Deep-rooted âthick skinnedâ model for the High Atlas Mountains (Morocco). Implications for the seismic Eurasia-Africa plate boundary region

Harfi, A. G. El; Guiraud, Michel; Lang, J.; Chellaı̈, El Hassane; Lachkar, Nadifa

doi:10.3989/egeol.07631188

Cited by 3 publications

(1 citation statement)

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“…This setting has attracted many seismological [ Seber et al , 1996; El‐Harfi et al , 2007], gravity [ Van den Bosch , 1971; Ayarza et al , 2005] or integrated modeling researchers [ Zeyen et al 2005; Teixell et al , 2005; Missenard et al , 2006], with new data acquired as recently as 2010 [e.g., Kiyan et al , 2010]. The High Atlas relief features are related to an anomalous mantle in addition to moderate shortening.…”

Section: Introductionmentioning

confidence: 99%

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

et al. 2011

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[1] The Atlas Mountains are characterized by high elevations and Quaternary volcanism. Long period magnetotelluric data acquired along a NNW-SSE transect reveal the presence of a conductive anomalous mantle below the High Atlas. Data dimensionality analyses show a preferent N80°E strike of the deep resistivity structure in agreement with the induction vector alignment at long periods. Accordingly, a 2D inversion of the data set was carried out. Large resistive bodies at the crustal basement most likely correspond to batholiths emplaced in more conductive metapelites. They are covered by outcropping conductive sedimentary detritic and carbonate rocks. Lithospheric thinning producing anomalous mantle and basin development in the Atlas probably started during Triassic-Jurassic rifting. Inversion tectonics since the Oligocene produced low shortening on previous lithospheric weak zones, with thrusting of the Atlas above the stable African plate. Melting at the top of the anomalous mantle is connected with Quaternary basaltic volcanism in the Middle Atlas.

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Section: Introductionmentioning

confidence: 99%

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

et al. 2011

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Kinematics of Structures and Basin Evolution in the Central High Atlas. Constraints from AMS and Paleomagnetic Data

et al. 2023

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Evolution of the Atlasic Domain During the Alpine Cycle in the Broader Sense: General Outline of the Evolution of the Tethys

Chellai,

Youbi,

Bamiki

et al. 2024

Regional Geology Reviews

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Deep-rooted âthick skinnedâ model for the High Atlas Mountains (Morocco). Implications for the seismic Eurasia-Africa plate boundary region

Cited by 3 publications

References 45 publications

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

Kinematics of Structures and Basin Evolution in the Central High Atlas. Constraints from AMS and Paleomagnetic Data

Evolution of the Atlasic Domain During the Alpine Cycle in the Broader Sense: General Outline of the Evolution of the Tethys

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Deep-rooted âthick skinnedâ model for the High Atlas Mountains (Morocco). Implications for the seismic Eurasia-Africa plate boundary region

Cited by 3 publications

References 45 publications

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism

Kinematics of Structures and Basin Evolution in the Central High Atlas. Constraints from AMS and Paleomagnetic Data

Evolution of the Atlasic Domain During the Alpine Cycle in the Broader Sense: General Outline of the Evolution of the Tethys

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Product

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Deep-rooted âthick skinnedâ model for the High Atlas Mountains (Morocco). Implications for the seismic Eurasia-Africa plate boundary region