The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific
Intraplate volcanism across Zealandia, South Eastern Australia, the Ross Sea Embayment and Marie Byrd Land in Antarctica define a magmatic province characterised by basalts with elevated 206 Pb/ 204 Pb (18.9–22.5), 87 Sr/ 86 Sr = ∼0.7035, Light Rare Earth enrichment [(Ce/Yb) n > 10], and convex-u...
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ftdatacite:10.6084/m9.figshare.7108760 2023-05-15T13:34:46+02:00 The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific Gamble, John A. Adams, Chris J. Morris, Paul A. Wysoczanski, Richard J. Handler, Monica Timm, Christian 2018 https://dx.doi.org/10.6084/m9.figshare.7108760 https://tandf.figshare.com/articles/The_geochemistry_and_petrogenesis_of_Carnley_Volcano_Auckland_Islands_SW_Pacific/7108760 unknown Taylor & Francis https://dx.doi.org/10.1080/00288306.2018.1505642 Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 CC-BY-NC-ND Physiology FOS Biological sciences Biotechnology Evolutionary Biology Geology FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences Marine Biology Inorganic Chemistry 110309 Infectious Diseases FOS Health sciences dataset Dataset 2018 ftdatacite https://doi.org/10.6084/m9.figshare.7108760 https://doi.org/10.1080/00288306.2018.1505642 2021-11-05T12:55:41Z Intraplate volcanism across Zealandia, South Eastern Australia, the Ross Sea Embayment and Marie Byrd Land in Antarctica define a magmatic province characterised by basalts with elevated 206 Pb/ 204 Pb (18.9–22.5), 87 Sr/ 86 Sr = ∼0.7035, Light Rare Earth enrichment [(Ce/Yb) n > 10], and convex-up mantle normalised incompatible multi-element patterns, peaking at Nb-Ta, with negative K and Pb anomalies. Trace element abundances and ratios (e.g. Zr/Nb, Y/Zr) resemble Ocean Island Basalts (OIB), distinct from Mid-Ocean Ridge Basalt (MORB), suggesting derivation from OIB-like reservoirs. Our preferred scenario envisages partial melting across the garnet-spinel stability fields involving asthenospheric and lithospheric mantle components. Melts accumulate in a column where the deep (asthenospheric) source is PM and the shallower source a melange of PM and subcontinental lithospheric mantle (DMM+1) enriched by carbonatite. Evolution of primary and near-primary magmas is controlled by olivine + clinopyroxene fractionation. Trachybasalts, trachytes and rhyolites show isotopic evidence for interaction with continental crust. Dataset Antarc* Antarctica Auckland Islands Marie Byrd Land Ross Sea Ocean Island DataCite Metadata Store (German National Library of Science and Technology) Byrd Marie Byrd Land ENVELOPE(-130.000,-130.000,-78.000,-78.000) Pacific Ross Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Physiology FOS Biological sciences Biotechnology Evolutionary Biology Geology FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences Marine Biology Inorganic Chemistry 110309 Infectious Diseases FOS Health sciences |
spellingShingle |
Physiology FOS Biological sciences Biotechnology Evolutionary Biology Geology FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences Marine Biology Inorganic Chemistry 110309 Infectious Diseases FOS Health sciences Gamble, John A. Adams, Chris J. Morris, Paul A. Wysoczanski, Richard J. Handler, Monica Timm, Christian The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
topic_facet |
Physiology FOS Biological sciences Biotechnology Evolutionary Biology Geology FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Ecology 20199 Astronomical and Space Sciences not elsewhere classified FOS Physical sciences Marine Biology Inorganic Chemistry 110309 Infectious Diseases FOS Health sciences |
description |
Intraplate volcanism across Zealandia, South Eastern Australia, the Ross Sea Embayment and Marie Byrd Land in Antarctica define a magmatic province characterised by basalts with elevated 206 Pb/ 204 Pb (18.9–22.5), 87 Sr/ 86 Sr = ∼0.7035, Light Rare Earth enrichment [(Ce/Yb) n > 10], and convex-up mantle normalised incompatible multi-element patterns, peaking at Nb-Ta, with negative K and Pb anomalies. Trace element abundances and ratios (e.g. Zr/Nb, Y/Zr) resemble Ocean Island Basalts (OIB), distinct from Mid-Ocean Ridge Basalt (MORB), suggesting derivation from OIB-like reservoirs. Our preferred scenario envisages partial melting across the garnet-spinel stability fields involving asthenospheric and lithospheric mantle components. Melts accumulate in a column where the deep (asthenospheric) source is PM and the shallower source a melange of PM and subcontinental lithospheric mantle (DMM+1) enriched by carbonatite. Evolution of primary and near-primary magmas is controlled by olivine + clinopyroxene fractionation. Trachybasalts, trachytes and rhyolites show isotopic evidence for interaction with continental crust. |
format |
Dataset |
author |
Gamble, John A. Adams, Chris J. Morris, Paul A. Wysoczanski, Richard J. Handler, Monica Timm, Christian |
author_facet |
Gamble, John A. Adams, Chris J. Morris, Paul A. Wysoczanski, Richard J. Handler, Monica Timm, Christian |
author_sort |
Gamble, John A. |
title |
The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
title_short |
The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
title_full |
The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
title_fullStr |
The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
title_full_unstemmed |
The geochemistry and petrogenesis of Carnley Volcano, Auckland Islands, SW Pacific |
title_sort |
geochemistry and petrogenesis of carnley volcano, auckland islands, sw pacific |
publisher |
Taylor & Francis |
publishDate |
2018 |
url |
https://dx.doi.org/10.6084/m9.figshare.7108760 https://tandf.figshare.com/articles/The_geochemistry_and_petrogenesis_of_Carnley_Volcano_Auckland_Islands_SW_Pacific/7108760 |
long_lat |
ENVELOPE(-130.000,-130.000,-78.000,-78.000) |
geographic |
Byrd Marie Byrd Land Pacific Ross Sea |
geographic_facet |
Byrd Marie Byrd Land Pacific Ross Sea |
genre |
Antarc* Antarctica Auckland Islands Marie Byrd Land Ross Sea Ocean Island |
genre_facet |
Antarc* Antarctica Auckland Islands Marie Byrd Land Ross Sea Ocean Island |
op_relation |
https://dx.doi.org/10.1080/00288306.2018.1505642 |
op_rights |
Creative Commons Attribution Non Commercial No Derivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode cc-by-nc-nd-4.0 |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.6084/m9.figshare.7108760 https://doi.org/10.1080/00288306.2018.1505642 |
_version_ |
1766057310052941824 |