Editorial: Volcanic Islands—A Challenge for Volcanology

Autor: Alessandro Bonforte, Joan Martí, Antonio Paonita, Michel Pichavant

Publikováno v: Frontiers in Earth Science, Vol 10 (2022)

Externí odkaz: https://doaj.org/article/20ac5269f05b4fa08e60d78c7c880a5f

Experimental Crystallization of the Beauvoir Granite as a Model for the Evolution of Variscan Rare Metal Magmas

Autor: Michel Pichavant

Publikováno v: Journal of Petrology. 63

New experiments on the strongly peraluminous, Li-, P- and F-rich Beauvoir granite (Massif Central, France) provide a basis for understanding crystallization and chemical fractionation in Variscan rare metal magmas. Crystallization experiments were pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbe5a4e89eba8c36b34e2d71e1e14a30
https://doi.org/10.1093/petrology/egac120

Rare elements enrichment in crustal peraluminous magmas: insights from partial melting experiments

Autor: Arnaud Villaros, Julie Anne-Sophie Michaud, Michel Pichavant

Publikováno v: Contributions to Mineralogy and Petrology
Contributions to Mineralogy and Petrology, Springer Verlag, 2021, 176 (11), 33 p. ⟨10.1007/s00410-021-01855-9⟩

International audience; Experiments were conducted to explore the behavior of Li, Rb, Nb, Sn, Cs, Ta, W during crustal melting and test the anatectic origin of rare metal-bearing peraluminous granites such as rare metal granites (RMGs). The experimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::737df4f180f45e1e0e8fb1bcf3f4a5cc
https://hal-insu.archives-ouvertes.fr/insu-03431952

Experimental Constraints on the Crystallization of Silica Phases in Silicic Magmas

Autor: Rémi Champallier, Karine Devineau, J M Castro, Caroline Martel, Alexandra R. L. Kushnir, Guillaume Wille, V. O. Davydova, Michel Pichavant, I Di Carlo

Publikováno v: Journal of Petrology
Journal of Petrology, Oxford University Press (OUP), 2021, 62 (1), pp.egab004. ⟨10.1093/petrology/egab004⟩

Low-pressure silica polymorphs, e.g. quartz (Qtz), tridymite (Trd), and cristobalite (Crs), are common in silicic magmas, but the conditions of their formation are still unclear. The stability fields of these polymorphs have been determined in the Si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::204ebc8af14e5d1351dc23976680b6a5
https://hal-insu.archives-ouvertes.fr/insu-03178781/document

Age and genesis of the rare metals (Sn, Li, Nb-Ta, W) granite cupola of Montebras (Creuse, French Massif Central)

Autor: Michel Pichavant, Eric Marcoux, Benjamin Barré, Marc Poujol

Publikováno v: Bulletin de la Société Géologique de France
Bulletin de la Société Géologique de France, Société géologique de France, 2021, Special Issue Minéralisation périgranitiques, 192, pp.16. ⟨10.1051/bsgf/2020042⟩
BSGF-Earth Sciences Bulletin, Vol 192, p 16 (2021)
Bulletin de la Société Géologique de France, 2021, Special Issue Minéralisation périgranitiques, 192, pp.16. ⟨10.1051/bsgf/2020042⟩

International audience; The Montebras cupola is a small massif of granite with rare metals (Sn,W, Li, Nb-Ta) located north of the French Massif Central which emplaced during the upper Carboniferous in an olderhost rock, the Chanon granite (357.2 ± 2

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7332b68d9a674d629f1aefb4af5cf6cf
https://hal-insu.archives-ouvertes.fr/insu-03184611