Geochronology and the evolution of Australia in the Mesozoic
The Mesozoic geological history of the Australian continent saw the dispersal of Gondwana, of which Australia was part, and a change from progressive accretion of crust to the eastern one-third of the continent to a passive margin as the subduction zone moved much further to the east. The developmen...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/34886 2024-01-14T10:02:20+01:00 Geochronology and the evolution of Australia in the Mesozoic McDougall, Ian http://hdl.handle.net/1885/34886 https://doi.org/10.1080/08120090802163559 https://openresearch-repository.anu.edu.au/bitstream/1885/34886/5/McDougal_Geochronology_%2526_the_evolution_2008.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/34886/7/01_McDougall_Geochronology_and_the_2008.pdf.jpg unknown Blackwell Publishing Ltd 0812-0099 http://hdl.handle.net/1885/34886 doi:10.1080/08120090802163559 https://openresearch-repository.anu.edu.au/bitstream/1885/34886/5/McDougal_Geochronology_%2526_the_evolution_2008.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/34886/7/01_McDougall_Geochronology_and_the_2008.pdf.jpg Australian Journal of Earth Sciences Keywords: accretion continental breakup geochronology geological record Gondwana magmatism Mesozoic passive margin seafloor spreading subduction zone tectonic evolution Australasia Australia Australia Tasman Fold Belt Journal article ftanucanberra https://doi.org/10.1080/08120090802163559 2023-12-15T09:39:24Z The Mesozoic geological history of the Australian continent saw the dispersal of Gondwana, of which Australia was part, and a change from progressive accretion of crust to the eastern one-third of the continent to a passive margin as the subduction zone moved much further to the east. The development of new seafloor adjacent to the west, south and east coasts of the continent records the breakup history and the formation of the Australian tectonic plate which has moved in an essentially northerly azimuth away from Antarctica over much of the last 100 million years. Geochronology directly or indirectly through various time-scales, in concert with many other disciplines, has played a significant role in our present understanding of the Mesozoic geological history of Australia. The role of these time-scales in the interpretation of the geological evolution of Australia during the Mesozoic is highlighted, the final stages of development of the Tasman Fold Belt are briefly discussed, and the widespread tholeiitic magmatism in Tasmania during the Middle Jurassic is examined again in the broader context of similar magmatism across Antarctica and into southern Africa. Article in Journal/Newspaper Antarc* Antarctica Australian National University: ANU Digital Collections Australian Journal of Earth Sciences 55 6-7 849 864 |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
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unknown |
topic |
Keywords: accretion continental breakup geochronology geological record Gondwana magmatism Mesozoic passive margin seafloor spreading subduction zone tectonic evolution Australasia Australia Australia Tasman Fold Belt |
spellingShingle |
Keywords: accretion continental breakup geochronology geological record Gondwana magmatism Mesozoic passive margin seafloor spreading subduction zone tectonic evolution Australasia Australia Australia Tasman Fold Belt McDougall, Ian Geochronology and the evolution of Australia in the Mesozoic |
topic_facet |
Keywords: accretion continental breakup geochronology geological record Gondwana magmatism Mesozoic passive margin seafloor spreading subduction zone tectonic evolution Australasia Australia Australia Tasman Fold Belt |
description |
The Mesozoic geological history of the Australian continent saw the dispersal of Gondwana, of which Australia was part, and a change from progressive accretion of crust to the eastern one-third of the continent to a passive margin as the subduction zone moved much further to the east. The development of new seafloor adjacent to the west, south and east coasts of the continent records the breakup history and the formation of the Australian tectonic plate which has moved in an essentially northerly azimuth away from Antarctica over much of the last 100 million years. Geochronology directly or indirectly through various time-scales, in concert with many other disciplines, has played a significant role in our present understanding of the Mesozoic geological history of Australia. The role of these time-scales in the interpretation of the geological evolution of Australia during the Mesozoic is highlighted, the final stages of development of the Tasman Fold Belt are briefly discussed, and the widespread tholeiitic magmatism in Tasmania during the Middle Jurassic is examined again in the broader context of similar magmatism across Antarctica and into southern Africa. |
format |
Article in Journal/Newspaper |
author |
McDougall, Ian |
author_facet |
McDougall, Ian |
author_sort |
McDougall, Ian |
title |
Geochronology and the evolution of Australia in the Mesozoic |
title_short |
Geochronology and the evolution of Australia in the Mesozoic |
title_full |
Geochronology and the evolution of Australia in the Mesozoic |
title_fullStr |
Geochronology and the evolution of Australia in the Mesozoic |
title_full_unstemmed |
Geochronology and the evolution of Australia in the Mesozoic |
title_sort |
geochronology and the evolution of australia in the mesozoic |
publisher |
Blackwell Publishing Ltd |
url |
http://hdl.handle.net/1885/34886 https://doi.org/10.1080/08120090802163559 https://openresearch-repository.anu.edu.au/bitstream/1885/34886/5/McDougal_Geochronology_%2526_the_evolution_2008.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/34886/7/01_McDougall_Geochronology_and_the_2008.pdf.jpg |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Australian Journal of Earth Sciences |
op_relation |
0812-0099 http://hdl.handle.net/1885/34886 doi:10.1080/08120090802163559 https://openresearch-repository.anu.edu.au/bitstream/1885/34886/5/McDougal_Geochronology_%2526_the_evolution_2008.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/34886/7/01_McDougall_Geochronology_and_the_2008.pdf.jpg |
op_doi |
https://doi.org/10.1080/08120090802163559 |
container_title |
Australian Journal of Earth Sciences |
container_volume |
55 |
container_issue |
6-7 |
container_start_page |
849 |
op_container_end_page |
864 |
_version_ |
1788057305915326464 |