Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity
Mid-Cretaceous igneous rocks of central Marie Byrd Land, Antarctica record a rapid change from subduction-related to rift-related magmatism. This correlates with the final stages of subduction of the Phoenix plate and the subsequent rifting of New Zealand from West Antarctica, prior to the opening o...
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1994
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Online Access: | http://nora.nerc.ac.uk/id/eprint/517540/ https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 |
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ftnerc:oai:nora.nerc.ac.uk:517540 2023-05-15T13:49:34+02:00 Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity Weaver, S. D. Storey, B. C. Pankhurst, R. J. Mukasa, S. B. DiVenere, V. J. Bradshaw, J. D. 1994-09 http://nora.nerc.ac.uk/id/eprint/517540/ https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 unknown Geological Society of America Weaver, S. D.; Storey, B. C.; Pankhurst, R. J.; Mukasa, S. B.; DiVenere, V. J.; Bradshaw, J. D. 1994 Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity. Geology, 22 (9). 811-814. https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 <https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2> Publication - Article PeerReviewed 1994 ftnerc https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 2023-02-04T19:45:13Z Mid-Cretaceous igneous rocks of central Marie Byrd Land, Antarctica record a rapid change from subduction-related to rift-related magmatism. This correlates with the final stages of subduction of the Phoenix plate and the subsequent rifting of New Zealand from West Antarctica, prior to the opening of the Southern Ocean. Rift magmatism produced diverse A-type granitoids and mafic intrusive rocks of continental flood-basalt affinity that were derived ultimately from lithospheric mantle sources. Rifting was caused by changes in plate boundary forces; however, mantle plume activity may have begun in mid-Cretaceous time, triggering melting of the lithosphere and controlling the locus of rifting. Article in Journal/Newspaper Antarc* Antarctica Antarctica New Zealand Marie Byrd Land Southern Ocean West Antarctica Natural Environment Research Council: NERC Open Research Archive Southern Ocean West Antarctica New Zealand Byrd Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) |
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Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
unknown |
description |
Mid-Cretaceous igneous rocks of central Marie Byrd Land, Antarctica record a rapid change from subduction-related to rift-related magmatism. This correlates with the final stages of subduction of the Phoenix plate and the subsequent rifting of New Zealand from West Antarctica, prior to the opening of the Southern Ocean. Rift magmatism produced diverse A-type granitoids and mafic intrusive rocks of continental flood-basalt affinity that were derived ultimately from lithospheric mantle sources. Rifting was caused by changes in plate boundary forces; however, mantle plume activity may have begun in mid-Cretaceous time, triggering melting of the lithosphere and controlling the locus of rifting. |
format |
Article in Journal/Newspaper |
author |
Weaver, S. D. Storey, B. C. Pankhurst, R. J. Mukasa, S. B. DiVenere, V. J. Bradshaw, J. D. |
spellingShingle |
Weaver, S. D. Storey, B. C. Pankhurst, R. J. Mukasa, S. B. DiVenere, V. J. Bradshaw, J. D. Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
author_facet |
Weaver, S. D. Storey, B. C. Pankhurst, R. J. Mukasa, S. B. DiVenere, V. J. Bradshaw, J. D. |
author_sort |
Weaver, S. D. |
title |
Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
title_short |
Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
title_full |
Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
title_fullStr |
Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
title_full_unstemmed |
Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity |
title_sort |
antarctica-new zealand rifting and marie byrd land lithospheric magmatism linked to ridge subduction and mantle plume activity |
publisher |
Geological Society of America |
publishDate |
1994 |
url |
http://nora.nerc.ac.uk/id/eprint/517540/ https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 |
long_lat |
ENVELOPE(-130.000,-130.000,-78.000,-78.000) |
geographic |
Southern Ocean West Antarctica New Zealand Byrd Marie Byrd Land |
geographic_facet |
Southern Ocean West Antarctica New Zealand Byrd Marie Byrd Land |
genre |
Antarc* Antarctica Antarctica New Zealand Marie Byrd Land Southern Ocean West Antarctica |
genre_facet |
Antarc* Antarctica Antarctica New Zealand Marie Byrd Land Southern Ocean West Antarctica |
op_relation |
Weaver, S. D.; Storey, B. C.; Pankhurst, R. J.; Mukasa, S. B.; DiVenere, V. J.; Bradshaw, J. D. 1994 Antarctica-New Zealand rifting and Marie Byrd Land lithospheric magmatism linked to ridge subduction and mantle plume activity. Geology, 22 (9). 811-814. https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 <https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2> |
op_doi |
https://doi.org/10.1130/0091-7613(1994)022<0811:ANZRAM>2.3.CO;2 |
_version_ |
1766251676583329792 |