Reply to the comment by A. G. Jones et al. on “Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism”

Anahnah, Farida; Galindo-Zaldı́var, Jesús; Chaloüan, Ahmed; Pedrera, Antonio; Ruano, Patricia; Pous, J.; Heise, Wiebke; Ruíz-Constán, Ana; Benmakhlouf, M.; López-Garrido, A. C.; Ahmamou, M.; Galdeano, Carlos Sanz de; Arzate, Jorge; Ibarra, P.; González-Castillo, Lourdes; Bouregba, N.; Corbo, Fernando; Asensio, Eva

doi:10.1029/2012tc003116

Cited by 3 publications

(15 citation statements)

References 34 publications

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“…Finally, in their re‐revised Reply, Anahnah et al [2012] present a new model that is substantially different in many features from that presented in the original paper [ Anahnah et al , 2011]. Primarily, the new model appears to be smoother than the older one.…”

Section: Modelingmentioning

confidence: 89%

“…In their Reply, Anahnah et al [2012] refer to numerical experiments published by Berdichevsky and Pokhotelov [1997] as an example of violation of the dispersion relations. That somewhat obscure paper, discussed by Berdichevsky [1999] and also Berdichevsky and Dmitriev [2008, pp.…”

Section: Discussionmentioning

confidence: 99%

“…It is puzzling that to justify their choice of geoelectric strike, Anahnah et al [2012]state that “the main geological features are in general ENE‐WSW (N80°E) trending, particularly in the High Atlas, the region of greatest interest.” The dominant tectonic feature along the profile in terms of its electrical response is the Middle Atlas, not the High Atlas. The Middle Atlas is the location of the middle and deep strong crustal conductor beneath their Sites 10–12, and the Middle Atlas has a tectonic strike of NE‐SW, consistent with our own adopted crustal geoelectric strike of N50°E.…”

Section: Geoelectric Strikementioning

confidence: 99%

“… Anahnah et al [2012] in their Reply include a new figure of induction vectors. If an upper mantle conductor existed between their sites 10 to 16, as shown in Anahnah et al 's [2011] Figures 4 and 5c, then the induction vectors on resistive mantle at the neighboring sites, Sites 5–9 to the north and Sites 17–21 to the south, would be pointing toward this anomalous region, i.e., the induction vectors at Sites 5–9 would point to the south, and at Sites 17–21 to the north, and this behavior they clearly do not exhibit.…”

Section: Modelingmentioning

confidence: 99%

“…None of these model space exploration or model resolution tests are undertaken by Anahnah et al [2011]. None of these issues are discussed or explained by Anahnah et al [2012].…”

Section: Model Appraisalmentioning

confidence: 99%

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

et al. 2012

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Section: Modelingmentioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Geoelectric Strikementioning

confidence: 99%

Section: Modelingmentioning

confidence: 99%

“…None of these model space exploration or model resolution tests are undertaken by Anahnah et al [2011]. None of these issues are discussed or explained by Anahnah et al [2012].…”

Section: Model Appraisalmentioning

confidence: 99%

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

et al. 2012

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Mega‐scale Moho relief and the structure of the lithosphere on the eastern flank of the Viking Graben, offshore southwestern Norway

et al. 2015

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The International Lithosphere Project deep reflection seismic survey in the Norwegian sector of the North Sea has been reprocessed, particularly focusing on the deep crust, the reflection Moho, and the upper mantle. The data display shifting reflection patterns of the crust and the upper mantle parallel to the eastern margin of the Viking Graben. In the upper crust, which is mainly seismically transparent by the processing techniques utilized here, large-scale structural features like detachment shear zones and master faults can be identified. Several of the major onshore faults and shear zones match seismic features in the seismic lines. Many of these structures acted as extensional shear zones in the Devonian. The middle crust is of variable reflectivity, whereas the lower crust is generally strongly reflective and is particularly so in the southern domain. The reflection Moho is identified throughout the study area but is of variable character. The presence of a S(E) dipping structure (Hardanger Moho Offset) that displaces the Moho by approximately 10 km, extends deep into the mantle (below the 50 km line depth), is positioned where the shallower Hardangerfjord Shear Zone, which flattens on the level of the middle crust, is situated. The Hardangerfjord Shear Zone/Hardanger Moho Offset-system coincides with change of the crustal thickness (depth to Moho), a change that also coincides with the transition from thin-to thick-skinned Caledonian deformation. Intramantle reflections are common in the study area, some of which are interpreted as shear zones, whereas others most likely represent magmatic intrusions.

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Recent uplift of the Atlantic Atlas (offshore West Morocco): Tectonic arch and submarine terraces

et al. 2017

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Re-examination of marine geophysical data from the continental margin of West Morocco reveals a broad zone characterized by deformation, active faults and updoming offshore the High Atlas (Morocco margin), situated next to the Tafelney Plateau. Both seismic reflection and swath-bathymetric data, acquired during Mirror marine geophysical survey in 2011, indicate recent uplift of the margin including uplift of the basement. This deformation, which we propose to name the Atlantic Atlas tectonic arch, is interpreted to result largely through uplift of the basement, which originated during the Central Atlantic rifting stage-or even during phases of Hercynian deformation. This has produced a large number of closely spaced normal and reverse faults, "piano key faults", originating from the basement and affecting the entire sedimentary sequence, as well as the seafloor. The presence of four terraces in the Essaouira canyon system at about 3500 m water depth and "piano key faults" and the fact that these also affect the seafloor, indicate that the Atlantic Atlas is still active Highlights ► A tectonic arch called "Atlantic Atlas" has been identified offshore the High Atlas. ► The Atlantic Atlas is still active. ► Four submarine terraces are identifiable in Atlantic Atlas (offshore Essaouira). ► The recent uplift is causing morphogenesis of four terraces.

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Reply to the comment by A. G. Jones et al. on “Deep resistivity cross section of the intraplate Atlas Mountains (NW Africa): New evidence of anomalous mantle and related Quaternary volcanism”

Cited by 3 publications

References 34 publications

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

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

Mega‐scale Moho relief and the structure of the lithosphere on the eastern flank of the Viking Graben, offshore southwestern Norway

Recent uplift of the Atlantic Atlas (offshore West Morocco): Tectonic arch and submarine terraces

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