Late Neogene depositional sequences in the foreland basin of Guadalquivir (SW Spain)

Sierro, Francisco J.; Delgado, José Ángel González; Dabrio, Cristino J.; Flores, José Abel; Civis, Jorge

doi:10.1017/cbo9780511524851.048

Cited by 61 publications

(121 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3). This bed is also present in onland sections and has been interpreted as the transgressive deposits formed during the early Pliocene (Sierro and Flores, 1992;Sierro et al, 1996). Nonetheless, this deepening did not exceed the early…”

mentioning

confidence: 87%

“…There are papers dealing with the biochronology of the late Neogene deposits filling the Guadalquivir Basin (Viguier, 1974;Perconig, 1973;Perconig and Granados, 1973;Sierro, 1985;Aguirre et al, 1995;Sierro et al, 1996) and with the tectonostratigraphic framework (Sierro et al, 1996;Riaza and Martínez del Olmo, 1996). However, the available studies on the Messinian paleoenvironmental evolution of the basin are scarce Gläser and Betzler, 2002).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

“…This basin was filled with marine and continental sediments ranging from the early Tortonian to the late Pliocene (Roldán, 1995;Aguirre et al, 1995;Sierro et al, 1996;González-Delgado et al, 2004). The sedimentary infilling produced a migration of the depocentre approximately along the longitudinal axis of the basin, from the ENE to the WSW.…”

Section: Study Areamentioning

confidence: 99%

“…The sedimentary infilling produced a migration of the depocentre approximately along the longitudinal axis of the basin, from the ENE to the WSW. This sedimentary succession has been divided into five depositional sequences (A-E) that have been correlated with third-order cycles of the Haq et al (1987) global sea-level curve (Sierro et al, 1996).…”

Section: Study Areamentioning

confidence: 99%

See 3 more Smart Citations

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Pérez-Asensio

Aguirre

Schmiedl

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

Benthic foraminiferal assemblages of a drill core from the lower Guadalquivir Basin (northern Gulf of Cádiz, SW Spain) have been analysed in order to reconstruct the paleoenvironmental evolution in the vicinity of the Betic seaways during the Messinian. The core consists of marine sediments ranging from the latest Tortonian to the early Pliocene. Changes in the abundance of certain marker species, planktonic/benthic ratio (P/B ratio), paleodepth estimated with a transfer function, content of sand grains and presence of glauconitic layers indicate a complete transgressive-regressive sea-level cycle from the bottom to the top of the section. An abrupt sea-level rise, from inner-middle shelf to middle slope, is recorded at the lowermost part of the core (latest Tortonian-earliest Messinian), followed by a relatively rapid shallowing from middle slope to outer shelf. Magnetobiostratigraphic data show These assemblages are dominated by Nonion fabum and Bulimina elongata, two taxa that are able to feed from continental low-quality organic matter, most likely derived from river run-off. The paleoenviromental evolution on the Atlantic side of Betic and Rifian seaways is similar during the Messinian, with a Messinian continuous sea-level lowering driven by regional tectonic uplift and upwelling-related waters reaching the upper slope. This study will further contribute to understand the role of tectonics on the sea-level changes as well as on the closure of the Atlantic-Mediterranean gateways that led to the MSC, and on the paleoceanography on the Atlantic sides of these corridors.

show abstract

mentioning

confidence: 87%

Section: Accepted M Manuscriptmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

See 2 more Smart Citations

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Pérez-Asensio

Aguirre

Schmiedl

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

View full text Add to dashboard Cite

show abstract

“…That is soon after the tectonic closure of the North Betic Corridor in the east and the consequent severing of marine communication between the remaining Guadalquivir Basin and the Western Mediterranean. This fragmentation of the basin was caused by thrust spreading in the region of the contemporaneously rising Western Prebetic (Sierro et al, 1996). In addition to deformation due to compressional stress, the progressive foreland surface loading of the polyphase Betic nappe stack onto the South Iberian lithospheric plate caused bending of the lithosphere and load-induced subsidence of the Guadalquivir Basin.…”

mentioning

confidence: 99%

Punctuated Neogene tectonics and stratigraphy of the African-Iberian plate-boundary zone: concurrent development of Betic-Rif basins (southern Spain, northern Morocco)

Sissingh

2008

Netherlands Journal of Geosciences

View full text Add to dashboard Cite

The geological configuration of the present-day Mediterranean is characterized by a complex and extensive system of both interconnected and fragmented fold-and thrust belts that is associated with back-arc basins (e.g. Carminati et al., 1998;Rosenbaum & Lister, 2004). Their tectonic structure and setting are varied, and the compressional origin and growth of the different belts and the formation of the adjoining extensional basins also varies considerably in age. The different fold-andthrusts belts did not evolve during one single, uninterrupted cycle of Alpine orogenesis, but are the ultimate outcome of a prolonged, polyphase process of intermittent plate-tectonic interaction between the African-Arabian and Eurasian plates. This resulted in the creation and ultimate disappearance of two major oceanic basins, the Palaeotethys (mainly Palaeozoic) and the Neotethys (late Palaeozoic-Mesozoic). As in the preceding Jurassic and Cretaceous times, the motions of Africa-Arabia relative to Eurasia during the Tertiary were an important control on the geological evolution of the Alpine Tethys (late Mesozoic-Tertiary). Various kinematic frameworks for palaeotectonic and palaeogeographic reconstructions have been proposed for the region (e.g. Dewey et al., 1989;Rosenbaum et al., 2002). These were mostly based on analysis of rotation parameters (poles of rotation, rotation angles), which allowed to constrain past relative velocities between Africa and Eurasia. In addition, analysis of North Atlantic magnetic lineations helped to constrain the movement of Africa and Europe relative to North America. The consensus view is that during the Late Cretaceous Africa converged towards Europe in a S-N directed rotational mode. This was contemporaneous with spreading of the Azores part of the North Atlantic, the coeval opening of the Gulf of Biscay like a sphenochasm and the resulting anti-clockwise rotation of Iberia with respect to Eurasia. Sinistral motion occurred after an active plate boundary subject to left-lateral strike-slip faulting had been established at the northern margin of the Iberian block. Consequently, Iberia behaved like a promontory AbstractThis paper integrates the sequence stratigraphic and tectonic data related to the Neogene geodynamic and palaeogeographic development of the African-Iberian plate boundary zone between Spain and Morocco. Though the dating of individual tectonostratigraphic sequences and their delimiting sequence boundaries varies in accuracy and precision, their apparent correlation strongly suggests contemporaneous development of the Betic and Rif basins. This may likely be attributed to regional changes of the overall compressional intra-plate stress field. This, in turn, was governed by coeval plate-kinematic changes related to the ongoing collisional convergence of Africa and Iberia. The Neogene succession is characterised by brief tectonic pulses that governed the sequence stratigraphic development of the Betic-Rif basins (NBR phases). It broadly correlates with the coeval sequences in the ...

show abstract

Seismic transpressive basement faults and monocline development in a foreland basin (Eastern Guadalquivir, SE Spain)

et al. 2013

View full text Add to dashboard Cite

We examine the late Tortonian to present‐day deformation of an active seismic sector of the eastern Iberian foreland basement of the Betic Cordillera, in southern Spain. Transpressive faults affecting Paleozoic basement offset up to Triassic rocks. Late Triassic clays and evaporites constitute a décollement level decoupling the basement rocks and a ~100 m thick cover of Jurassic carbonates. Monoclines trending NE‐SW to ENE‐WSW deform the Jurassic cover driven by the propagation of high‐angle transpressive right‐lateral basement faults. They favor the migration of clays and evaporites toward the propagated fault tip, i.e., the core of the anticline, resulting in fluid overpressure, fluid flow, and precipitation of fibrous gypsum parallel to a vertical σ3. The overall geometry of the studied monoclines, as well as the intense deformation within the clays and evaporites, reproduces three‐layer discrete element models entailing a weak middle unit sandwiched between strong layers. Late Tortonian syn‐folding sediments recorded the initial stages of the fault‐propagation folding. Equivalent unexposed transpressive structures and associated monoclines reactivated under the present‐day NW‐SE convergence are recognized and analyzed in the Sabiote‐Torreperogil region, using seismic reflection, gravity, and borehole data. A seismic series of more than 2100 low‐magnitude earthquakes was recorded within a very limited area of the basement of this sector from October 2012 to May 2013. Seismic activity within a major NE‐SW trending transpressive basement fault plane stimulated rupture along a subsidiary E‐W (~N95°E) strike‐slip relay fault. The biggest event (mbLg 3.9, MW 3.7) occurred at the junction between them in a transpressive relay sector.

show abstract

Late Neogene depositional sequences in the foreland basin of Guadalquivir (SW Spain)

Cited by 61 publications

References 0 publications

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Punctuated Neogene tectonics and stratigraphy of the African-Iberian plate-boundary zone: concurrent development of Betic-Rif basins (southern Spain, northern Morocco)

Seismic transpressive basement faults and monocline development in a foreland basin (Eastern Guadalquivir, SE Spain)

Contact Info

Product

Resources

About