age correlation are the Lambert-Mahanadi Rift, Pranhita-Godavari-Robert Glacier trend, Gawler-Adelie Craton, and western part of the Gondwanide Fold Belt Cross structures of high-order age correlation but low structural continuity or alignment are, from Africa to Antarctica, the East African-Antarctic Orogen, the Natal and Maud Belts, the Umkondo Group-Ritscherflya Supergroup and LIP, and the Kalahari-Grunehogna Craton; from Antarctica to Zealandia, the Ross-Western and Amundsen-Eastern Provinces; and from Africa through Antarctica to Australia the KFS LIP. (C) 2011 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica Dronning Maud Land Marie Byrd Land Prince Charles Mountains Robert Glacier Victoria Land Macquarie University Research Portal Antarctic Byrd Dronning Maud Land Grunehogna ENVELOPE(-2.750,-2.750,-72.033,-72.033) Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) Prince Charles Mountains ENVELOPE(67.246,67.246,-71.427,-71.427) Ritscherflya ENVELOPE(-9.000,-9.000,-73.000,-73.000) Robert Glacier ENVELOPE(56.312,56.312,-67.186,-67.186) Victoria Land Earth-Science Reviews 111 3-4 249 318 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Antarctica Conjugates Gondwanaland Reconstruction Pre-drift Pre-rift DRONNING-MAUD-LAND EASTERN GHATS BELT MARIE-BYRD-LAND U-PB ZIRCON LARGE IGNEOUS PROVINCE NORTHERN VICTORIA LAND PRINCE-CHARLES MOUNTAINS HIGH-GRADE METAMORPHISM CAPE-FOLD BELT ULTRAHIGH-TEMPERATURE METAMORPHISM |
spellingShingle |
Antarctica Conjugates Gondwanaland Reconstruction Pre-drift Pre-rift DRONNING-MAUD-LAND EASTERN GHATS BELT MARIE-BYRD-LAND U-PB ZIRCON LARGE IGNEOUS PROVINCE NORTHERN VICTORIA LAND PRINCE-CHARLES MOUNTAINS HIGH-GRADE METAMORPHISM CAPE-FOLD BELT ULTRAHIGH-TEMPERATURE METAMORPHISM Veevers, J. J. Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
topic_facet |
Antarctica Conjugates Gondwanaland Reconstruction Pre-drift Pre-rift DRONNING-MAUD-LAND EASTERN GHATS BELT MARIE-BYRD-LAND U-PB ZIRCON LARGE IGNEOUS PROVINCE NORTHERN VICTORIA LAND PRINCE-CHARLES MOUNTAINS HIGH-GRADE METAMORPHISM CAPE-FOLD BELT ULTRAHIGH-TEMPERATURE METAMORPHISM |
description |
The initial (200-175 Ma) breakup of Pangea was marked by the emplacement of the Large Igneous Provinces (LIPS) of Karoo-Ferrar-SE Australia (KFS) in the back-arc of Panthalassan subduction and by the Central Atlantic Magmatic Province (CAMP) between Africa and the Americas. Seafloor spreading 190-180 Ma (Stage 1) about the CAMP split Pangea into northern (Laurasia) and southern (Gondwanaland) parts. Subsequent stages at 167 Ma (2), 147 Ma (3), 130 Ma (4), 118 Ma (5), and 83 Ma (6) split conjugate Africa, South America, India, Australia, and Zealandia from Antarctica. Here I review the reconstruction of Antarctica in Gondwanaland. First, seafloor spreading is unwound to re-unite the continent-ocean boundaries (COBs), then the extended (rifted) crust about the suture is restored to its original thickness. A comprehensive review of the U-Pb zircon geochronology of the reconstructed margins of Antarctica and its conjugates shows that certain coeval structures are aligned across the suture. Cross structures of high-order spatial continuity and age correlation are the Lambert-Mahanadi Rift, Pranhita-Godavari-Robert Glacier trend, Gawler-Adelie Craton, and western part of the Gondwanide Fold Belt Cross structures of high-order age correlation but low structural continuity or alignment are, from Africa to Antarctica, the East African-Antarctic Orogen, the Natal and Maud Belts, the Umkondo Group-Ritscherflya Supergroup and LIP, and the Kalahari-Grunehogna Craton; from Antarctica to Zealandia, the Ross-Western and Amundsen-Eastern Provinces; and from Africa through Antarctica to Australia the KFS LIP. (C) 2011 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Veevers, J. J. |
author_facet |
Veevers, J. J. |
author_sort |
Veevers, J. J. |
title |
Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
title_short |
Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
title_full |
Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
title_fullStr |
Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
title_full_unstemmed |
Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland |
title_sort |
reconstructions before rifting and drifting reveal the geological connections between antarctica and its conjugates in gondwanaland |
publishDate |
2012 |
url |
https://researchers.mq.edu.au/en/publications/d388d711-2f4a-49fe-b5ad-8c5cc814f559 https://doi.org/10.1016/j.earscirev.2011.11.009 |
long_lat |
ENVELOPE(-2.750,-2.750,-72.033,-72.033) ENVELOPE(-130.000,-130.000,-78.000,-78.000) ENVELOPE(67.246,67.246,-71.427,-71.427) ENVELOPE(-9.000,-9.000,-73.000,-73.000) ENVELOPE(56.312,56.312,-67.186,-67.186) |
geographic |
Antarctic Byrd Dronning Maud Land Grunehogna Marie Byrd Land Prince Charles Mountains Ritscherflya Robert Glacier Victoria Land |
geographic_facet |
Antarctic Byrd Dronning Maud Land Grunehogna Marie Byrd Land Prince Charles Mountains Ritscherflya Robert Glacier Victoria Land |
genre |
Antarc* Antarctic Antarctica Dronning Maud Land Marie Byrd Land Prince Charles Mountains Robert Glacier Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica Dronning Maud Land Marie Byrd Land Prince Charles Mountains Robert Glacier Victoria Land |
op_source |
Veevers , J J 2012 , ' Reconstructions before rifting and drifting reveal the geological connections between Antarctica and its conjugates in Gondwanaland ' , Earth-Science Reviews , vol. 111 , no. 3-4 , pp. 249-318 . https://doi.org/10.1016/j.earscirev.2011.11.009 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.earscirev.2011.11.009 |
container_title |
Earth-Science Reviews |
container_volume |
111 |
container_issue |
3-4 |
container_start_page |
249 |
op_container_end_page |
318 |
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1812819413370404864 |