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Basque Arc

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Journal Article
Journal: Lithosphere
Published: 01 June 2017
Lithosphere (2017) 9 (3): 441-452.
... Zone foreland), whereas the latter relate to more internal zones of the Variscan orogen in the northern arm of the arc (currently forming the westernmost outcrops of the Pyrenean Axial Zone in the so-called Basque massifs; e.g. Ábalos et al., 2002 , and references therein). In none of such onshore...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2015
GSA Bulletin (2015) 127 (11-12): 1632-1644.
... is located northwest of the city of Bilbao (Biscay Province, Basque Country). During Eocene times, the area formed part of the North Iberian continental paleomargin, being located at the bottom of a 1500-m-deep marine gulf that opened into the Atlantic Ocean at ∼35°N latitude ( Fig. 1 ; Payros et al., 2006...
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Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP363.25
EISBN: 9781862396111
... kinematics. In this work we present the example of the Poza de la Sal Diapir, which is a salt diapir that pierces the synorogenic deposits of the Basque Pyrenees. The integrated analysis of mesostructural data, which includes field-collected faults, joints and fracture traces digitalized on high-resolution...
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Journal Article
Published: 20 November 2000
Canadian Journal of Earth Sciences (2000) 37 (12): 1691-1710.
... with the extensive late Arenig – early Llanvirn back-arc rifting event along the entire peri-Gondwanan margin of the northern Appalachians. The external position of the Port-aux-Basques Complex with respect to the back-arc elements in the Hermitage Flexure, coupled with the rock types and geochemistry...
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Journal Article
Published: 01 January 1976
Bulletin de la Société Géologique de France (1976) S7-XVIII (6): 1725-1728.
...Bernard Azambre; Michel Rossy GeoRef, Copyright 2013, American Geosciences Institute. 1976 alkalic composition Basque Arc Cretaceous Europe France French Pyrenees Hautes-Pyrenees France igneous rocks intrusions magmatism Mesozoic metamorphism Oloron-Sainte-Marie France Pouzac...
Journal Article
Published: 01 April 1998
Journal of the Geological Society (1998) 155 (2): 323-334.
..., Port aux Basques Complex, Margaree and Kelby Cove orthogneiss comprise fractionated and crustally contaminated MORB-like and within plate tholeiites, suggestive of an ensialic Okinawa type back-arc basin. These have comparable characteristics to metabasites in the Harbour le Cou Group and suggest...
Journal Article
Published: 01 March 2001
Journal of Sedimentary Research (2001) 71 (2): 318-333.
... and facies architecture of a 1.9 Ga marine volcanic arc, Skellefte District, Sweden : Economic Geology , v. 91 , p. 1022 - 1053 . Azambre , B. , and Rossy , M. , 1976 , Le magmatisme alcalin d’âge crétacé dans les Pyrénées occidentales et l’Arc Basque; ses relations avec le...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2011
GSA Bulletin (2011) 123 (3-4): 427-438.
... et al., 1999 ; Vergés and García Senz, 2001 ; Gómez et al., 2002 ), and facies and thickness changes across several faults attest to protracted syntectonic sedimentation. The most intensely deformed portion of the Basque-Cantabrian Basin is the so-called Basque Arc ( Feuillée and Rat, 1971 ). Here...
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Journal Article
Journal: Clay Minerals
Published: 01 April 2000
Clay Minerals (2000) 35 (2): 393-410.
... and northern domains of the Alava Block, and its relationship with the Basque Arc. Modified from García-Mondejar (1982) . We have considered the top of the Lower Cretaceous equivalent to the boundary between these terrigenous materials and the clearly marine carbonate rocks (limestones and marls...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2015
GSA Bulletin (2015) 127 (7-8): 982-1000.
...; however, the main controls on fold growth and fracture development remain unclear and, in some cases, controversial. This paper presents a new approach in the analysis of the growth of laccolith intrusions and forced folds. In this study, deep-water growth deposits at an outcrop in the Basque-Cantabrian...
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Journal Article
Published: 02 May 2013
Geological Magazine (2013) 150 (6): 986-1001.
... hydrothermal system, which vented to the Late Albian seafloor warm to hot hydrocarbon-rich fluids. Vented hydrocarbon was generated from Albian organic-rich sediments by contact alteration with hydrothermal fluids. block rotation palaeocurrent palaeomagnetism Albian Basque–Cantabrian Basin...
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Journal Article
Published: 30 April 2018
Bulletin de la Société Géologique de France (2018) 189 (2): 7.
... has shown that the “old cores” of Palaeozoic chains often correspond to early metamorphic and igneous phases of the Palaeozoic orogenies ( e.g. Pin and Vielzeuf, 1983 ). On the other hand, the “Island Garlands” are reminiscent of “island arcs”, nowadays related to subduction, and hence a much better...
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Journal Article
Published: 01 January 2011
Journal of the Geological Society (2011) 168 (1): 235-250.
... prospectivity in this still little explored region. The Zagros Mountains can be divided into five NW–SE-trending tectonic domains (Fig. 1 ): the Urumieh–Dokhtar volcanic arc, the metamorphic Sanandaj Sirjan Zone, the Imbricated Zone, the Simply Folded Belt and the Mesopotamian–Persian Gulf foreland...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2009
GSA Bulletin (2009) 121 (7-8): 963-978.
... Formation in southwest Lurestan shows that folding reached the front of the folded belt in the Pusht-e Kuh arc in Lurestan Province around 7.6 ± 0.5 Ma ( Homke et al., 2004 ) ( Fig. 2 ). In contrast, the initiation of the flexural basin during deposition of the Amiran Formation on top of the carbonate...
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Journal Article
Published: 01 November 1991
Canadian Journal of Earth Sciences (1991) 28 (11): 1769-1779.
... younger than the Aspy terrane sequences. Aspy terrane units are most similar to Ordovician–Silurian volcanic and metamorphic units in southwestern Newfoundland, including the La Poile Group and the Port aux Basques gneiss. Together with other occurrences of Late Ordovician to Early Silurian volcanic-arc...
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2010
DOI: 10.5382/SP.15.2.01
EISBN: 9781629490403
... carbonates, and calc-alkaline island-arc volcanic rock sequences. It is known primarily for its copper and gold endowment, but it includes several large and globally significant zinc-lead provinces. These include the Basque-Cantabrian basin (Réocin) in northern Spain, the Atlas zinc-lead district in Morocco...
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Journal Article
Published: 01 November 1998
Canadian Journal of Earth Sciences (1998) 35 (11): 1252-1270.
... by subduction and back-arc basin opening and closure during the Silurian to Early Devonian. The Blair River Inlier is a fragment of Grenvillian rocks, similar to those in the Grenvillian inliers in the Humber zone of western Newfoundland in terms of age, rock types, and isotopic composition. Silurian...
Journal Article
Published: 21 March 2017
Journal of the Geological Society (2017) 174 (4): 787-790.
... of Middle Ordovician back-arc volcanic rocks in the Bellewstown terrane in the Irish Caledonides implies that the Tetagouche–Exploits back-arc basin never existed in Ireland. The emphasis on the absence of evidence surprised us, because ‘absence of evidence is not evidence of absence’. However...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2012
GSA Bulletin (2012) 124 (11-12): 1702-1723.
... understand the formation of allochthonous ophiolitic and island-arc terranes within ancient orogens and the nature of their accretion. During the early Paleozoic closure of the Iapetus Ocean, diverse sets of arc terranes, oceanic tracts, and ribbon-shaped microcontinental blocks were accreted to the passive...
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Journal Article
Published: 01 December 2008
Journal of the Geological Society (2008) 165 (6): 1007-1018.
... areas, included within the Basque arc. The stratigraphic sequence in this basin includes Lower Cretaceous continental and lagoon series (more than 2500 m thick in the Bilbao basin), the Aptian marine platform sequence, with thickness varying from 2500 to 1000 m from west to east, and the post-Aptian...
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