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Queyras Ophiolite

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( a ) Pre-alpine stratigraphic columnar section of the <b>Queyras</b> <b>ophiolite</b>, d...
Published: 28 March 2019
Fig. 5. ( a ) Pre-alpine stratigraphic columnar section of the Queyras ophiolite, depicting the lateral and vertical variations in the ophiolite and the overlying sedimentary succession. Talc and chlorite schist and serpentine schist marking a shear zone (TCS) between the upper mantle peridotites
Journal Article
Published: 01 July 1985
Bulletin de la Société Géologique de France (1985) I (4): 473-480.
...Y. Lagabrielle; M. Lemoine; P. Tricart Alpine Orogeny crust Europe France gabbros Hautes-Alpes France igneous rocks klippen metaigneous rocks metamorphic rocks metasomatic rocks oceanic crust ophiolite plutonic rocks serpentinite structural geology tectonic units tectonics...
Journal Article
Published: 01 March 1989
Bulletin de la Société Géologique de France (1989) V (2): 317-326.
... cumulates detrital sedimentation Europe facies France gabbros Guil Valley Hautes-Alpes France igneous rocks Jurassic Lauzes Peak Complex magma chambers major elements Mesozoic nappes oceanic crust ophiolite peridotites plutonic rocks Queyras Valley sedimentation Tertiary ultramafics...
Journal Article
Journal: GSA Bulletin
Published: 01 March 2009
GSA Bulletin (2009) 121 (3-4): 502-518.
... ) conditions in the Queyras Schistes lustrés (modified after Tricart and Schwartz, 2006 ). The eclogitic conditions in the Monviso ophiolitic unit are included for comparison ( Schwartz et al., 2000 ). Metamorphic facies are from Spear (1993) : GS—greenschist, BS—blueschist, EA—eclogite, ECL—epidote...
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Journal Article
Published: 01 November 2006
Bulletin de la Société Géologique de France (2006) 177 (6): 299-310.
... Schistes lustrés, extension in ductile then brittle conditions accommodated the tectonic denudation of the Dora-Maira crystalline massif below the Monviso ophiolites, themselves exhumed below the Queyras Schistes lustrés. Consistently, the final cooling of these Schistes lustrés becomes younger...
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Image
Field images of various lithologies and contact relationships in the <b>Queyra</b>...
Published: 28 March 2019
Fig. 6. Field images of various lithologies and contact relationships in the Queyras ophiolite. ( a ) The dashed line between the massive serpentinite and talcschist–serpentine schist marks a tectonic contact. Talcschist–serpentine schist is part of an extensional shear zone (detachment fault
Journal Article
Published: 17 July 2017
Geological Magazine (2018) 155 (2): 233-249.
...GIANNI BALESTRO; ANDREA FESTA; ALESSANDRO BORGHI; DANIELE CASTELLI; MARCO GATTIGLIO; PAOLA TARTAROTTI Abstract The eclogite-facies Monviso meta-ophiolite Complex in the Western Alps represents a well-preserved fragment of oceanic lithosphere and related Upper Jurassic – Lower Cretaceous sedimentary...
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Journal Article
Journal: Lithosphere
Published: 01 December 2015
Lithosphere (2015) 7 (6): 646-652.
... ophiolite is exposed in the southern part of the western Alps ( Fig. 1 ), where it rests tectonically on the Dora Maira unit, which was part of the European continental margin ( Dal Piaz et al., 2003 ), and below the Queyras Schistes Lustrés unit, which consists of carbonaceous metasedimentary rocks...
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Journal Article
Journal: Lithosphere
Published: 01 June 2017
Lithosphere (2017) 9 (3): 399-407.
... of the Antrona serpentinites (Antrona ophiolite, Pennine Alps) as inferred from microstructural, microchemical, and neutron diffraction quantitative texture analysis : Ofioliti , v. 6 , p. 167 – 189 . Tricart , P. , and Lemoine , M. , 1991 , The Queyras ophiolite west of Monte Viso (Western...
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Journal Article
Published: 01 October 2014
Italian Journal of Geosciences (2014) 133 (3): 409-426.
...Gianni Balestro; Bruno Lombardo; Gloria Vaggelli; Alessandro Borghi; Andrea Festa; Marco Gattiglio Abstract The Monviso Meta-Ophiolite Complex is a remnant of the Piedmont-Ligurian oceanic lithosphere stacked in the Western Alps, and consisting of dismembered HP meta-ophiolite sequences...
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Journal Article
Published: 01 January 2018
European Journal of Mineralogy (2018) 30 (1): 17-31.
...Paolo Nimis; Paolo Omenetto; Giorgia Stasi; Caterina Canovaro; Gregorio Dal Sasso; Gilberto Artioli; Ivana Angelini We report Multi-Collector-ICP-MS analyses of Pb isotopes for hydrothermal deposits in ophiolitic units of the Western Alps (WA) and Northern Apennine (NA). The deposits include (i...
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Journal Article
Published: 01 January 2015
European Journal of Mineralogy (2015) 27 (1): 31-50.
... 2015 Cogne magnetite hydrothermalism structure refinement serpentine minerals micro-Raman COH fluids Magnetite of the Cogne ore deposit, associated with the serpentinite of the Piemonte ophiolite nappe (NW Alps, Italy), is known for being very Fe-rich and Cr-free ( Stella, 1921...
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Journal Article
Published: 04 September 2019
Journal of the Geological Society (2019) 176 (5): 899-912.
... and others ( Balestro et al . 2019 ) document the litho- and bio-stratigraphy, internal structure and tectonic development of the Western Alpine Ophiolites. Concentrating on three major ophiolite complexes (Monviso, Queyras Schistes Lustrés and Chenaillet), they show that the Western Alpine Ophiolites...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 January 2006
GSA Bulletin (2006) 118 (1-2): 109-125.
..., geochronological, structural, and stratigraphical data from Laurentian continental margin rocks and adjacent ophiolitic rocks in southern Québec indicate that the Saint-Daniel Mélange is an olistostromal, syncollisional piggyback basin that represents the base of the Magog Group forearc basin. The regional...
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Journal Article
Published: 28 March 2019
Journal of the Geological Society (2019) 176 (5): 913-930.
...Fig. 5. ( a ) Pre-alpine stratigraphic columnar section of the Queyras ophiolite, depicting the lateral and vertical variations in the ophiolite and the overlying sedimentary succession. Talc and chlorite schist and serpentine schist marking a shear zone (TCS) between the upper mantle peridotites...
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Journal Article
Published: 01 June 2009
Italian Journal of Geosciences (2009) 128 (2): 279-293.
... oceanic spreading ridges was early reported in the 60’s due to the results of sediment cores and dredge hauls collected along the Mid-Atlantic Ridge. In the meantime, detailed analysis of the relationships between oceanic sediments of Late Jurassic age and their primary basement in the Apennine ophiolites...
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Journal Article
Published: 01 October 2000
The Canadian Mineralogist (2000) 38 (5): 1137-1161.
...Encarnación Puga; José Miguel Nieto; Antonio Díaz De Federico Abstract The Betic Ophiolitic Association of the Mulhacén Complex, in the Betic Cordilleras of southeastern Spain, is composed, as are other Mesozoic Alpine ophiolitic associations derived from the Western Tethys, of disrupted thrust...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2001
GSA Bulletin (2001) 113 (1): 129-143.
... by isotopic methods as Bajocian, and is consistent with the timing of the structural evolution of the continental margins. The earliest fragments of Tethyan oceanic crust are characterized by the associations of ophiolites with deep-sea sediments, and coarse reworked sediments including platform...
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Journal Article
Published: 31 January 2012
Geological Magazine (2012) 149 (5): 841-856.
...S. SCHWARTZ; S. GUILLOT; P. TRICART; M. BERNET; S. JOURDAN; T. DUMONT; G. MONTAGNAC Abstract We present the first contribution of tracing the source area of ophiolitic detritus in the Alpine molasse deposits by Raman spectroscopy. The lower Oligocene molasse deposits preserved in the Barrême basin...
Journal Article
Published: 01 May 2019
European Journal of Mineralogy (2019) 31 (3): 405-428.
... multidisciplinary studies of ophiolitic serpentinites show that pristine, oceanic, geochemical imprints ( e.g. high 11 B, marine Sr isotopes, low As + Sb) become reset towards more radiogenic Sr, lower 11 B, and higher As + Sb via metasomatic exchange with crust-derived fluids during subduction accretion...
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