Late Miocene to present-day exhumation and uplift of the Internal Zone of the Rif chain: Insights from low temperature thermochronometry and basin analysis

Romagny, Adrien; Münch, Philippe; Cornée, Jean‐Jacques; Corsini, Michel; Azdimousa, Ali; Melinte‐Dobrinescu, Mihaela Carmen; Drinia, Hara; Bonno, Michaël; Arnaud, Nicolas; Monié, Patrick; Quillévéré, Frédéric; Moussa, Abdelkhalak Ben

doi:10.1016/j.jog.2014.01.006

Cited by 22 publications

(19 citation statements)

References 74 publications

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“…These ages are similar to those obtained by previous authors in the internal Rif (Elbaghdadi et al, 1996;Michard et al, 2006;Rossetti et al, 2010;Homonnay et al, 2018) and also in the Betics where similar granitic dykes intruded the Ronda peridotites (Priem et al, 1979;Zeck et al, 1989;Cuevas et al, 2006). (U-Th)/He and apatite fission track ages obtained on crustal rocks from the internal Rif are comprised between 17.8 and 14.1 Ma, suggesting that the exhumation in the Alboran Domain continues to develop after 21 Ma (Azdimousa, 1999;Azdimousa et al, 2014;Romagny, 2014;Romagny et al, 2014).…”

Section: Geochronological Evolutionsupporting

confidence: 79%

“…Indeed, as suggested by Romagny et al (2014), faults acting under brittle conditions with similar direction as the Aaraben fault are responsible for the present-day uplift of the internal Rif. Moreover, Chalouan et al (1995) described a vertical displacement of 4-5 km since the Neogene along the Aaraben fault.…”

Section: Structural Evolutionmentioning

confidence: 85%

“…However thermal modeling using (U-Th)/He apatite data, 40 Ar/ 39 Ar and K/Ar data on biotite, zircon, and apatite fission track highlights that the rocks suffered a rapid to moderate cooling between 22.5 and 18 Ma, a re-heating between 18 and 15 Ma, then a rapid cooling and an exhumation to the surface at around 13 Ma (Azdimousa et al, 2014;Romagny et al, 2014). These authors interpreted the re-heating during the late Burdigalian-Early Langhian as a renewal in thrusting and burying of the internal units during a compressional event (back-thrusting).…”

Section: Geochronological Evolutionmentioning

confidence: 99%

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Neogene polyphase deformation related to the Alboran Basin evolution: new insights for the Beni Bousera massif (Internal Rif, Morocco)

Bakili¹,

Corsini²,

Chaloüan³

et al. 2020

BSGF - Earth Sci. Bull.

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Located in the Internal domain of the Rif belt, the Beni Bousera massif is characterized by a stack of peridotites and crustal metamorphic units. The massif is intruded by granitic dykes and affected by several normal ductile shear zones. Structural, petrological and 40 Ar-39 Ar dating analyses performed on these two elements highlight that (1) the granitic dykes are emplaced within major N70°to N140°trending normal faults and shear zones, resulted from an NNE-SSW extension (2) the Aaraben fault in its NE part is characterized by N70°to N150°trending ductile normal shear zones, resulted from a nearly N-S extension and (3) the age of this extensional event is comprised between 22 and 20 Ma. Available paleomagnetic data allow a restoration of the initial orientation of extension, which was nearly E-W contemporary with the Alboran Basin opening in back-arc context, during the Early Miocene. At the onset of the extension, the peridotites were somehow lying upon a partially melted continental crust, and exhumed during this event by the Aaraben Normal Shear Zone. Afterward, the Alboran Domain suffered several compressional events.

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Section: Geochronological Evolutionsupporting

confidence: 79%

Section: Structural Evolutionmentioning

confidence: 85%

Section: Geochronological Evolutionmentioning

confidence: 99%

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Neogene polyphase deformation related to the Alboran Basin evolution: new insights for the Beni Bousera massif (Internal Rif, Morocco)

Bakili¹,

Corsini²,

Chaloüan³

et al. 2020

BSGF - Earth Sci. Bull.

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“…Otherwise, the persistence of Cedrus in Southern Spain during the late Pleistocene is still debated Joannin et al, 2011;Alba-Sánchez et al, 2018). Once established in Morocco, Cedrus was helped by the uplifting Rif Mountains that peaked during the Pliocene (Romagny et al, 2014) and led, at mid to high altitude, to wetter and cooler climatic conditions more suitable for this conifer. Cedrus atlantica was probably saved from extinction by its migration from Europe to North Africa which offered new habitats protecting it from the forthcoming glacials (figure 10), especially from those of the late Pleistocene which decimated the European cedar populations and made the North African ones highly unstable (Cheddadi et al, 2009).…”

Section: Resultsmentioning

confidence: 99%

Reconstruction of Mediterranean flora, vegetation and climate for the last 23 million years based on an extensive pollen dataset

Suc¹,

Popescu²,

Fauquette³

et al. 2018

ecmed

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Subtropical evergreen forests left room for Mediterranean sclerophyllous communities, and finally to Artemisia steppes which alternated with mesophilous forests during glacial-interglacial cycles. The South Mediterranean plant ecosystems contrasted with open subdesertic associations where Avicennia persisted up to the early Pliocene before the steppes invaded the lowlands. Neogene climate changes benefited the Mediterranean sclerophyllous plants that were already present in the early Miocene. Their subsequent fluctuations relate not only to temperature variations but maybe also to phases with high instability in seasonality and low variability in warmth. When present, Microtropis fallax is a serious candidate for identifying the primary Mediterranean sclerophyllous assemblages. Interpretation and climate quantification of the pollen data show a well-marked latitudinal contrast in the Mediterranean area both in temperature and humidity/dryness. The thermic latitudinal gradient is characterized

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“…1 and 15), but stopped its activity before the Pliocene (Benmakhlouf et al, 2012). The passive infilling of paleo-ria indicates relatively low vertical motion (Romagny et al, 2014). After 3.8 Ma, a transition from compression to radial extension (Benmakhlouf et al, 2012) causes NE-SW normal faulting in this region and produced a tectonic tilting of the Moroccan margin ( Fig.…”

Section: Mio-pliocene To Early Quaternary Strain Partitioningmentioning

confidence: 96%

Plio-Quaternary tectonic evolution of the southern margin of the Alboran Basin (Western Mediterranean)

Lafosse¹,

d’Acremont²,

Rabaute³

et al. 2019

Preprint

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Abstract. Progresses in understanding the sedimentary dynamic of the Western Alboran Basin lead us to propose a model of evolution of its tectonic inversion since the Pliocene to present-time. Extensive and strike-slip structures accommodate the Miocene back-arc extension of the Alboran Basin, but undergo progressive tectonic inversion since the Tortonian. Across the Alboran Basin, the Alboran Ridge becomes a transpressive structure accommodating the shortening. We map its southwestern termination: a Pliocene rhombic structure exhibiting series of folds and thrusts. A younger structure, the Al-Idrissi fault zone (AIF), is Pleistocene to present-day active strike-slip fault zone. This fault zone crosses the Alboran Ridge and connects southward to the transtensive Nekor Basin and the Nekor fault. In the Moroccan shelf and at the edge of a submerged volcano, we date the inception of the local shelf subsidence from the 1.81–1.12 Ma. It marks the propagation of the AIF toward the Nekor Basin. Pliocene thrusts and folds and Quaternary transtension appear at first sight as different tectonic periods but reflects the long-term evolution of a transpressive system. Despite a constant direction of Africa/Eurasia convergence since 5 Ma at the scale of the southern margin of Alboran Basin, the Pliocene-Quaternary inversion evolves from transpressive to transtensive on the AIF and the Nekor Basin. This system reflects the expected evolution of the deformation of the Alboran Basin under the indentation of the African lithosphere.

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Late Miocene to present-day exhumation and uplift of the Internal Zone of the Rif chain: Insights from low temperature thermochronometry and basin analysis

Cited by 22 publications

References 74 publications

Neogene polyphase deformation related to the Alboran Basin evolution: new insights for the Beni Bousera massif (Internal Rif, Morocco)

Neogene polyphase deformation related to the Alboran Basin evolution: new insights for the Beni Bousera massif (Internal Rif, Morocco)

Reconstruction of Mediterranean flora, vegetation and climate for the last 23 million years based on an extensive pollen dataset

Plio-Quaternary tectonic evolution of the southern margin of the Alboran Basin (Western Mediterranean)

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