Detrital zircon U-Pb ages in the Rif Belt (northern Morocco): Paleogeographic implications

Azdimousa, Ali; Jabaloy‐Sánchez, Antonio; Talavera, Cristina; Asebriy, L.; González-Lodeiro, Francisco; Evans, Noreen J.

doi:10.1016/j.gr.2018.12.008

Cited by 28 publications

(23 citation statements)

References 64 publications

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“…Detrital provenance analyses of these subbasins show source affinities with a Meso‐Mediterranean microplate (Mauretanian) and the African plate (Massylian) (Chiocchini et al, 1978; El Talibi et al, 2014; Guerrera et al, 2005; Thomas et al, 2010; Zaghloul et al, 2002, among others). However, differences in the provenance of detrital grains in different parts of the MFB, including the so‐called Mauretanian internal flysch units, have been recently questioned by Azdimousa et al (2019) based on detrital zircon U‐Pb age distributions. Detrital zircon ages in rocks from the External Rif and the MFB are very similar, suggesting both these domains were part of the NW African paleomargin (Azdimousa et al, 2019).…”

Section: Geological Settingmentioning

confidence: 99%

“…However, differences in the provenance of detrital grains in different parts of the MFB, including the so‐called Mauretanian internal flysch units, have been recently questioned by Azdimousa et al (2019) based on detrital zircon U‐Pb age distributions. Detrital zircon ages in rocks from the External Rif and the MFB are very similar, suggesting both these domains were part of the NW African paleomargin (Azdimousa et al, 2019).…”

Section: Geological Settingmentioning

confidence: 99%

“…The Mesorif subdomain mainly consists of allochthonous units made of Triassic‐middle Miocene successions overthrust onto parautochthonous units that include middle Miocene turbidites and olistostromes (e.g., Benzaggagh et al, 2014; El Mourabet et al, 2018; Gimeno‐Vives et al, 2019, 2020; Marçais, 1938; Michard et al, 2020). The deepest unit is the Temsamane unit, which crops out in the Eastern Rif (Figure 2) (Azdimousa et al, 2007, 2019; Frizon de Lamotte, 1985; Negro et al, 2007, 2008). It consists of basement rocks of the Eastern Meseta and its Mesozoic cover, affected by Alpine metamorphism to form a fold‐and‐thrust stack (Azdimousa et al, 2019).…”

Section: Geological Settingmentioning

confidence: 99%

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The Rif Chain (Northern Morocco) in the Late Tortonian‐Early Messinian Tectonics of the Western Mediterranean Orogenic Belt: Evidence From the Tanger‐Al Manzla Wedge‐Top Basin

et al. 2020

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During the Neogene, the Western Mediterranean subduction-related orogen developed under differing modes and senses of subduction, resulting in the formation of the Apennines, Maghrebides, Rif, and Betics. In this work, we present the Neogene kinematic evolution of the Rif, based on literature data and new results from structural-stratigraphic analyses and biostratigraphic investigations carried out in the External Zone of the Rif. We analyzed three stratigraphic sections: Dar Zhirou, Saf Lahmame, and Seguedla. The results of these analyses allow us to reconstruct a wide Tortonian-Messinian wedge-top basin in the Tanger-Al Manzla area, when the leading edge of the Rif was at the frontal thrust of the Prerif. The presence of this wedge-top basin points to a Tortonian-Messinian compressional deformation that affected a wide area of the Rif, including the Prerif, Mesorif, and Intrarif. The late Miocene compressional deformation that affected the Mesorif and Intrarif occurred as out-of-sequence thrusting, due to renewed compressional tectonics in the internal zone of the chain triggered by the collision of the Rif accretionary wedge with the North African Margin. In the Neogene evolution of the Western Mediterranean subduction-related orogen, the late Miocene was a major pulse in the interplay between African and European plates, as evidenced by the increase in migration rates of some segments of the circum-Mediterranean fold-and-thrust belt, the out-of-sequence thrusting in the Rif, as well as the occurrence of late Miocene imbricate thrust structures in oceanic fracture zones of the African Plate (Central Atlantic Ocean).

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Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

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The Rif Chain (Northern Morocco) in the Late Tortonian‐Early Messinian Tectonics of the Western Mediterranean Orogenic Belt: Evidence From the Tanger‐Al Manzla Wedge‐Top Basin

et al. 2020

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Section: Geological Settingmentioning

confidence: 99%

“…The Maghrebian flysch basin [10,54,55] corresponds to the Meso-Cenozoic deep marine southern branch of the Maghrebian Tethys, which was connecting the Alpine oceans with the central Atlantic from the Jurassic up to the Miocene [47,[55][56][57]. The Maghrebian flysch basin is subdivided into internal Mauretanian and external Massylian Domains (Figure 3, [58][59][60]). The transition between the two sub-domains is differentiated in the Oligocene-Lower Miocene sediments, where the Mauretanian Beni Ider turbidites evolve laterally to the Massylian Numidian sandstones through mixed successions [63][64][65].…”

Section: Geological Settingmentioning

confidence: 99%

Validating Structural Styles in the Flysch Basin Northern Rif (Morocco) by Means of Thermal Modeling

et al. 2020

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Vitrinite reflectance and a micro-Raman spectroscopy parameters data set have been acquired on dispersed organic matter of the Maghrebian flysch basin and the Tangiers unit across a NE-SW section in the north-western Rif belt (North Morocco). Thermal maturity shows increasing values from the hinterland to the external unit (from NE to SW). Paleo-thermal indicators show that the internal flysch basin (i.e., the Mauretanian unit) is less mature than the external one, (i.e., the Massylian unit), with Ro% and Ro eq. Raman values ranging from 0.64% to 1.02% (from early mature to late mature stages of hydrocarbon generation). 1D thermal modeling estimates the overburden now totally eroded ranging from 3.1 km to 6.0 km, and has been used as constraint to reconstruct the complete thrust wedge geometry in Miocene times. The reconstructed geometry accounts for high shortening (about 63%) due to the development of an antiformal stack in the frontal part of the wedge made up by the flysch succession. This stacking is interpreted as a consequence of the western translation of the Alboran Domain in the core of the Betic-Rif orogenic system.

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A zircon classification scheme for sedimentary provenance analysis using radiation damage

et al. 2023

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Detrital single‐grain zircon U–Pb geochronology is a powerful tool for provenance studies if information on the source rocks is available. This paper proposes a new source‐rock classification tool that uses the degree of annealing of radiation damage in detrital zircon; the annealing is expressed by the relationship between the width (full‐width at half‐maximum; FWHM) of the v3[SiO4] Raman band at ~1008 cm−1 and the calculated α‐dose. The host rocks of the zircons are classified into three types according to their emplacement process and/or thermal history: volcanic and rapidly cooled plutonic and high‐grade metamorphic rocks (type 1); rocks with hydrothermal zircons (type 2); slowly cooled igneous and metamorphic rocks (type 3). We construct a naive Bayes prediction model by training it with a collection of zircons of known types. The unknown zircons are assigned a probability of derivation from a specific host‐rock type. This classification scheme is best used as an accessory tool in provenance studies that apply detrital zircon U–Pb geochronology.

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Detrital zircon U-Pb ages in the Rif Belt (northern Morocco): Paleogeographic implications

Cited by 28 publications

References 64 publications

The Rif Chain (Northern Morocco) in the Late Tortonian‐Early Messinian Tectonics of the Western Mediterranean Orogenic Belt: Evidence From the Tanger‐Al Manzla Wedge‐Top Basin

The Rif Chain (Northern Morocco) in the Late Tortonian‐Early Messinian Tectonics of the Western Mediterranean Orogenic Belt: Evidence From the Tanger‐Al Manzla Wedge‐Top Basin

Validating Structural Styles in the Flysch Basin Northern Rif (Morocco) by Means of Thermal Modeling

A zircon classification scheme for sedimentary provenance analysis using radiation damage

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