The Atlas-Meseta Red Beds basin (Morocco) and the Lower Ordovician rifting of NW-Gondwana
作者： Hassan Ouanaimi , Abderrahmane Soulaimani , Christian Hoepffner , André Michard , Lahssen Baidder
DOI: 10.2113/GSSGFBULL.187.3.155
关键词: Basement (geology) 、 Paleontology 、 Tremadocian 、 Geology 、 Ordovician 、 Red beds 、 Shear zone 、 Floian 、 Precambrian 、 Gondwana
摘要: The transition from the Cambrian to Ordovician in Morocco is known be characterized by a frequent Furongian hiatus, restricted extension of Tremadocian marine deposits, and unconformities at base transgressive upper Floian deposits. In present work, we first highlight occurrence Fe- mica-rich, red silty/sandy formations Central Eastern High Atlas between Middle Upper sequences. Tislyt type-locality, synsedimentary hemigraben structure defined, within which beds show slump folds, debris flows internal unconformities. correlation with several coeval series Meseta domain allows us define shallow marine, ferruginous clastic Atlas-Meseta Red Beds (AMRB) basin during Tremadocian-early Floian. AMRB extended coastal block Anti-Atlas domain, being limited fault zones that became West shear zone South fault, respectively, Variscan orogen. compares rifted basins central Iberian Armorican massifs. were likely sourced east, both Precambrian basement Early magmatic rocks, contrary deposits Sahara platform south. Subsidence Iberian-Armorican NW-Gondwana border aborted Floian, whereas opening Rheic ocean went on more west.
unirioja.es
geoscienceworld.org
bsgf.fr参考文章(75)
Michel Corsini, Relation entre la marge du bassin cambrien et la cinématique hercynienne de la Meseta occidentale du Maroc: Un exemple de l'influence de l'héritage tectono-sédimentaire dans une chaîne intracontinentale Université de droit, d'économie et des sciences - Aix-Marseille III. ,(1988)
André Michard, Éléments de géologie marocaine Éditions du Service géologique du Maroc. ,(1976)
Christian Hoepffner, La tectonique hercynienne dans l'Est du Maroc Université Louis Pasteur. ,(1987)
Hassan Ouanaimi, Evolution sédimentaire et tectonique de la partie orientale du massif ancien du Haut-Atlas (Maroc) Montpellier 2. ,(1989)
Céline Ducassou, Marie-Pierre Dabard, Valérie Bosse, Jean-Jacques Peucat, Pavel Pitra, Jean-Louis Paquette, Michel Ballevre, Serge Fourcade, Histoire géologique du Massif armoricain : actualité de la recherche Bulletin de la Société Géologique et Minéralogique de Bretagne. pp. 5- 96 ,(2013)
Jean-Bernard Edel, Karel Schulmann, Ondrej Lexa, Marc Diraison, Yves Géraud, Permian clockwise rotations of the Ebro and Corso-Sardinian blocks during Iberian–Armorican oroclinal bending: Preliminary paleomagnetic data from the Catalan Coastal Range (NE Spain) Tectonophysics. ,vol. 657, pp. 172- 186 ,(2015) , 10.1016/J.TECTO.2015.07.002
F. Bea, P. Montero, F. Haissen, J.F. Molina, A. Michard, C. Lazaro, A. Mouttaqi, A. Errami, O. Sadki, First evidence for Cambrian rift-related magmatism in the West African Craton margin: The Derraman Peralkaline Felsic Complex Gondwana Research. ,vol. 36, pp. 423- 438 ,(2016) , 10.1016/J.GR.2015.07.017
Emmanuel L.O. Martin, Bernard Pittet, Juan-Carlos Gutiérrez-Marco, Jean Vannier, Khadija El Hariri, Rudy Lerosey-Aubril, Moussa Masrour, Hendrik Nowak, Thomas Servais, Thijs R.A. Vandenbroucke, Peter Van Roy, Romain Vaucher, Bertrand Lefebvre, The Lower Ordovician Fezouata Konservat-Lagerstätte from Morocco: Age, environment and evolutionary perspectives Gondwana Research. ,vol. 34, pp. 274- 283 ,(2016) , 10.1016/J.GR.2015.03.009
Paul E. Olsen, Dennis V. Kent, Mohammed Et-Touhami, John Puffer, Cyclo-, magneto-, and bio-stratigraphic constraints on the duration of the CAMP event and its relationship to the Triassic-Jurassic boundary The Central Atlantic Magmatic Province: Insights From Fragments of Pangea. ,vol. 136, pp. 7- 32 ,(2003) , 10.1029/136GM02
A. Michard, C. Hoepffner, A. Soulaimani, L. Baidder, The Variscan Belt Lecture Notes in Earth Sciences, Berlin Springer Verlag. ,vol. 116, pp. 65- 132 ,(2008) , 10.1007/978-3-540-77076-3_3