Variscan Tectonics in the Malaguide Complex (Betic Cordillera, Southern Spain): Stratigraphic and Structural Alpine versus Pre‐Alpine Constraints from the Ardales Area (Province of Malaga). II. Structure

Martín‐Algarra, Agustín; Mazzoli, Stefano; Perrone, Vincenzo; Rodríguez-Cañero, Rosario

doi:10.1086/597365

Cited by 21 publications

(7 citation statements)

References 47 publications

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“…The latter authors estimate substantially more than 100 km of right-lateral displacement has occurred along this boundary during Miocene time. Martín-Algarra et al (2009) give the age of sediments that bury the outcrop of the internal-external zone boundary as upper Tortonian at the western end of its outcrop.…”

Section: Wider Geodynamic Implicationsmentioning

confidence: 99%

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks

Rutter

Burgess

Faulkner

2013

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The Carboneras Fault Zone (CFZ) of SE Spain separates the volcanic Cabo de Gata terrain to the SE (accumulated over 18 to 6 Ma BP) from the tract of uplifted Alpine metamorphic basement blocks and post-orogenic basins that comprise the Betic Cordilleras to the NW. The CFZ cuts metamorphic basement and folded post-orogenic sediments and volcanic rocks, and acted as a conduit for upper Miocene calc-alkaline volcanic rocks to the surface. NW of the CFZ, unconformities and deformation episodes affect successive sedimentary formations of upper Miocene age (upper Serravallian through Messinian). CFZ movements are constrained stratigraphically by an unconformity within the volcanic sequence. Older, pre-faulting volcanic rocks are uptilted against the CFZ whilst the youngest volcanic rocks step across it. 40 Ar-39 Ar age determinations on amphibole crysts from the volcanic rocks show the main CFZ movements began 11-12 Ma BP and ended about 6 Ma. Lesser movement rates continue today. The CFZ is interpreted as part of a transform fault system separating NE-SW stretched and NW-SE shortened crust deformed above a southwestward-retreating subducted slab, from a less deformed terrain lying to the SE. Locally, total offset on the CFZ may be up to 40 km but is at least 15 km.

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Section: Wider Geodynamic Implicationsmentioning

confidence: 99%

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks

Rutter

Burgess

Faulkner

2013

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“…Their tectonic evolution is related to oblique convergence between the major Eurasian and African plates and the Alboran continental domain [e.g., Balanyá and García‐Dueñas , 1987; Sanz de Galdeano , 1990; Platt et al , 2003; Booth‐Rea et al , 2007]. This domain originally belonged to the AlKaPeCa orogenic belt (Alboran‐Kabylies‐Peloritan‐Calabria) that was dismembered in different blocks [e.g., Martín‐Algarra , 1987; Sanz de Galdeano , 1990; Martín‐Algarra et al , 2009and references therein]. There is a general consensus that the Alboran Domain migrated westward and collided with the South Iberian paleomargin shaping the Gibraltar arc.…”

Section: Geological Settingmentioning

confidence: 99%

“…The Maláguide Complex [ Blumenthal , 1930; Foucault and Paquet , 1971] includes a Paleozoic basement, affected by a LP/LT Variscan deformation event [ Ruiz‐Cruz , 2004; Martín‐Algarra et al , 2009], and Mesozoic‐Aquitanian cover. Both the basement and cover were later involved in the Alpine accretion and strongly deformed by folds and thrusts during Eocene coinciding with underthrusting of the Alpujárride complex.…”

Section: Geological Settingmentioning

confidence: 99%

Curved fold‐and‐thrust accretion during the extrusion of a synorogenic viscous allochthonous sheet: The Estepa Range (External Zones, Western Betic Cordillera, Spain)

Pedrera¹,

Marín‐Lechado²,

Martos-Rosillo³

et al. 2012

Tectonics

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New structural, borehole, and time domain electromagnetic data allow us to reconstruct the 3‐D geometry of the Estepa range (External Zones of the Western Betic Cordillera), which constitutes an isolated curved fold‐and‐thrust range made up of Jurassic shallow marine carbonates and Cretaceous to Paleocene marls and marly limestones. Contraction and rising load linked to the accretion of the Subbetic nappe enhanced the expulsion of Triassic evaporites and overpressured clays during the early and middle Miocene, finally forming part of a highly deformed mélange unit. This plastic extrusion favored the disconnection of External and Middle Subbetic blocks, including the Sierra de Estepa Range. There, deformation is characterized by northwest‐vergent curved folds‐and‐thrusts associated with NE‐SW frontal ramps and NW‐SE lateral transfer faults that segmented the folds active between 18 and 12 Ma. At a local scale, curvature was achieved under a nearly uniform NW/WNW transport direction suggesting a primary arc type. Friction variation across the heterogeneous detached plastic basal Triassic unit mainly controlled the curvature and segmentation of the fold systems. Transport direction is consistent with previously published slip data from the Internal Subbetic and the Campo de Gibraltar units. After the Late Serravallian, accretion slowed down and a shallow marine unit deposited unconformably placed over the main thrust and folds. The sequence of deformation and emplacement of these ranges is interpreted as a continuous process linked to the early Miocene E continental collision of the Iberian margin thin continental crust and subduction of the Flysch trough oceanic crust beneath the Alboran continental domain.

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“…, 2009a). Palaeozoic rocks include turbidites and slates, with subordinate conglomerate, chert and pelagic limestone bearing conodonts, and make up part of two superimposed Variscan tectonic units with different Palaeozoic successions, assigned to the Ermita (lower) and Peña del Castillo (upper) units (Martín‐Algarra et al. , 2009b).…”

Section: Geological Settingmentioning

confidence: 99%

First Late Ordovician conodont fauna in the Betic Cordillera (South Spain): a palaeobiogeographical contribution

Rodríguez-Cañero

Martín‐Algarra

Sarmiento³

et al. 2010

Terra Nova

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Terra Nova, 22, 330–340, 2010 Abstract The youngest Ordovician conodont fauna in SW Europe has been found in the Malaguide Complex of the Betic Cordillera, SE Spain. It is also the first Ordovician conodont fauna in the Western Mediterranean Alpine Orogen. The conodont association, attributed to the Hirnantian (upper part of the Amorphognathus ordovicicus Biozone), is characterized by the predominance of Walliserodus amplissimus and Scabbardella altipes and by the absence of Sagittodontina and Istorinus, typical of the Mediterranean Province. This fauna differs markedly from those of the same biozone recorded in the Spanish Variscan Orogen of the Iberian Massif, which are attributed to the Katian. The Malaguide fauna shows, however, striking similarity to faunas of the Carnic Alps and some resemblance to those of the Pyrenees, Northern England and North Wales. These features suggest that Palaeozoic terranes of the Betic Cordillera were located far to the east of their present location and displaced westward during the Alpine Orogeny.

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Variscan Tectonics in the Malaguide Complex (Betic Cordillera, Southern Spain): Stratigraphic and Structural Alpine versus Pre‐Alpine Constraints from the Ardales Area (Province of Malaga). II. Structure

Cited by 21 publications

References 47 publications

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks

Curved fold‐and‐thrust accretion during the extrusion of a synorogenic viscous allochthonous sheet: The Estepa Range (External Zones, Western Betic Cordillera, Spain)

First Late Ordovician conodont fauna in the Betic Cordillera (South Spain): a palaeobiogeographical contribution

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Variscan Tectonics in the Malaguide Complex (Betic Cordillera, Southern Spain): Stratigraphic and Structural Alpine versus Pre‐Alpine Constraints from the Ardales Area (Province of Malaga). II. Structure

Cited by 21 publications

References 47 publications

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and 40 Ar– 39 Ar dating of Neogene volcanic rocks

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and 40 Ar– 39 Ar dating of Neogene volcanic rocks

Curved fold‐and‐thrust accretion during the extrusion of a synorogenic viscous allochthonous sheet: The Estepa Range (External Zones, Western Betic Cordillera, Spain)

First Late Ordovician conodont fauna in the Betic Cordillera (South Spain): a palaeobiogeographical contribution

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Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks

Constraints on the movement history of the Carboneras Fault Zone (SE Spain) from stratigraphy and ⁴⁰ Ar– ³⁹ Ar dating of Neogene volcanic rocks