Behaviour of niobium during early Earth's differentiation: insights from its local structure and oxidation state in silicate melts at high pressure

Autor: Z. Konopkova, R. Torchio, Hanns-Peter Liermann, C. de Grouchy, Konstantin Glazyrin, Innokenty Kantor, Olivier Mathon, Chrystèle Sanloup, B. Cochain, Tetsuo Irifune

Publikováno v: Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2018, Frontiers of High Pressure Physics, 30 (8), ⟨10.1088/1361-648X/aaa73e⟩
Journal of physics / Condensed matter 30(8), 084004-(2018). doi:10.1088/1361-648X/aaa73e
Journal of Physics: Condensed Matter, 2018, Frontiers of High Pressure Physics, 30 (8), ⟨10.1088/1361-648X/aaa73e⟩

International audience; Niobium (Nb) is one of the key trace elements used to understand Earth's formation and differentiation, and is remarkable for its deficiency relative to tantalum in terrestrial rocks compared to the building chondritic blocks.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f1b3979c36a2f5c3abe360aa7649e0
https://hal.sorbonne-universite.fr/hal-01867281/document

Structural evolution of Ni environment in lithium, magnesium and zinc aluminosilicate glasses and glass-ceramics

Autor: Olga Dymshits, Aymeric Dugué, Alexander A. Zhilin, Stéphanie Belin, Gérald Lelong, Laurent Cormier, B. Cochain

Publikováno v: Journal of Non-Crystalline Solids. 413:24-33

Three glasses in the Li2O–Al2O3–SiO2 (LAS), MgO–Al2O3–SiO2 (MAS) and ZnO–Al2O3–SiO2 (ZAS) systems were investigated to obtain spinel-based transparent glass-ceramics doped with TiO2 to induce internal nucleation and with NiO to provide op

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96a1b122ce553334902bfc367cdfa0db
https://doi.org/10.1016/j.jnoncrysol.2015.01.011

Lutetium incorporation in magmas at depth: Changes in melt local environment and the influence on partitioning behaviour

Autor: Chrystele Sanloup, Céline Crépisson, Charlotte J.L. de Grouchy, Yoshio Kono, James W E Drewitt, B. Cochain

Publikováno v: Earth and Planetary Science Letters
Earth and Planetary Science Letters, 2017, 464, pp.155-165. ⟨10.1016/j.epsl.2017.02.017⟩
Earth and planetary science letters 464, 155-165 (2017). doi:10.1016/j.epsl.2017.02.017
Earth and Planetary Science Letters, Elsevier, 2017, 464, pp.155-165. ⟨10.1016/j.epsl.2017.02.017⟩
de Grouchy, C J L, Sanloup, C, Cochain, B, Drewitt, J W E, Kono, Y & Crépisson, C 2017, ' Lutetium incorporation in magmas at depth : changes in melt local environment and the influence on partitioning behaviour ', Earth and Planetary Science Letters, vol. 464, pp. 155-165 . https://doi.org/10.1016/j.epsl.2017.02.017

The structure of two Lu doped (4000 ppm) model end member silicate liquids, a highly polymerised haplogranite (Si–Al–Na–K–O) and a less polymerised anorthite–diopside (Si–Al–Mg–Ca–O), have been studied up to 8 GPa using in situ x-ra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4f2e83610e424c8b6013ccc57b2b98e
https://hal.sorbonne-universite.fr/hal-01489470/document

In situ characterization of liquid network structures at high pressure and temperature using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press

Autor: Angelika Dorothea Rosa, Max Wilke, J. Pohlenz, Yoshio Kono, C. de Grouchy, B. Cochain, Olivier Mathon, S. Pasternak, Tetsuo Irifune

Publikováno v: High Pressure Research
High Pressure Research, 2016, 36, pp.332-347. ⟨10.1080/08957959.2016.1199693⟩

International audience; We review recent progress in studying structural properties of liquids using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press at third-generation synchrotron facilities. This experimental method allows for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::893f6ef1f4fc1e84b39a43b85e1321f8
https://insu.hal.science/insu-03596365

In situ local environment and partitioning of Ni2+ ions during crystallization of an oxyfluoride glass

Autor: A. Novikova, B. Cochain, Laurent Cormier, Stéphanie Belin, Gérald Lelong, Xianghua Zhang

Publikováno v: Journal of Non-Crystalline Solids
Journal of Non-Crystalline Solids, 2015, 408, pp.7-12. ⟨10.1016/j.jnoncrysol.2014.09.051⟩
Journal of Non-Crystalline Solids, Elsevier, 2015, 408, pp.7-12. ⟨10.1016/j.jnoncrysol.2014.09.051⟩

International audience; The local structure of Ni 2+ ions during crystallization of an oxyfluoride aluminosilicate glass was examined by high temperature in situ spectroscopic experiments coupled with in situ X-ray diffraction to characterize the dif

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8c582812b05db4c239b86c4e3bcf1c0
https://univ-rennes.hal.science/hal-01085301