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An arsenic-driven pump for invisible gold in hydrothermal systems

Publikováno v: Geochemical Perspectives Letters
Geochemical Perspectives Letters, 2021, 17, pp.39-44. ⟨10.7185/geochemlet.2112⟩
Geochemical Perspectives Letters, European Assoication of Geochemistry, 2021, 17, pp.39-44. ⟨10.7185/geochemlet.2112⟩

International audience; Pyrite (FeS 2), arsenopyrite (FeAsS) and löllingite (FeAs 2) are exceptional gold concentrators on Earth; yet the exact redox and structural state of this "invisible" gold and the forces driving its intake and release by thes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::310c881bdf94e15e31d3f8689078dac8
https://doi.org/10.7185/geochemlet.2112

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Interdiffusion in CMSX-4 Related Ni-Base Alloy System at a Supersolvus Temperature

Autor: Romain Saillard, Bettina Camin, Alexander Epishin, Sophie Gouy, Bernard Viguier, A. Chyrkin

Publikováno v: Defect and Diffusion Forum. 407:1-10

Interdiffusion in Ni-base superalloy CMSX-4 and alloys related to CMSX-4 was investigated at the temperature 1288 °C, which is 8 °C above the γ’-solvus temperature of this superalloy, 1280 °C. This temperature is of a special interest because i

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c80e0aabbdfdea49ef02cddd49089cb
https://doi.org/10.4028/www.scientific.net/ddf.407.1

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Akademický článek

Multiple Generations of Wolframite Mineralization in the Echassieres District (Massif Central, France)

Autor: Loïs Monnier, Stefano Salvi, Jérémie Melleton, Laurent Bailly, Didier Béziat, Philippe de Parseval, Sophie Gouy, Philippe Lach

Publikováno v: Minerals, Vol 9, Iss 10, p 637 (2019)

The Echassières district in central France contains complex rare-element ore deposits, whose formation is related to exotic igneous events and several hydrothermal episodes that are not entirely understood to date. Tungsten mineralization consists o

Externí odkaz: https://doaj.org/article/2d244808fe3c4f34a30c6b7f4d839c16

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Origin of Antecrysts in Igneous Rocks from the Salavat Range (NW Iran): an Explanation for the Geochemical Signature of Potassic Alkaline Rocks

Autor: Michel Grégoire, Mathieu Benoit, Georges Ceuleneer, Azam Soltanmohammadi, L. Paul Bédard, Sophie Gouy, Michel Rabinowicz

Publikováno v: Journal of Petrology
Journal of Petrology, 2021, 62 (7), ⟨10.1093/petrology/egab031⟩
Journal of Petrology, Oxford University Press (OUP), 2021, 62 (7), ⟨10.1093/petrology/egab031⟩

Abundant silica-undersaturated potassic lavas are found in the centre of the Turkish–Iranian plateau (NW Iran) as flows, pillows and dykes. They display abundant zoned clinopyroxene macrocrysts and xenoliths of igneous cumulates. We determined four

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f052c881124b5fcd178d8c26c21d7175
https://hal.science/hal-03359394/document

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Quantification of major and trace elements in fluid inclusions and gas bubbles by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with no internal standard: a new method

Autor: German Velasquez, Anastassia Y. Borisova, Guillaume Estrade, Aurélia Colin, Stefano Salvi, Sophie Gouy

Publikováno v: European Journal of Mineralogy
European Journal of Mineralogy, 2021, 33, pp.305-314. ⟨10.5194/ejm-33-305-2021⟩
European Journal of Mineralogy, Copernicus, 2021, 33, pp.305-314. ⟨10.5194/ejm-33-305-2021⟩
European Journal of Mineralogy, Vol 33, Pp 305-314 (2021)

Recent advances in laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) open new perspectives for quantification of trace metals and metalloids in mineral-hosted fluid inclusions and glass-hosted gas bubbles. This work is devoted t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a1003fb2ff9f8ddd1f2af1d0194c9ea
https://hal.science/hal-03367765

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Mineralogical and geochemical features of the Allan Hills tephra, South Victoria Land: Implications for mid-Pleistocene volcanic activity in Antarctica

Autor: Anastassia Y. Borisova, Klaus Peter Jochum, Sophie Gouy

Publikováno v: Polar Science
Polar Science, 2020, 23, ⟨10.1016/j.polar.2020.100505⟩
Polar Science, Elsevier, 2020, 23, ⟨10.1016/j.polar.2020.100505⟩

International audience; More than 100 volcanoes have been discovered in Antarctica, however, the sources of many Antarctic tephras are not yet constrained. In this study, four tephra samples recovered from the environment of Site 27 on an area of blu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed93d8a2b7f6010b50fbb36e3e4961c6
https://hal.science/hal-02995769/document

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Geochemical fingerprints of brannerite (UTi 2 O 6 ): an integrated study

Autor: Marion Turuani, Yann Batonneau, Daniel Beaufort, Philippe Goncalves, Fabien Baron, Maurice Pagel, Adel Mesbah, Stéphanie Reynaud, Anne-Magali Seydoux-Guillaume, Nicolas Dacheux, Virginie Chapon, Julien Mercadier, Julie Machault, Stephanie Szenknect, Sophie Gouy, Flavien Choulet, Aurélien Eglinger

Publikováno v: Mineralogical Magazine
Mineralogical Magazine, Mineralogical Society, 2020, pp.1-22. ⟨10.1180/mgm.2020.7⟩
Mineralogical Magazine, 2020, 84 (2), pp.313-334. ⟨10.1180/mgm.2020.7⟩
Mineralogical Magazine, Mineralogical Society, 2020, 84 (2), pp.313-334. ⟨10.1180/mgm.2020.7⟩

Brannerite (UTi2O6) is among the major uranium-bearing minerals found in ore deposits, however as it has been long considered as a refractory mineral for leaching it is currently disregarded in ore deposits. Brannerite is found in a variety of geolog

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed22c0f51e10e7a9f606b7b2269ed5e8
https://hal.archives-ouvertes.fr/hal-02499642

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The nature and partitioning of invisible gold in the pyrite-fluid system

Autor: Céline Escoda, Thierry Aigouy, Gleb S. Pokrovski, Denis Testemale, Michel Thibaut, Philippe de Parseval, Elena F. Bazarkina, Jean-Louis Hazemann, Marie-Christine Boiron, Sophie Gouy, Maria A. Kokh, Marc Blanchard, Olivier Proux

Publikováno v: Ore Geology Reviews
Ore Geology Reviews, 2019, 109, pp.545-563. ⟨10.1016/j.oregeorev.2019.04.024⟩
Ore Geology Reviews, Elsevier, 2019, 109, pp.545-563. ⟨10.1016/j.oregeorev.2019.04.024⟩

International audience; The most characteristic feature of hydrothermal deposits of gold is its intimate association with pyrite. Microscopically visible gold occurs in pyrite ore as metal particles of >0.1 µm in size, together with so called “inv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65c0111208961960fd8e5d39daa9e800
https://hal.science/hal-02175624

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