First report of an Ediacarian basement in the Western Alps: the Serre Chevalier crystalline unit (Briançonnais domain, France)

Open Access

Issue		BSGF - Earth Sci. Bull. Volume 194, 2023


Article Number		16
Number of page(s)		16
DOI		https://doi.org/10.1051/bsgf/2023011
Published online		20 December 2023

Ballèvre M, Manzotti P, Dal Piaz GV. 2018. Pre-Alpine (Variscan) inheritance: a key for the location of the future Valaisan Basin (Western Alps). Tectonics 37:789–817. https://doi.org/10.1002/2017TC004633. [Google Scholar]
Ballèvre M, Camonin A, Manzotti P, Poujol M. 2020. A step towards unraveling the paleogeographic attribution of pre‑Mesozoic basement complexes in the Western Alps based on U-Pb geochronology of Permian magmatism. Swiss J Geosci 113: 12. https://doi.org/10.1186/s00015-020- 00367-1 [Google Scholar]
Barféty J-C., Pêcher A, with the collaboration of: Bambrier A, Demeulemeester P, Fourneaux J-C., Poulain P-A.,Vernet J, Vivier G. 1992. Notice explicative de la feuille Saint-Christophe-en-Oisans à 1/50 000, Orléans : BRGM, 64 p. [Google Scholar]
Barféty JC, Tricart P, Jeudy de Grissac C. 1992. La Quatrième écaille près de Briançon (Alpes françaises) : un olistostrome précurseur de l’orogenèse pennique éocène. CR Acad Sci 314 (1): 71–76. [Google Scholar]
Barféty JC, Lemoine M, Mercier D, Polino R, Nievergelt P, Bertrand J et al., 1996. Carte géol. France (1/50000), feuille Briançon (823). Orléans : BRGM. Notice explicative par J.C. Barféty, M. Lemoine, P.C. de Graciansky, P. Tricart, D. Mercier et coll, 1995, 180 p. [Google Scholar]
Barféty JC, Lemoine M, Graciansky, Tricart P, Mercier D, avec la collaboration de Pêcher A et al., 1995. Notice explicative, Carte géol. France (1/50000), feuille Briançon (823). Orléans : BRGM, 180 p. Carte géologique par J.C. Barféty, M. Lemoine, D. Mercier, R. Polino, P. Nievergelt, J. Bertrand, T. Dumont, S. Amaudric du Chaffaut, A. Pêcher, G. Monjuvent (1996). [Google Scholar]
Bertrand J-M., Pidgeon RT, Leterrier J, Guillot F, Gasquet D, Gattiglio M. 2000a. SHRIMP and IDTIMS U-Pb zircon ages of the pre-Alpine basement in the Internal Western Alps (Savoy and Piemont). Bull Suisse Minéral Pétrogr 80: 1–24. [Google Scholar]
Bertrand J-M., Guillot F, Leterrier J. 2000b. Âge Paléozoïque inférieur (U-Pb sur zircon) de métagranophyres de la nappe du Grand Saint-Bernard (zona interna, vallée d’Aoste, Italie). C R Acad Sci Paris 330: 473–478. [Google Scholar]
Biju-Duval J. 1975. Etude pétrologique des terrains cristallins de la région du Sirac (sud du massif des Ecrins-Pelvoux-Haut dauphiné) − Alpes-France. Thèse de doctorat. Université Joseph-Fourier-Grenoble I. [Google Scholar]
Bousquet R, Oberhänsli R, Schmid SM, Berger A, Wiederkehr M, Robert C et al., 2012. Metamorphic framework of the Alps, Commission for the Geological Map of the World. [Google Scholar]
Bussien D, Bussy F, Magna T, Masson H. 2011. Timing of Palaeozoic magmatism in the Maggia and Sambuco nappes and paleogeographic implications (Central Lepontine Alps). Swiss J Geosci 104: 1–29. https://doi.org/10.1007/s00015-010- 0049-6 [CrossRef] [Google Scholar]
Bussy F, Derron M-H., Jacquod J, Sartori M, Thelin P. 1996. The 500 Ma-old Thyon metagranite: a new A-type granite occcurrence in the western Penninic Alps (Wallis, Switzerland). Eur J Mineral 8: 565–575. [CrossRef] [Google Scholar]
Cavargna-Sani M, Epard JL, Bussy F, Ulianov A. 2014. Basement lithostratigraphy of the Adula nappe: implications for Palaeozoic evolution and Alpine kinematics. Int J Earth Sci (Geol Rundsch) 103: 61–82. https://doi.org/10.1007/s00531-013- 0941-1. [Google Scholar]
Chantraine J, Autran A, Cavelier C. 2003. Carte géologique de la France à l’échelle du millionième, 6^e édition bis, BRGM. [Google Scholar]
Chantraine J, Egal E, Thiéblemont D, Le Goff E, Guerrot C, Ballèvre M et al., 2001. The Cadomian active margin (North Armorican Massif, France): a segment of the North Atlantic Panafrican belt. Tectonophysics 331: 1–18. [CrossRef] [Google Scholar]
Chu Y, Lin W, Faure M, Wang Q. 2016. Detrital zircon U-Pb ages and Hf isotopic constraints on the terrigeneous sediments of the western Alps and their paleogeographic implications. Tectonics 35:1–20. https://doi.org/10.1002/2016 CT004276. [CrossRef] [Google Scholar]
Couzinié S, Laurent O, Poujol M, Mintrone M, Chelle-Michou C, Moyen J-F et al., 2017. Cadomian S-type granites as basement rocks of the Variscan belt (Massif Central, France): Implications for the crustal evolution of the north Gondwana margin. Lithos 286-287: 16–34. [Google Scholar]
Faure M, Ferrière J. 2022. Reconstructing the Variscan terranes in the Alpine basement: facts and arguments for an Alpidic orocline. Geosciences 12: 65:1–29. https://doi.org/10.3390/geosciences12020065. [CrossRef] [Google Scholar]
Fréville K, Trap P, Faure M, Melleton J, Xian-Hua L, Wei L et al., 2018. Structural, metamorphic and geochronological insights on the Variscan evolution of the Alpine basement in the Belledonne Massif (France). Tectonophysics 726: 14–42. https://doi.org/10.1016/j.tecto.2018.01.017. [CrossRef] [Google Scholar]
Green ECR, White RW, Diener JFA, Powell R, Holland TJB, Palin RM. 2016. Activity-composition relations for the calculation of partial melting equilibira in metabasic rocks. J Metam Geol 92: 1181–1189. [Google Scholar]
Guillot F, Liégeois J-P., Fabre J. 1991. Des granophyres du Cambrien terminal dans le Mont Pourri (Vanoise, zone briançonnaise) : première datation U-Pb sur zircon d’un socle des zones internes des Alpes françaises. C R Acad Sci Paris 313(II): 239–244. [Google Scholar]
Guillot S, Ménot RP. 2009. Paleozoic evolution of the external crystalline massifs of the Western Alps. CR Geosci 341: 253–265. [CrossRef] [Google Scholar]
Guillot S, di Paola S, Ménot RP, Ledru P, Spalla M, Gosso G et al., 2009. Suture zones and importance of strike-slip faulting for Variscan geodynamic reconstructions of the External Crystalline Massifs of the Western Alps. Bull Soc Géol Fr 180: 483–500. [CrossRef] [Google Scholar]
Hayden LA, Watson EB. 2007. Rutile saturation in hydrous melts and its bearing on Ti-thermometry of quartz and zircon. Earth Planet Sci Lett 258: 561–568. [CrossRef] [Google Scholar]
Hoskin PWO, Schaltegger U. 2003. The composition of zircon and igneous and metamorphic petrogenesis. Rev Mineral Chem 53: 27–62. [CrossRef] [Google Scholar]
Jacob JB, Janots E, Guillot S, Rubatto D, Fréville K, Melleton J et al., 2022. HT overprint of HP granulites in the Oisans-Pelvoux massif: implications for the dynamics of the Variscan collision in the external Western Alps. Lithos 416-417: 1–23.https://doi.org/10.1016/j.lithos.2022.106650 [CrossRef] [Google Scholar]
Kebede T, Klötzli U, Kosler J, Skiöld T. 2005. Understanding the pre-Variscan and Variscan basement components of the central Tauern Window, Eastern Alps (Austria): constraints from single zircon U-Pb geochronology. Int J Earth Sci (Geol Rundsch) 94: 336–353. https://doi.org/10.1007/s00531-005-0487-y. [Google Scholar]
Kirkland CL, Smithies RH, Taylor RJM, Evans N, McDonald B. 2015. Zircon Th/U ratios in magmatic environs. Lithos 212–215: 397-414. http://dx.doi.org/10.1016/j.lithos.2014.11.021. [Google Scholar]
Laurent O, Couzinié S, Zeh A et al., 2017. Protracted, coeval crust and mantle melting during Variscan late-orogenic evolution: U-Pb dating in the eastern French Massif Central. Int J Earth Sci (Geol Rundsch) 106: 421–451. https://doi.org/10.1007/s00531-016- 1434-9. [Google Scholar]
Liati A, Gebauer D, Mark Fanning C. 2009. Geochronological evolution of HP metamorphic rocks of the Adula nappe, Central Alps, in pre-Alpine and Alpine subduction cycles. J Geol Soc London 166: 797–810. https://doi.org/10.1144/0016- 76492008-033. [CrossRef] [Google Scholar]
Liati A, Gebauer D, Froitzheim N, Mark Fanning C. 2001. U-Pb SHRIMP geochronology of an amphibolitized eclogite and an orthogneiss from the Furg zone (Western Alps) and implications for its geodynamic evolution. Schweis Mineral Petrogr Mitt 81: 379–393. https://doi.org/10.5169/seals-61699. [Google Scholar]
Linnemann U, Gerdes A, Drost K, Buschmann B. 2007. The continuum between Cadomian orogenesis and opening of the Rheic Ocean: Constraints from LA-ICPMS U-Pb zircon dating and analysis of plate-tectonic setting (Saxo-Thuringian zone, northeastern Bohemian Massif, Germany). In Linnemann U, Nance RD, Kraft P, Zulauf G. eds. The evolution of the Rheic Ocean: from Avalonian Cadomian active margin to Alleghenian-Variscan collision. Geol Soc Am Sp Paper 423: 61–96. [Google Scholar]
Lopez-Sanchez MA, Aleinikoff JN, Marcos A, Martínez FJ, Llana-Fúnez S. 2015. An example of low-Th/U zircon overgrowths of magmatic origin in a late orogenic Variscan intrusion: the San Ciprián massif (NW Spain). J Geol Soc 173: 282–291. https://doi.org/10.1144/jgs 2015-071. [Google Scholar]
Ludwig KR. 2012. ISOPLOT a geochronological toolkit for Microsoft Excel, Berkeley Geochronology Center, Spec. Pub. N° 5. [Google Scholar]
Manzotti P, Ballèvre M, Poujol M. 2016. Detrital zircon geochronology in the Dora-Maira and Zone Houillère: a record of sediment travel paths in the Carboniferous. Terra Nova 28: 279–288. https://doi.org/10.1111/ter.12219. [CrossRef] [Google Scholar]
Manzotti P, Poujol M, Ballèvre M. 2015. Detrital zircon geochronology in blueschist-facies meta-conglomerates from the Western Alps: implications for the late Carboniferous to early Permian palaeogeography. Int J Earth Sci (Geol Rundsch) 104: 703–731. https://doi.org/10.1007/s00531-014- 1104-8. [CrossRef] [Google Scholar]
Ménot RP, Peucat JJ, Scarenzi D, Piboule M. 1988. 496 My age of plagiogranites in the Chamrousse ophiolite complex (external crystalline massifs in the French Alps): evidence of a Lower Paleozoic oceanization. Earth Planet Sci Lett 88: 82–92. https://doi.org/10.1016/0012-821X(88) 90048-9. [CrossRef] [Google Scholar]
Montel JM. 1993. A model for monazite/melt equilibirum and application to the generation of granitic magmas. Chem Geol 110: 127–146. [CrossRef] [Google Scholar]
Müller B, Klötzli U, Schaltegger U, Flisch M. 1996. Early Cambrian oceanic plagiogranite in the Silvretta nappe eastern Alps: geochemical, zircon U-Pb and Rb-Sr data from garnet-hornblende-plagioclase gneisses. Geol Rundsch 85: 822–831. [CrossRef] [Google Scholar]
Pêcher A, Vialon P. 1970. Présence de gneiss du faciès granulite dans le noyau précambrien du massif des Ecrins-Pelvaoux (Alpes du Dauphiné, France). CR Acad Sc Paris 270: 666–668. [Google Scholar]
Pin Ch, Carme F. 1987. A Sm-Nd isotopic study of 500 Ma old oceanic crust in the Variscan belt of western Europe: the Chamrousse ophiolite complex, Western Alps (France). Contrib Mineral Petrol 96: 406–413. [Google Scholar]
Poller U. 1997. U-Pb single zircon study of a gabbroic and granitic rocks of Val Barlas-ch (Silvretta nappe, Swizerland). Schweis Mineral Petrogr Mitt 78: 383–395. doi.org/10.5169/seals- 58490. [Google Scholar]
Pystina Y, Pystin A. 2019. Th/U relations as an indicator of the genesis of metamorphic zircons (on the example of the north of the Urals). In: Glagolev S, ed. ICAM 2019, SPEES pp. 129–132. https://doi. org/10. 1007/978-3-030-22974-0_30. [Google Scholar]
Schaltegger U, Nägler ThF, Corfu F, Maggeti M, Galetti G, Stosch HG. 1997. A Cambrian island arc in the Silvretta nappe: constraints from geochemistry and geochronology. Schweiz Mineral Petrogr Mitt 77: 337–350. [Google Scholar]
Schaltegger U, Gebauer D, von Quadt A. 2002. The mafic-ultramafic rock association of Loderio-Biasca (lower Pennine nappes, Ticino, Switzerland): Cambrian oceanic magmatism and its bearing on early Paleozoic paleogeography. Chem Geol 186: 265–279. [CrossRef] [Google Scholar]
Scheiber T, Berndt J, Mezger K, Pfiffner OA. 2014. Precambrian to Paleozoic zircon record in the Siviez-Mischabel basement (western Swiss Alps). Swiss J Geosci 107: 49–64. [CrossRef] [Google Scholar]
Schmid SM, Fügenschuh B, Kissling E, Schuster R. 2004. Tectonic map and overall architecture of the Alpine orogen. Eclog Geol Helvet 97: 93–117. [CrossRef] [Google Scholar]
Schmitz MD, Schoene B. 2007. Derivation of isotope ratios, errors, and errors correlations for U-Pb geochronology using ²⁰⁵Pb-²³⁵U-(²³³U)-spiked isotope dilution thermal ionization mass spectrometric data. Geochem Geophys Geosyst Q08006:1–20. https://doi.org/10.1029/2006 GC001492. [Google Scholar]
Siegesmund S, Oriolo S, Broge A, Hueck M, Lammerer B, Basei MAS et al., 2023. Cadomian to Cenerian accretionary orogenic processes in the Alpine basement: the detrital zircon archive. Int J Earth Sci. 112:1157–1174. https://doi.org/10.1007/s00531-023- 02305-6. [Google Scholar]
Sláma J, Košler J, Condon DJ, Crowey JL, Gerdes A, Hanchar JM et al., 2008. Plešovice zircon − a new natural reference material for U-Pb and Hf isotopic microanalysis. Chem Geol 249: 1–35. https://doi.org/10.1016/j.chemgeo.2007.11.005. [CrossRef] [Google Scholar]
Stampfli GM, Hochard C, Vérard C, Wilhem C, von Raumer J. 2013. The formation of Pangea. Tectonophysics 593: 1–19. [CrossRef] [Google Scholar]
Termier P. 1903. Les montagnes entre Briançon et Vallouise. Mém Expl Carte Géol Fr 182. [Google Scholar]
Van Achterbergh E, Ryan C, Jackson S, Griffin WL. 2001. Appendix 3 data reduction software for LA-ICP-MS in Laser-Ablation-ICPMS in the earth sciences. In : Sylvester P. ed. Mineral Ass Canada Short Course 29: 239–243. [Google Scholar]
Vanardois J, Trap P, Roger F, Melleton J, Marquer D, Paquette JL et al. 2022. Deformation, crustal melting and magmatism in the crustal-scale East-Variscan Shear Zone (Aiguilles-Rouges and Mont-Blanc massifs, Western Alps). J. Struct. Geol 163: 1-22. https://doi.org/10.1016/j.jsg.2022.104724. [Google Scholar]
Von Raumer J, Stampfli GM, Arenas R, Sánchez Martínez S. 2015. Ediacaran to Cambrian oceanic rocks of the Gondwana margin and their tectonic interpretation. Int J Earth Sci 104: 1107–1121. https://doi.org/10.1007/s00531-015-1142-x. [CrossRef] [Google Scholar]
Watson EB, Harrison TM. 1983. Zircon saturation revisited: temperature and composition effects in a variety of crustal magma types. Earth Planet Sci Lett 64: 295–304. https://doi.org/10.1016/0012-821X(83)90211-X. [CrossRef] [Google Scholar]
Wetherill GW. 1956. Discordant uranium-lead ages 1. Trans Am Geophys Union 37: 320–326. [CrossRef] [Google Scholar]
Wiedenbeck M, Allé P, Corfu F, Griffin WL, Meier M, Oberli F et al., 1995. Three natural zircon standards for U-Th-Pb, Lu-Hf, trace element and REE analysis. Geostandards Newsletter 19: 1–23. [CrossRef] [Google Scholar]
Yakymchuk C, Christopher L, Kirkland CL, Clark C. 2018. Th/U ratios in metamorphic zircon. J Metamorph Geol 36: 715–737. https://doi.org/10.1111/jmg.12307. [CrossRef] [Google Scholar]

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