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Contribution of X-ray Spectroscopy to Mineralogy: Exploring Platinum Using High-Energy Resolution Fluorescence Detection X-ray Absorption Spectroscopy, HERFD-XAS

Autor: Bazarkina, E., Laskar, C., Kokh, M. A., Hazemann, J.-L., Foulon, S., Leynaud, O., Desmaele, E., Pokrovski, G. S.

Publikováno v: Minerals 12(2022), 1602

Samples analyzed here included Pt0 (TR), PtIIS (HR), PtIVS2 (TR), K2PtIICl4 (HR+TR), K2PtIVCl6 (HR+TR), PtIVO2 (HR+TR), C6H12N2O4PtII (HR+TR), and aqueous solutions of K2PtIICl4 and H2PtIVCl6 (NR+TR), as well as (NH4)2PtIV(S5)3 (HR+TR). XANES spectra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______4577::c58ea09d15d691314b395a071e5b2a6a
https://www.hzdr.de/publications/Publ-35608-1

Platinum Speciation and Transport in Sulfur-Rich Hydrothermal Fluids

Autor: Clément Laskar, Pokrovski, G. S., Kokh, M., Hazemann, J. L., Bazarkina, E. F., Desmaele, E., Vuilleumier, R.

Publikováno v: Virtual Goldschmidt 2020 Conference, Hawaii, USA, June 2020 (communication orale)
Virtual Goldschmidt 2020 Conference, Hawaii, USA, June 2020 (communication orale), Jun 2020, Honolulu, United States
HAL

International audience; Understanding PGE deposit formation requires knowledge of the chemical state and mobility of platinum group elements (PGE) in magmatic-hydrothermal fluids. Yet, existing data on aqueous chloride, sulfate, and hydroxide complex

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af1b5448ea4a9b8df48f55b31d5a207e
https://doi.org/10.46427/gold2020.1420

Gold speciation and transport in geological fluids: insights from experiments and physical-chemical modelling

Autor: Pokrovski, G. S., Akinfiev, N. N., Borisova, A. Y., Zotov, A. V., Kouzmanov, Kalin

Publikováno v: Geological Society-Special Publications, vol. 402 pp. 9-70

This contribution provides an overview of available experimental, thermodynamic, and molecular data on Au aqueous speciation, solubility, and partitioning in major types of geological fluids in the Earth's crust, from low-temperature aqueous solution

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______1400::b9fb528b91312f95cde1eb519caef7c8
https://archive-ouverte.unige.ch/unige:76237