Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones
Sea floor spreading between Antarctica and Australia was resolved into two stages: (1) fast (27 mm/year), from the present to 49 Ma on a northerly azimuth constrained by well mapped fracture zones; and (2) slow (4.5 mm/year), from 49 Ma to break-up at 96 Ma. A northwesterly azimuth was inferred by i...
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1990
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Online Access: | https://researchers.mq.edu.au/en/publications/64e3cf78-345c-456b-87a2-2ba27e95fda2 https://doi.org/10.1080/08120099008727914 http://www.scopus.com/inward/record.url?scp=0025584571&partnerID=8YFLogxK |
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/64e3cf78-345c-456b-87a2-2ba27e95fda2 2024-04-28T08:02:57+00:00 Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones Veevers, J. J. 1990 https://researchers.mq.edu.au/en/publications/64e3cf78-345c-456b-87a2-2ba27e95fda2 https://doi.org/10.1080/08120099008727914 http://www.scopus.com/inward/record.url?scp=0025584571&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Veevers , J J 1990 , ' Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones ' , Australian Journal of Earth Sciences , vol. 37 , no. 2 , pp. 123-126 . https://doi.org/10.1080/08120099008727914 Antarctica-Australia fit Ridge jumps Satellite gravity anomalies Sea floor spreading pattern article 1990 ftmacquarieunicr https://doi.org/10.1080/08120099008727914 2024-04-09T15:11:36Z Sea floor spreading between Antarctica and Australia was resolved into two stages: (1) fast (27 mm/year), from the present to 49 Ma on a northerly azimuth constrained by well mapped fracture zones; and (2) slow (4.5 mm/year), from 49 Ma to break-up at 96 Ma. A northwesterly azimuth was inferred by interpolation between the position of the continents at 49 Ma and the initial fit of the continents at break-up at 96 Ma; during this stage, jumps to Australia of the spreading ridge west of the Spencer-George V Fracture Zone were postulated to have transferred parts of the Australian Plate to Antarctica. Recently acquired satellite gravity trends confirm the inferred northwesterly azimuth and ridge jumps of the early spreading stage. Article in Journal/Newspaper Antarc* Antarctica Macquarie University Research Portal Australian Journal of Earth Sciences 37 2 123 126 |
institution |
Open Polar |
collection |
Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Antarctica-Australia fit Ridge jumps Satellite gravity anomalies Sea floor spreading pattern |
spellingShingle |
Antarctica-Australia fit Ridge jumps Satellite gravity anomalies Sea floor spreading pattern Veevers, J. J. Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
topic_facet |
Antarctica-Australia fit Ridge jumps Satellite gravity anomalies Sea floor spreading pattern |
description |
Sea floor spreading between Antarctica and Australia was resolved into two stages: (1) fast (27 mm/year), from the present to 49 Ma on a northerly azimuth constrained by well mapped fracture zones; and (2) slow (4.5 mm/year), from 49 Ma to break-up at 96 Ma. A northwesterly azimuth was inferred by interpolation between the position of the continents at 49 Ma and the initial fit of the continents at break-up at 96 Ma; during this stage, jumps to Australia of the spreading ridge west of the Spencer-George V Fracture Zone were postulated to have transferred parts of the Australian Plate to Antarctica. Recently acquired satellite gravity trends confirm the inferred northwesterly azimuth and ridge jumps of the early spreading stage. |
format |
Article in Journal/Newspaper |
author |
Veevers, J. J. |
author_facet |
Veevers, J. J. |
author_sort |
Veevers, J. J. |
title |
Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
title_short |
Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
title_full |
Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
title_fullStr |
Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
title_full_unstemmed |
Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones |
title_sort |
antarctica-australia fit resolved by satellite mapping of oceanic fracture zones |
publishDate |
1990 |
url |
https://researchers.mq.edu.au/en/publications/64e3cf78-345c-456b-87a2-2ba27e95fda2 https://doi.org/10.1080/08120099008727914 http://www.scopus.com/inward/record.url?scp=0025584571&partnerID=8YFLogxK |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Veevers , J J 1990 , ' Antarctica-Australia fit resolved by satellite mapping of oceanic fracture zones ' , Australian Journal of Earth Sciences , vol. 37 , no. 2 , pp. 123-126 . https://doi.org/10.1080/08120099008727914 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/08120099008727914 |
container_title |
Australian Journal of Earth Sciences |
container_volume |
37 |
container_issue |
2 |
container_start_page |
123 |
op_container_end_page |
126 |
_version_ |
1797574196395507712 |