Zobrazeno 1 - 10 of 22 pro vyhledávání: '"Celia Dalou"'
1
Akademický článek
Review of experimental and analytical techniques to determine H, C, N, and S solubility and metal–silicate partitioning during planetary differentiation
Autor: Celia Dalou, Terry-Ann Suer, Laurent Tissandier, Weronika L. Ofierska, Alice Girani, Paolo A. Sossi
Publikováno v: Progress in Earth and Planetary Science, Vol 11, Iss 1, Pp 1-33 (2024)
Abstract During their formation, terrestrial planets underwent a magma ocean phase during which their metallic cores segregated from their silicate mantles and their early atmospheres formed. These planetary formation processes resulted in a redistri
Externí odkaz: https://doaj.org/article/996e84ff58514e3d95a6b50b0edacef5
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2
Akademický článek
The distribution of volatile elements during rocky planet formation
Autor: Terry-Ann Suer, Colin Jackson, Damanveer S. Grewal, Celia Dalou, Tim Lichtenberg
Publikováno v: Frontiers in Earth Science, Vol 11 (2023)
Core segregation and atmosphere formation are two of the major processes that redistribute the volatile elements—hydrogen (H), carbon (C), nitrogen (N), and sulfur (S)—in and around rocky planets during their formation. The volatile elements by d
Externí odkaz: https://doaj.org/article/46be8b33df4042d3b20bcfd2438542ec
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3
Akademický článek
Redox controls on H and N speciation and intermolecular isotopic fractionations in aqueous fluids at high pressure and high temperature: Insights from in-situ experiments
Autor: Celia Dalou, Charles Le Losq, Evelyn Füri, Marie-Camille Caumon
Publikováno v: Frontiers in Earth Science, Vol 10 (2022)
Aqueous magmatic fluids are essential to the transport of hydrogen (H), carbon (C), and nitrogen (N) from the mantle to the surface, during which changes in pressure, temperature, and redox conditions affect the chemical speciation and intermolecular
Externí odkaz: https://doaj.org/article/f587a14d56bd461eb2a2fabded0b4d18
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4
Nitrogen diffusion in silicate melts under reducing conditions
Autor: Yves Marrocchi, Celia Dalou, Julien Boulliung, Laurent Tissandier, Evelyn Füri
Publikováno v: American Mineralogist
American Mineralogist, Mineralogical Society of America, 2021, 106 (4), pp.662-666. ⟨10.2138/am-2021-7799ccbyncnd⟩
The American Mineralogist
The American Mineralogist, 2021, 106 (4), pp.662-666. ⟨10.2138/am-2021-7799ccbyncnd⟩
The behavior of nitrogen during magmatic degassing and the potential kinetic fractionation between N and other volatile species (H, C, O, noble gases) are poorly known due to the paucity of N diffusion data in silicate melts. To better constrain N mo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7fc28cf3b109921e44dfe7542ad0045
https://doi.org/10.2138/am-2021-7799ccbyncnd
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5
Raman spectroscopy study of C-O-H-N speciation in reduced basaltic glasses: Implications for reduced planetary mantles
Autor: Celia Dalou, Marc M. Hirschmann, Charles Le Losq, Steven D. Jacobsen
Publikováno v: Geochimica et Cosmochimica Acta. 265:32-47
To better understand the solution of volatile species in a reduced magma ocean, we identify via Raman spectroscopy the nature of C-O-H-N volatile species dissolved in a series of reduced basaltic glasses. The oxygen fugacity (ƒO2) during synthesis v
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::414aa9dda852e87ad1a38ca8e27bfbfb
https://doi.org/10.1016/j.gca.2019.08.029
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6
In-situ measurements of magmatic volatile elements, F, S, and Cl, by electron microprobe, secondary ion mass spectrometry, and heavy ion elastic recoil detection analysis
Autor: Celia Dalou, Jean-Luc Devidal, Marion Le Voyer, Max Döbeli, Kenneth T. Koga, Nobumichi Shimizu, Estelle Rose-Koga
Publikováno v: American Mineralogist
American Mineralogist, Mineralogical Society of America, 2020, 105 (5), pp.616-626. ⟨10.2138/am-2020-7221⟩
The American Mineralogist
The American Mineralogist, 2020, 105 (5), pp.616-626. ⟨10.2138/am-2020-7221⟩
Electron probe and ion probe are the two most used instruments for in situ analysis of halogens in geological materials. The comparison of these two methods on widely distributed glass standards (example: MPI-DING glasses, Jochum et al., G-cubed, 200
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee907565613f85cc6f4ef6cb8c3330a5
https://hal.uca.fr/hal-02930778
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7
Oxygen fugacity and melt composition controls on nitrogen solubility in silicate melts
Autor: Julien Boulliung, Evelyn Füri, Yves Marrocchi, Laurent Tissandier, Celia Dalou, Laurent Zimmermann
Publikováno v: Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, Elsevier, 2020, 284, pp.120-133. ⟨10.1016/j.gca.2020.06.020⟩
Geochimica et Cosmochimica Acta, 2020, 284, pp.120-133. ⟨10.1016/j.gca.2020.06.020⟩
International audience; Knowledge of N solubility in silicate melts is key for understanding the origin of terrestrial N and the distribution and exchanges of N between the atmosphere, the silicate magma ocean, and the core forming metal. To place co
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f520cb9de013c9888611216f462c7eee
https://hal.archives-ouvertes.fr/hal-02919137
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8
In situ study at high pressure and temperature of the environment of water in hydrous Na and Ca aluminosilicate melts and coexisting aqueous fluids
Autor: Celia Dalou, Charles Le Losq, Bjorn O. Mysen
Publikováno v: Journal of Geophysical Research: Solid Earth. 122:4888-4899
The bonding and speciation of water dissolved in Na silicate and Na and Ca aluminosilicate melts were inferred from in situ Raman spectroscopy of the samples, in hydrothermal diamond anvil cells, while at crustal temperature and pressure conditions.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d9e74add3fdd6397645be2a4a86e22f1
https://doi.org/10.1002/2017jb014262
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9
Nitrogen and carbon fractionation during core–mantle differentiation at shallow depth
Autor: Celia Dalou, Jed L. Mosenfelder, Marc M. Hirschmann, Lora S. Armstrong, Anette von der Handt
Publikováno v: Earth and Planetary Science Letters. 458:141-151
One of the most remarkable observations regarding volatile elements in the solar system is the depletion of N in the bulk silicate Earth (BSE) relative to chondrites, leading to a particularly high and non-chondritic C:N ratio. The N depletion may re
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e4450840d9b3c667361cac5011774e76
https://doi.org/10.1016/j.epsl.2016.10.026
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10
Nitrogen incorporation in silicates and metals: Results from SIMS, EPMA, FTIR, and laser-extraction mass spectrometry
Autor: Celia Dalou, Jed L. Mosenfelder, George R. Rossman, Marc M. Hirschmann, Evelyn Füri, Richard L. Hervig, Anette von der Handt
Publikováno v: American Mineralogist
American Mineralogist, Mineralogical Society of America, 2019, 104 (1), pp.31-46. ⟨10.2138/am-2019-6533⟩
A quantitative understanding of nitrogen incorporation in Earth materials is important for constraining volatile evolution in planetary bodies. We used a combination of chemical (SIMS, EPMA, and laser-extraction mass spectrometry) and spectroscopic (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6baec05b460a1240e13bd3558212a709
https://hal.archives-ouvertes.fr/hal-02122907
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