Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise
The Rio Grande Rise in the western South Atlantic Ocean has been interpreted as either an oceanic plateau related to the Tristan-Gough mantle plume, or a fragment of detached continental crust. Here we present new major and trace element data for volcanic rocks from the western and eastern Rio Grand...
Published in: | Communications Earth & Environment |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/23443 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-234439 https://doi.org/10.1038/s43247-022-00349-1 https://opus4.kobv.de/opus4-fau/files/23443/s43247-022-00349-1.pdf |
id |
ftuniverlangen:oai:ub.uni-erlangen.de-opus:23443 |
---|---|
record_format |
openpolar |
spelling |
ftuniverlangen:oai:ub.uni-erlangen.de-opus:23443 2023-07-23T04:21:45+02:00 Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise Hoyer, Patrick A. Haase, Karsten M. Regelous, Marcel O’Connor, John M. Homrighausen, Stephan Geissler, Wolfram H. Jokat, Wilfried 2022-02-07 application/pdf https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/23443 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-234439 https://doi.org/10.1038/s43247-022-00349-1 https://opus4.kobv.de/opus4-fau/files/23443/s43247-022-00349-1.pdf eng eng https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/23443 urn:nbn:de:bvb:29-opus4-234439 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-234439 https://doi.org/10.1038/s43247-022-00349-1 https://opus4.kobv.de/opus4-fau/files/23443/s43247-022-00349-1.pdf https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess ddc:550 article doc-type:article 2022 ftuniverlangen https://doi.org/10.1038/s43247-022-00349-1 2023-07-02T22:42:44Z The Rio Grande Rise in the western South Atlantic Ocean has been interpreted as either an oceanic plateau related to the Tristan-Gough mantle plume, or a fragment of detached continental crust. Here we present new major and trace element data for volcanic rocks from the western and eastern Rio Grande Rise and the adjacent Jean Charcot Seamount Chain. The eastern Rio Grande Rise and older parts of the western Rio Grande Rise are comprised of tholeiitic basalt with moderately enriched trace element compositions and likely formed above the Tristan-Gough mantle plume close to the southern Mid-Atlantic Ridge. Younger alkalic lavas from the western Rio Grande Rise and the Jean Charcot Seamount Chain were formed by lower degrees of melting beneath thicker lithosphere in an intraplate setting possibly during rifting of the plateau. There is no clear geochemical evidence that remnants of continental crust are present beneath the Rio Grande Rise. Article in Journal/Newspaper South Atlantic Ocean OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg Mid-Atlantic Ridge Tristan ENVELOPE(140.900,140.900,-66.735,-66.735) Gough ENVELOPE(159.367,159.367,-81.633,-81.633) Charcot ENVELOPE(139.017,139.017,-69.367,-69.367) Communications Earth & Environment 3 1 |
institution |
Open Polar |
collection |
OPUS FAU - Online publication system of Friedrich-Alexander-Universität Erlangen-Nürnberg |
op_collection_id |
ftuniverlangen |
language |
English |
topic |
ddc:550 |
spellingShingle |
ddc:550 Hoyer, Patrick A. Haase, Karsten M. Regelous, Marcel O’Connor, John M. Homrighausen, Stephan Geissler, Wolfram H. Jokat, Wilfried Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
topic_facet |
ddc:550 |
description |
The Rio Grande Rise in the western South Atlantic Ocean has been interpreted as either an oceanic plateau related to the Tristan-Gough mantle plume, or a fragment of detached continental crust. Here we present new major and trace element data for volcanic rocks from the western and eastern Rio Grande Rise and the adjacent Jean Charcot Seamount Chain. The eastern Rio Grande Rise and older parts of the western Rio Grande Rise are comprised of tholeiitic basalt with moderately enriched trace element compositions and likely formed above the Tristan-Gough mantle plume close to the southern Mid-Atlantic Ridge. Younger alkalic lavas from the western Rio Grande Rise and the Jean Charcot Seamount Chain were formed by lower degrees of melting beneath thicker lithosphere in an intraplate setting possibly during rifting of the plateau. There is no clear geochemical evidence that remnants of continental crust are present beneath the Rio Grande Rise. |
format |
Article in Journal/Newspaper |
author |
Hoyer, Patrick A. Haase, Karsten M. Regelous, Marcel O’Connor, John M. Homrighausen, Stephan Geissler, Wolfram H. Jokat, Wilfried |
author_facet |
Hoyer, Patrick A. Haase, Karsten M. Regelous, Marcel O’Connor, John M. Homrighausen, Stephan Geissler, Wolfram H. Jokat, Wilfried |
author_sort |
Hoyer, Patrick A. |
title |
Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
title_short |
Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
title_full |
Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
title_fullStr |
Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
title_full_unstemmed |
Mantle plume and rift-related volcanism during the evolution of the Rio Grande Rise |
title_sort |
mantle plume and rift-related volcanism during the evolution of the rio grande rise |
publishDate |
2022 |
url |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/23443 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-234439 https://doi.org/10.1038/s43247-022-00349-1 https://opus4.kobv.de/opus4-fau/files/23443/s43247-022-00349-1.pdf |
long_lat |
ENVELOPE(140.900,140.900,-66.735,-66.735) ENVELOPE(159.367,159.367,-81.633,-81.633) ENVELOPE(139.017,139.017,-69.367,-69.367) |
geographic |
Mid-Atlantic Ridge Tristan Gough Charcot |
geographic_facet |
Mid-Atlantic Ridge Tristan Gough Charcot |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
https://opus4.kobv.de/opus4-fau/frontdoor/index/index/docId/23443 urn:nbn:de:bvb:29-opus4-234439 https://nbn-resolving.org/urn:nbn:de:bvb:29-opus4-234439 https://doi.org/10.1038/s43247-022-00349-1 https://opus4.kobv.de/opus4-fau/files/23443/s43247-022-00349-1.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.de info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s43247-022-00349-1 |
container_title |
Communications Earth & Environment |
container_volume |
3 |
container_issue |
1 |
_version_ |
1772187912638562304 |