New insights on the Alboran Sea basin extension and continental collision from magnetic anomalies related to magmatism (western Mediterranean)

Tendero-Salmerón, Víctor; Galindo-Zaldı́var, Jesús; d’Acremont, Elia; Catalán, Manuel; Martos, Yasmina M.; Ammar, Abdellah; Ercilla, Gemma

doi:10.1016/j.margeo.2021.106696

Cited by 7 publications

(3 citation statements)

References 75 publications

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“…The second episode shows a dextral deformation system mainly driven by N120 • E combined with sinistral N25 • E faults under NW-SE-to-NNW-SSE compression. These results confirm the deformation model observed in the Western Mediterranean [39,[85][86][87].…”

Section: Overprinting Of Tortonian and Messinian Episodes: Evolution ...supporting

confidence: 90%

The Neotectonic Deformation of the Eastern Rif Foreland (Morocco): New Insights from Morphostructural Analysis

Makkaoui,

Azzouz,

Tendero-Salmeron

et al. 2024

Applied Sciences

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The Rif Cordillera, an Alpine orogen in the Western Mediterranean, was developed by the interaction of Eurasian and African (Nubia) plates. Neotectonic deformations of the Rif foreland influence the relief, especially in post-nappe basins and their boundaries with Jurassic and Cretaceous carbonate mountain massifs, and they contribute to highlighting the recent evolution of the Cordillera. The topographic and hydrological lineaments of these basins were characterised on the basis of multi-scale morphostructural data analysis, supported by digital mapping and GIS. They were correlated with geological structures, essentially with fractures. The outcrops of the Upper Tortonian and Messinian deposits depict well-defined geometric shapes with roughly rectilinear boundaries, as defined by their contacts with the massive and rigid rocks of the Jurassic and Cretaceous series. Upper Tortonian deposits evidence major regional N70°E and N40°E lineaments, which are obliquely intersected by late structures. Messinian N120°E and N25°E lineaments, associated with N140°E lineaments, are also recognised. The interpretation of these lineaments as faults indicates the activity of two systems of transtensive sinistral and then dextral brittle shearing that correspond to two episodes of neotectonic deformation that played a decisive role in shaping the reliefs of the Eastern Rif. These deformations are particularly relevant to isolate basins and likely have a key role during the closure of the South Rifian corridor during the Mediterranean Messinian Salinity crisis.

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Section: Overprinting Of Tortonian and Messinian Episodes: Evolution ...supporting

confidence: 90%

The Neotectonic Deformation of the Eastern Rif Foreland (Morocco): New Insights from Morphostructural Analysis

Makkaoui,

Azzouz,

Tendero-Salmeron

et al. 2024

Applied Sciences

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“…The crustal heterogeneities [165] could be responsible for the development of this compressional front. Meanwhile, active indentation tectonics have affected the Alboran Sea [36,166,167], reaching the Iberian coast [101]. The compressions due to the active indentor form a fixed boundary and stop the southward directed collapse, producing well-developed E-W to ENE-WSW folds onshore and offshore in the Campo de Dalías (Figure 6b) [24].…”

Section: Extensional Collapse In the Central Betic Cordilleramentioning

confidence: 99%

Active Collapse in the Central Betic Cordillera: Development of the Extensional System of the Granada Basin

et al. 2023

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The Betic Cordillera was formed by the collision between the Alboran Domain and the South Iberian paleomargin in the frame of the NW–SE convergent Eurasia–Nubia plate boundary. The central region is undergoing a heterogeneous extension that has not been adequately analysed. This comprehensive study addressed it by collecting structural geologic, seismologic, and geodetic data. The region west of the Sierra Nevada is deformed by the extensional system of the Granada Basin, which facilitates E–W to NE–SW extension. Moreover, the southern boundary of Sierra Nevada is affected by a remarkable N–S extension related to E–W normal to normal–dextral faults affecting the shallow crust. However, geologic and geodetic data suggest that the western and southwestern Granada Basin boundary constitutes a compressional front. These data lead to the proposal of an active extensional collapse from the uplifted Sierra Nevada region to the W–SW–S, over an extensional detachment. The collapse is determined by the uplift of the central Betics and the subsidence in the Alboran Basin due to an active subduction with rollback. Our results indicate that the central Betic Cordillera is a good example of ongoing extensional collapse in the general context of plate convergence, where crustal thickening and thinning simultaneously occur.

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“…There are a variety of geodynamic models proposing different evolutionary scenarios of the Betic‐Atlas‐Rif system and the Alboran Basin, including those involving delamination of subducted continental mantle lithosphere, rollback of the western Mediterranean subduction system and fragmentation and westward indentation of the Alboran domain (De la Peña et al., 2021; Diaz et al., 2021). The eastern Betic are subjected to the indentation of the Alboran Domain, in which kinematics and tectonic fabric are differentiated from the Iberian lithosphere (Palano et al., 2015; Tendero‐Salmerón et al., 2022). The structure of the lithosphere in the eastern Betic is characterized by the presence of two contrasting types, namely the Iberian and the Alboran types, as has been evidenced in numerous geophysical studies (e.g., Banda & Ansorge, 1980; Banda et al., 1993; Carbonell et al., 1995; García‐Dueñas et al., 1994).…”

Section: Geological Settingmentioning

confidence: 99%

Exploring the Connection of XVI‐Century Major Historical Earthquakes in the Eastern Betic Cordillera, Spain: Insights From Viscoelastic Relaxation of the Lithosphere

Yazdi,

García‐Mayordomo,

Álvarez‐Gómez

et al. 2023

Tectonics

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Understanding the crustal fault interaction and connection between earthquakes in areas with slow tectonic deformation, such as Betic Cordillera (South Spain), is challenging. When seismic rates are low and large destructive earthquakes happen less frequently, it is necessary to resort to historical or paleoseismic records. This study investigates the postseismic viscoelastic relaxation mechanism as a potential explanation for the occurrence of three historical earthquakes (IEMSVIII‐IX) in the Eastern Betic Shear Zone during the XVI‐century, all of which occurred within a span of 13 years: 1518 Vera Mw6.2, 1522 Alhama de Almeria Mw6.5, and 1531 Baza Mw6.2 associated with the Palomares, Carboneras, and Baza faults, respectively. The results strongly suggest a sequential stress‐triggering connection between the three events. The northern NS‐oriented section of the Baza fault is found to have experienced a larger positive ΔCFS and, indeed, more prone to rupture in 1531. The study also examines whether the cumulative ΔCFS had influenced the occurrence of further significant earthquakes (≥Mw6.0) in the region. A triggering connection between the cascade and the 1658 Almeria Mw6.2 earthquake is suggested, whereas no indications of similar linkage to the 1674 Lorca Mw6.0 or the 1804 Dalias Mw6.4 events are found. The stress triggering impact of the cascade over nearby active faults is noteworthy. It is expected that this analysis could have future applications for studying other important historical events, and improving seismic hazard analysis in complex fault settings of the Betic Cordillera.

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New insights on the Alboran Sea basin extension and continental collision from magnetic anomalies related to magmatism (western Mediterranean)

Cited by 7 publications

References 75 publications

The Neotectonic Deformation of the Eastern Rif Foreland (Morocco): New Insights from Morphostructural Analysis

The Neotectonic Deformation of the Eastern Rif Foreland (Morocco): New Insights from Morphostructural Analysis

Active Collapse in the Central Betic Cordillera: Development of the Extensional System of the Granada Basin

Exploring the Connection of XVI‐Century Major Historical Earthquakes in the Eastern Betic Cordillera, Spain: Insights From Viscoelastic Relaxation of the Lithosphere

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