Urdach Massif

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Journal Article
Published: 15 July 2019
Bulletin de la Société Géologique de France (2019) 190 (1): 8.
... of the western North Pyrenean Zone (NPZ), the Urdach massif (this paper) and the Saraillé massif (paper 2). The peridotites have been exhumed to lower crustal levels during the Cretaceous rifting period in the future NPZ. They are associated with Mesozoic pre-rift metamorphic sediments and small units of thinned...
Journal Article
Published: 01 August 2006
The Canadian Mineralogist (2006) 44 (4): 817-842.
...Pierre Monchoux; François Fontan; Philippe De Parseval; Robert F. Martin; Ru Cheng Wang Abstract Dikes of albitite cross-cut two massifs of serpentinized lherzolite in the Pyrénées, France. At Espéchère (Hautes-Pyrénées), they are corundum-bearing, whereas at Urdach (Pyrénées-Atlantiques...
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Journal Article
Published: 01 August 2006
The Canadian Mineralogist (2006) 44 (4): 843-856.
... d’albitite pegmatitique recoupent deux massifs de lherzolite serpentinisée, à Urdach et Espéchère, sur le versant nord des Pyrénées occidentales en France. Ces roches présentent des caractères minéralogiques qui les rapprochent des assemblages à feldspath alcalin ± corindon ± zircon formant des...
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Journal Article
Published: 17 November 2017
Bulletin de la Société Géologique de France (2017) 188 (6): 35.
... oriented, Barlanès and Saison listric faults provided the main crustal thinning leading locally (Urdach) to mantle exhumation. Finally, at the beginning of the Late Cretaceous, the trough widened through transtension motion (N-S distension associated with E-W sinistral strike slip) leading to the creation...
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Journal Article
Published: 01 December 2005
The Canadian Mineralogist (2005) 43 (6): 2027-2048.
... not to the same extent as at Urdach and Espéchères. On the other hand, mineral collectors are aware that coarse corundum does occur in the Finero massif, in pegmatite dikes exposed in the Cannobina Valley, for example (A. Guastoni, pers. commun., 2004). Unfortunately, these dikes have never been...
Journal Article
Journal: Geology
Published: 01 May 2001
Geology (2001) 29 (5): 451-454.
... which are compositionally similar to those predicted by experimental studies relevant to near-solidus melting of mantle peridotite. The studied rocks are in the Urdach massif ( Monchoux, 1970 ), one of the westernmost and largest (1500 × 1000 m) of the ∼40 ultramafic bodies scattered along...
Journal Article
Published: 01 July 2006
Journal of the Geological Society (2006) 163 (4): 631-640.
... & Clocchiatti 1994 ), the first field occurrence of a Si–Al–Na-rich felsic melt within orogenic lherzolites was reported only a few years ago as a dyke in the Urdach massif (France) of the North Pyrenean zone ( Pin et al . 2001 ). At first sight, the Ronda peridotites are a suitable subject...
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Journal Article
Published: 01 November 2013
Bulletin de la Société Géologique de France (2013) 184 (6): 621-629.
... of the associated clastic deposits, proposing a detailed analysis of the breccias cropping out in a limited area east of the lherzolite massif. The cartographic, sedimentological and metamorphic evidence leads the authors to regard these breccias as a shallow marine to lacustrine equivalent of the Albo-Cenomanian...
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Journal Article
Published: 30 September 2017
The Canadian Mineralogist (2017) 55 (5): 823-843.
... in the Ilmen Mountains and described here, they have also been found in nepheline syenite pegmatites in Ontario, Canada ( Moyd 1949 , Field 1951 ); in a leucocratic monzonite dike (a type of alkali feldspar syenite) in Garba Tula, central Kenya ( Simonet et al . 2004 ); in pegmatitic dikes at Urdach...
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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP413.3
EISBN: 9781862397170
... ; Le Pochat et al. 1978 ). Subsalt formations are coupled and deformed together with the upper crustal basement rocks and mainly crop out south of the basin (e.g. south of the Labourd Massif, in the Jara–Arbailles area and south of the Layens: Fig. 8 ). In contrast, supra-salt formations are often...
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Journal Article
Journal: AAPG Bulletin
Published: 01 July 2010
AAPG Bulletin (2010) 94 (7): 957-975.
... be studied in the field. Jammes et al. (2009) showed that, in the Massif de Labourd, upper and midcrustal rocks were exhumed along top-basement detachment faults and were onlapped by Cretaceous sediments. This interpretation is supported by the occurrence of clasts of midcrustal granulites reworked...
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Journal Article
Published: 01 July 2010
Journal of the Geological Society (2010) 167 (4): 751-767.
... the serpentinized lherzolite at Urdach and Espérèche and have been dated at 101 ± 2 Ma ( Pin et al . 2001, 2006 ). Boulvais et al . (2007 ) gave a mid-Cretaceous age for the albitite developed within the Salvezines Massif (117 Ma by Ar–Ar dating on hydrothermal muscovite), in contradiction to previous...
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