Tectonics of the Anti-Atlas of Morocco

Burkhard, Martin; Caritg, Séverine; Helg, Urs; Robert-Charrue, Charles; Soulaı̈mani, Abderrahmane

doi:10.1016/j.crte.2005.11.012

Cited by 146 publications

(98 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to their alpidic (Cretaceous) overprinting and uplift to above 4100 m (Jebel Toubkal 4167 m), the Palaeozoic, Mesozoic and Cenozoic rocks of the High Atlas Mountains produce vast amounts of sediment. Also, the older Anti Atlas relief, mainly Paleozoic rocks on Precambrian bedrock combined with transgressive sediments, was reactivated by the alpidic uplift causing sedimentation in the southern part of the Souss Valley [20]. The latter again overlay a sequence of older fluvial and lacustrine sediments.…”

Section: The Souss Valley Moroccomentioning

confidence: 92%

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

et al. 2014

View full text Add to dashboard Cite

This study presents a computer vision application of the structure from motion (SfM) technique in three dimensional high resolution gully monitoring in southern Morocco. Due to impractical use of terrestrial Light Detection and Ranging (LiDAR) in difficult to access gully systems, the inexpensive SfM is a promising tool for analyzing and monitoring soil loss, gully head retreat and plunge pool development following heavy rain events. Objects with known dimensions were placed around the gully scenes for scaling purposes as a workaround for ground control point (GCP) placement. Additionally, the free scaling with objects was compared to terrestrial laser scanner (TLS) data in a field laboratory in Germany. Results of the latter showed discrepancies of 5.6% in volume difference for erosion and 1.7% for accumulation between SfM and TLS. In the Moroccan research area soil loss varied between 0.58 t in an 18.65 m

show abstract

Section: The Souss Valley Moroccomentioning

confidence: 92%

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

et al. 2014

View full text Add to dashboard Cite

show abstract

“…the shortening in the western part of the AA lies between 15% and 25% (Helg et al 2004;burkhard et al 2006). No large-scale thrusting or duplexing is known.…”

Section: Geological Settingmentioning

confidence: 99%

“…the Variscan shortening in the western Anti-Atlas varies between 15 and 25% (caritg et al 2003;Helg et al 2004;burkhard et al 2006;robert-charrue & burkhard this volume). In a very simple model assuming constant cross section area, the tectonic thickening would be roughly of the same magnitude, i.e.…”

Section: Tectonic Thickening and Thermal Eventsmentioning

confidence: 99%

Illite crystallinity patterns in the Anti-Atlas of Morocco

et al. 2008

Self Cite

View full text Add to dashboard Cite

the low-grade metamorphism of the sedimentary cover of the Moroccan Anti-Atlas is investigated using Illite crystallinity (Ic) method. More than 200 samples from three key areas (southwestern, central and eastern Anti-Atlas) have been taken from a maximum of different stratigraphic levels and have been analysed. the metamorphism is of low to very low degree throughout the southern flank of the Anti-Atlas. It increases from northeast to southwest. Whereas in the eastern Anti-Atlas diagenetic and anchizonal Ic-values are predominant, in the western and central Anti-Atlas also epizonal Ic-values are found. In every respective area the Ic improves with stratigraphic age .At the scale of the entire Palaeozoic Anti-Atlas basin the Ic correlates best with estimated paleo-overburden. However, burial metamorphism cannot be the cause even though considering missing sedimentary pile of Late carbon -iferous age. the 'abnormal' paleo-geothermal gradient of 43-35 °c/km we evidenced for the carboniferous is a true one, and has to be related to a base -ment sequence enriched in heat producing elements such as series of the West African craton.

show abstract

“…Brittle deformation is ubiquitous but commonly attributed to (late) Hercynian episodes (e.g., Burkhard et al 2006;CerrinaFeroni et al 2010). An Alpine age for at least part of the deformations has been proposed by Malusà et al (2007) and Guimera et al (2011).…”

Section: The Areas To the S Of The High Atlasmentioning

confidence: 99%

Post-rift vertical movements and horizontal deformations in the eastern margin of the Central Atlantic: Middle Jurassic to Early Cretaceous evolution of Morocco

Bertotti

Gouiza

2012

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

Wide regions of Morocco, from the Meseta to the High Atlas, have experienced km-scale upward vertical movements during Middle Jurassic to Early Cretaceous times following the appearance of oceanic crust in the Central Atlantic. The area experiencing exhumation was flanked to the W by a domain of continuous subsidence, part of which is named the Essaouira-Agadir basin. Comparison with vertical movement curves predicted by lithospheric thinning models shows that only 50-60 % of the subsidence documented in the Essaouira basin can be explained by postrift thermal relaxation and that \30-40 % of the observed exhumation can be explained by processes (in)directly related to the evolution of the Central Atlantic rifted margin. Syn-sedimentary structures in Middle Jurassic to Lower Cretaceous formations of the Eassouira-Agadir basin are common and range from m-scale folds and thrusts to km-scale sedimentary wedges. These structures systematically document coeval shortening generally oriented at high angle to the present margin. As a working hypothesis, it is suggested that regional shortening can explain the structural observations and the enigmatic vertical movements.

show abstract

Tectonics of the Anti-Atlas of Morocco

Cited by 146 publications

References 64 publications

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

Small-Scale Surface Reconstruction and Volume Calculation of Soil Erosion in Complex Moroccan Gully Morphology Using Structure from Motion

Illite crystallinity patterns in the Anti-Atlas of Morocco

Post-rift vertical movements and horizontal deformations in the eastern margin of the Central Atlantic: Middle Jurassic to Early Cretaceous evolution of Morocco

Contact Info

Product

Resources

About