An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces
peer reviewed Abstract The application of the olivine–spinel aluminum exchange thermometer to natural samples is limited by the restricted experimental data set on which it was calibrated. Here, we present a new data set of 46 high-temperature crystallization experiments and 21 reanalyzed published...
Published in: | Journal of Petrology |
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Language: | English |
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Oxford University Press (OUP)
2023
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Online Access: | https://orbi.uliege.be/handle/2268/308637 https://orbi.uliege.be/bitstream/2268/308637/1/Zhang%20et%20al%202023%20JPet%20olivine-spinel.pdf https://doi.org/10.1093/petrology/egad077 |
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ftorbi:oai:orbi.ulg.ac.be:2268/308637 2024-04-21T08:06:00+00:00 An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces Zhang, Yishen Namur, Olivier Li, Weiran Shorttle, Oliver Gazel, Esteban Jennings, Eleanor Thy, Peter Grove, Timothy L Charlier, Bernard 2023-10-11 https://orbi.uliege.be/handle/2268/308637 https://orbi.uliege.be/bitstream/2268/308637/1/Zhang%20et%20al%202023%20JPet%20olivine-spinel.pdf https://doi.org/10.1093/petrology/egad077 en eng Oxford University Press (OUP) https://academic.oup.com/petrology/advance-article-pdf/doi/10.1093/petrology/egad077/52012334/egad077.pdf urn:issn:0022-3530 urn:issn:1460-2415 https://orbi.uliege.be/handle/2268/308637 info:hdl:2268/308637 https://orbi.uliege.be/bitstream/2268/308637/1/Zhang%20et%20al%202023%20JPet%20olivine-spinel.pdf doi:10.1093/petrology/egad077 scopus-id:2-s2.0-85177494946 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Journal of Petrology, 64 (11) (2023-10-11) Geochemistry and Petrology Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2023 ftorbi https://doi.org/10.1093/petrology/egad077 2024-03-27T14:59:23Z peer reviewed Abstract The application of the olivine–spinel aluminum exchange thermometer to natural samples is limited by the restricted experimental data set on which it was calibrated. Here, we present a new data set of 46 high-temperature crystallization experiments and 21 reanalyzed published experiments, which we used to extend the calibration to higher and lower temperatures. The final calibration data set spans a range of conditions relevant to crustal and upper mantle processes: 1174–1606°C, 0.1–1350 MPa, QFM − 2.5 to QFM + 7.2 (oxygen fugacity, fO2, reported in log units relative to the quartz–fayalite–magnetite buffer, QFM), and 0–7.4 wt % H2Omelt. We propose three new models. The first is thermodynamically self-consistent, based on spinel Fe, Mg, Al, and Cr compositions and Al exchange between olivine and spinel. The second and third are empirical models that consider fewer elemental exchanges: the second uses only Al exchange and spinel compositions, whereas the third considers olivine–spinel Al and Cr exchange. All models include the modest effect of pressure on olivine-spinel equilibrium chemistry, whereas fO2 and water content have negligible effects. In general, as fewer elements are considered in the olivine–spinel exchange, the fit to experimental data worsens. Conversely, the associated decrease in model complexity improves their robustness against systematic errors when applied to natural crystal pairs: the thermodynamic model may underestimate crystallization temperatures in natural samples due to spinel subsolidus re-equilibration, whereas the empirical models (independent of Fe and Mg in spinel) are less sensitive to re-equilibration but yield temperatures with larger uncertainties. We applied a statistical test to select the most appropriate model for application to natural samples. When applied to lavas from mid-ocean ridges, Iceland, Skye, Emeishan, Etendeka, and Tortugal, our new temperature estimates are 30–100°C lower than previously proposed. The lower temperature estimates ... Article in Journal/Newspaper Iceland University of Liège: ORBi (Open Repository and Bibliography) Journal of Petrology 64 11 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Geochemistry and Petrology Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Geochemistry and Petrology Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Zhang, Yishen Namur, Olivier Li, Weiran Shorttle, Oliver Gazel, Esteban Jennings, Eleanor Thy, Peter Grove, Timothy L Charlier, Bernard An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
topic_facet |
Geochemistry and Petrology Geophysics Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed Abstract The application of the olivine–spinel aluminum exchange thermometer to natural samples is limited by the restricted experimental data set on which it was calibrated. Here, we present a new data set of 46 high-temperature crystallization experiments and 21 reanalyzed published experiments, which we used to extend the calibration to higher and lower temperatures. The final calibration data set spans a range of conditions relevant to crustal and upper mantle processes: 1174–1606°C, 0.1–1350 MPa, QFM − 2.5 to QFM + 7.2 (oxygen fugacity, fO2, reported in log units relative to the quartz–fayalite–magnetite buffer, QFM), and 0–7.4 wt % H2Omelt. We propose three new models. The first is thermodynamically self-consistent, based on spinel Fe, Mg, Al, and Cr compositions and Al exchange between olivine and spinel. The second and third are empirical models that consider fewer elemental exchanges: the second uses only Al exchange and spinel compositions, whereas the third considers olivine–spinel Al and Cr exchange. All models include the modest effect of pressure on olivine-spinel equilibrium chemistry, whereas fO2 and water content have negligible effects. In general, as fewer elements are considered in the olivine–spinel exchange, the fit to experimental data worsens. Conversely, the associated decrease in model complexity improves their robustness against systematic errors when applied to natural crystal pairs: the thermodynamic model may underestimate crystallization temperatures in natural samples due to spinel subsolidus re-equilibration, whereas the empirical models (independent of Fe and Mg in spinel) are less sensitive to re-equilibration but yield temperatures with larger uncertainties. We applied a statistical test to select the most appropriate model for application to natural samples. When applied to lavas from mid-ocean ridges, Iceland, Skye, Emeishan, Etendeka, and Tortugal, our new temperature estimates are 30–100°C lower than previously proposed. The lower temperature estimates ... |
format |
Article in Journal/Newspaper |
author |
Zhang, Yishen Namur, Olivier Li, Weiran Shorttle, Oliver Gazel, Esteban Jennings, Eleanor Thy, Peter Grove, Timothy L Charlier, Bernard |
author_facet |
Zhang, Yishen Namur, Olivier Li, Weiran Shorttle, Oliver Gazel, Esteban Jennings, Eleanor Thy, Peter Grove, Timothy L Charlier, Bernard |
author_sort |
Zhang, Yishen |
title |
An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
title_short |
An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
title_full |
An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
title_fullStr |
An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
title_full_unstemmed |
An Extended Calibration of the Olivine–Spinel Aluminum Exchange Thermometer: Application to the Melting Conditions and Mantle Lithologies of Large Igneous Provinces |
title_sort |
extended calibration of the olivine–spinel aluminum exchange thermometer: application to the melting conditions and mantle lithologies of large igneous provinces |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
https://orbi.uliege.be/handle/2268/308637 https://orbi.uliege.be/bitstream/2268/308637/1/Zhang%20et%20al%202023%20JPet%20olivine-spinel.pdf https://doi.org/10.1093/petrology/egad077 |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Journal of Petrology, 64 (11) (2023-10-11) |
op_relation |
https://academic.oup.com/petrology/advance-article-pdf/doi/10.1093/petrology/egad077/52012334/egad077.pdf urn:issn:0022-3530 urn:issn:1460-2415 https://orbi.uliege.be/handle/2268/308637 info:hdl:2268/308637 https://orbi.uliege.be/bitstream/2268/308637/1/Zhang%20et%20al%202023%20JPet%20olivine-spinel.pdf doi:10.1093/petrology/egad077 scopus-id:2-s2.0-85177494946 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/petrology/egad077 |
container_title |
Journal of Petrology |
container_volume |
64 |
container_issue |
11 |
_version_ |
1796945327468576768 |