Diachronous Redistribution of Hf and Nd Isotopes at the Crystal Scale—Consequences for the Isotopic Evolution of a Poly-Metamorphic Crustal Terrane

Autor: Adrien Vezinet, Emilie Thomassot, Yan Luo, Chiranjeeb Sarkar, D. Graham Pearson

Publikováno v: Geosciences, Vol 12, Iss 1, p 36 (2022)

In metamorphic rocks, mineral species react over a range of pressure–temperature conditions that do not necessarily overlap. Mineral equilibration can occur at varied points along the metamorphic pressure–temperature (PT) path, and thus at differ

Externí odkaz: https://doaj.org/article/72c524462ece4bf9ae492a367e2f8154

Geochemical evidence for carbon and chlorine enrichments in the mantle source of kimberlites (Udachnaya pipe, Siberian craton)

Autor: Elisabeth d'Eyrames, Alexander V. Golovin, Yumi Kitayama, Emilie Thomassot, Αlbert Galy, Andrey V. Korsakov

Publikováno v: Geochimica et Cosmochimica Acta. 315:295-316

Deep, carbonate-rich melts are key constituents of kimberlites and are crucial for understanding the cycle of volatile elements in the mantle. On the Siberian craton, the Udachnaya-East kimberlite hosts extremely well-preserved nodules composed of ch

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0cc7a8f51330d8c9664315d808d50e13
https://doi.org/10.1016/j.gca.2021.09.021

First direct insight into the local environment and dynamics of water molecules in the whewellite mineral phase: mechanochemical isotopic enrichment and high-resolution 17O and 2H NMR analyses

Autor: Ieva Goldberga, Nicolas Patris, Chia-Hsin Chen, Emilie Thomassot, Julien Trébosc, Ivan Hung, Zhehong Gan, Dorothée Berthomieu, Thomas-Xavier Métro, Christian Bonhomme, Christel Gervais, Danielle Laurencin

Calcium oxalate minerals of general formula CaC2O4.xH2O are widely present in nature and usually associated with pathological calcifications, constituting up to 70 – 80% of the mineral component of renal calculi. The monohydrate phase (CaC2O4.H2O,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e863a2de5d7dc33336b3b4f8b3bcfacb
https://doi.org/10.26434/chemrxiv-2022-dghph-v2

Multiple sulfur isotopes signature of Thermochemical Sulfate Reduction (TSR): Insights from Alpine Triassic evaporites

Autor: Guillaume Barré, Laurent Truche, Pierre Cartigny, Raymond Michels, Emilie Thomassot, Pierre Strzerzynski

Publikováno v: Earth and Planetary Science Letters
Earth and Planetary Science Letters, Elsevier, 2021, 576, pp.117231. ⟨10.1016/j.epsl.2021.117231⟩

The sulfur cycle is driven by redox processes, among which sulfate reduction is of primary importance. Sulfate is reduced to sulfide either abiotically by Thermochemical Sulfate Reduction (TSR) or biotically by Microbial Sulfate Reduction (MSR). Alth

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e2df65eaaf18ff37ad105bf0b164f11
https://hal.archives-ouvertes.fr/hal-03396230/document

Labeling and probing the silica surface using mechanochemistry and 17O NMR spectroscopy

Autor: Philippe Gaveau, Dinu Iuga, Emilie Thomassot, Julien Trébosc, Danielle Laurencin, Mark E. Smith, Nicolas Fabregue, Frederic Mentink-Vigier, Ieva Goldberga, Thomas-Xavier Métro, Kuizhi Chen, Zhehong Gan, Chia-Hsin Chen, Bruno Alonso

Publikováno v: Chemistry – A European Journal
Chemistry-A European Journal
Chemistry-A European Journal, Wiley-VCH Verlag, 2021, 27 (49), pp.12574-12588. ⟨10.1002/chem.202101421⟩
Chemistry (Weinheim an Der Bergstrasse, Germany)
Chemistry-A European Journal, 2021, 27 (49), pp.12574-12588. ⟨10.1002/chem.202101421⟩

In recent years, there has been increasing interest in developing cost‐efficient, fast, and user‐friendly 17O enrichment protocols to help to understand the structure and reactivity of materials by using 17O NMR spectroscopy. Here, we show for th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::783aeda8f21d5252381531b46794afc2
https://eprints.soton.ac.uk/450564/