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Facies of Liassic sponge mounds, central High Atlas, Morocco

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Summary

Liassic sponge mounds of the central High Atlas (Rich area, northern Morocco) have a stratigraphic range from the Lower/Upper Sinemurian boundary interval up to the lower parts of the Lower Pliensbachian (Carixian). The base of Liassic sponge mounds consists of a transgressive discontinuity, i.e., a condensed section of microbioclastic wackestones with firm- and hardgrounds, ferruginous stromatolites, sponge spicules and ammonites. The top of Liassic sponge mounds is an irregular palaeorelief covered by cherty marl-limestone rhythmites, namely hemipelagic spicular wackestones with radiolaria.

In the Rich area, section Foum Tillicht, the sponge mound succession has a total thickness of about 250 meters. Within this succession we distinguished between three mound intervals. The lower mound interval shows only small, meter-scale sponge mounds consisting of boundstones with lyssakine sponges, commensalicTerebella and the problematicumRadiomura. This interval forms a shallowing-upward sequence culminating in a bedded facies withTubiphytes, calcareous algae (Palaeodasycladus), sponge lithoclasts, coated grains, and thin rims of marine cement. The middle mound interval is aggradational with decametric mounds and distinct thrombolitic textures and reefal cavities. The mound assemblage here consists of hexactinellid sponges, lithistid demosponges, non-rigid demosponges,Radiomura, Serpula (Dorsoserpula), Terebella, encrusting bryozoa, and minor contributions by calcareous sponges, and excavating sponges (typeAka). Thrombolites are dendrolitic and may reach sizes of several tens of centimeters, similar to the maximum size of siliceous sponges. The upper mound interval appears retrogradational and geometries change upsection from mound shapes to flat lenses and level-bottom, biostromal sponge banks. The biotic assemblage is similar to that of the middle mound interval and there is no difference between mound and bank communities. The demise of sponge mounds is successive from regional spread in the Sinemurian to more localised spots in the Lower Pliensbachian. This reduction correlates with an increasing influence of pelagic conditions.

At Foum Tillicht, sponge mounds lack any photic contribution and there is virtually no differentiation into subcommunities between mound surface and cavity dwelling organisms. There is some evidence that the heterotrophic food web of mound communities was sourced by oxygen minimum zone edge effects, namely microbial recycling of essential elements such as N and P. Basin geometry suggests a waterdepth of several 100's of meters, well below the photic zone and possibly only controlled by the depth range of the oxygen minimum zone. Palaeoceanographic conditions of well-stratified deeper water masses diminished gradually during widespread transgression across the Sinemurian to Pliensbachian boundary culminating in the Lower Pliensbachianibex ammonite zone.

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References

  • Anderson, J.J., Okubo, A., Robbins, A.S. and Richards, F.A. (1982): A model for nitrite and nitrate distributions in oceanic oxygen minimum zones.—Deep-Sea Research29, 1113–1140.

    Article  Google Scholar 

  • Bassoullet, J.-P. (1997): Algues dasycladales. Distribution des principales espèces.—In: Cariou, E. and Hantzpergue, P. (coord.): Biostratigraphie du Jurassique ouest-Européen et Méditerranéen.—Mém. Centres Rech. Explor.-Prod. Elf Aquitaine,17, 339–342.

  • Beauchamp, W., Allmendinger, R.W., Barazangi, M., Demnati, A., El Alji, M. and Dahmani, M. (1999): Inversion tectonics and the evolution of the High Atlas Mountains Morocco, based on a geological-geophysical transect.—Tectonics,18, 163–184.

    Article  Google Scholar 

  • Beauchamp, W., Barazangi, M., Demnati, A. and El Alji, M. (1996) Intracontinental rifting and inversion: Missour Basin and Atlas Mountains, Morocco.—Amer. Assoc. Petrol. Geol. Bull.,80, 1459–1482.

    Google Scholar 

  • Bernasconi, R. (1983): Géologie du Haut Atlas de Rich (Maroc).— Ph.D. thesis, Université de Neuchatel, Institut de Géologie 107 p. (unpublished).

  • Berry, W.B.N., Wilde, P. and Quinby-Hunt, M.S. (1989): Paleozoic (Cambrian through Devonian) anoxitropic biotopes.— Palaeogeograph. Palaeoclimatol. Palaeoecol.,74, 3–13.

    Article  Google Scholar 

  • Blau, J. (1998): Monographie der Ammoniten des Obersinemuriums (Lotharingium, Lias) der Linzer Dolomiten (Österreich): Biostratigraphie Systematik und Paläobiogeographie.—Rev. Paléobiol.,17, 177–285.

    Google Scholar 

  • Blau, J. and Meister, C. (2000): Upper Sinemurian successions based on 41 faunal horizons: an attempt at worldwide correlation. —GeoResearch Forum, 6, 3–12.

    Google Scholar 

  • Braga, J.C. and Rivas, P. (1985): The Mediterranean Tropidoceras (Ammonitina) in the Betic Cordilleras.—Eclogae Geol. Helv.,78, 567–605.

    Google Scholar 

  • Brechbühler, Y.-A. (1985): Étude structurale et géologique du Haut Atlas calcaire entre le Jebel Ayachi et Rich (Maroc).— Ph.D. thesis, Université de Neuchatel, Institut de Géologie, 128 p. (unpublished).

  • Brechbühler, Y.-A., Bernasconi, R. and Schaer, J.-P. (1988): Jurassic sediments of the central High Atlas: deposition, burial and erosion history.—In: Jacobshagen, V. (ed.): The Atlas System of Morocco.—Lecture Notes Earth Sciences,15, 201–217.

  • Brede, R. and Heinitz, W. (1986): Zum Bau des Hohen Atlas zwischen Errachidia und Midelt (Marokko).—Berliner geowiss. Abh.,A 66, 433–454.

    Google Scholar 

  • Brunton, F.R. and Dixon, O.A. (1994): Siliceous sponge-microbe biotic associations and their recurrence through the Phanerozoic as reef mound constructors.—Palaios,9, 370–387.

    Article  Google Scholar 

  • Byers, C.W. (1977): Biofaceis patterns in euxinic basins: a general model.—In: Cook, H.E. and Enos, P. (eds.): Deep water carbonate environments.—Soc. Econ. Paleont. Mineral., Spec. Publ,25, 5–17.

  • Corna, M., Dommergues, J.-L., Meister, C. and Mouterde, R. (1997): Sinemurien.—In: Cariou, E. and Hantzpergue, P. (coord.): Biostratigraphie du Jurassique ouest-Européen et Méditerranéen.—Mém. Centres Rech. Explo.-Prod. Elf Aquitaine,17, 8–14.

  • Crevello, P.D. (1990): Stratigraphic evolution of Lower Jurassic carbonate platforms: record of rift tectonics and eustasy, central and eastern High Atlas, Morocco.—Ph.D. Thesis, Univ. Colorado, 457 p. (unpublished).

  • Cros, P. and Lemoine, M. (1966a): Dasycladacées nouvelles ou peu connues du Lias inférieur des Dolomites et de quelques autres régions méditerranéennes, partie I.—Rev. Micropaléontologie,9, 156–168.

    Google Scholar 

  • Cros, P. and Lemoine, M. (1966b): Dasycladacées nouvelles ou peu connues du Lias inférieur des Dolomites et de quelques autres régions méditerranéennes, partie II.—Rev. Micropaléontologie,9, 246–257.

    Google Scholar 

  • Dommergues, J.-L., Meister, C., Bonneau, M., Cadet, J.P. and Fili, I. (2000): Les ammonites du Sinémurian supérieur et du Carixian inférieur à moyen du gisement de Lefterochori (Albanie méridionale). Témoin exceptionel des faunes de la Téthys méditerranéenne orientale.—Geobios,33, 329–358.

    Article  Google Scholar 

  • Dommergues, J.-L., Meister, C. and Mouterde, R. (1997): Pliensbachien.—In: Cariou, E. and Hantzpergue, P. (coord.): Biostratigraphie du Jurassique ouest-Européen et Méditerranéen.-Mém Centres Rech. Explo.-Prod. Elf Aquitaine,17, 15–23.

  • Dresnay, R. du (1988): Recent data on the geology of the Middle-Atlas (Morocco). In: Jacobshagen, V. (ed.): The Atlas System of Morocco.-Lecture Notes Earth Sciences,15, 293–320.

  • Dresnay, R. du, Termier, G., and Termier, H. (1978): Les hexactinellides (Lyssakides et Dyctionines) du Lias marocain.— Geobios,11, 269–295.

    Article  Google Scholar 

  • Dresnay, R. du (1977): Le mileu récifal fossile du Jurassique inférieur (Lias) dans le domaine des chaînes Atlasiques du Maroc.—Mém. Bur. Rech. Geol. Min. France,89, 296–312.

    Google Scholar 

  • Dubar, G. (1962): Notes sur la paléogéographie du Lias marocain (domaine atlasique).—Soc. Géol. France, Mém. Hors Série, Livre à la mémoire du Professeur P. Fallot,1, 529–544.

    Google Scholar 

  • El Hariri, K., Dommergues, J.-L., Meister, C., Souhel, A. and Chafiki, D. (1996): Les ammonites du Lias inférieur et moyen du Haut-Atlas de Béni-Méllal (Maroc): Taxonomie et biostratigraphie à haute résolution.—Geobios,19, 537–576.

    Google Scholar 

  • Evans, I. and Kendall, C.G.St.C. (1977): An interpretation of the depositional setting of some deep-water Jurassic carbonates of the central High Atlas mountains, Morocco.—In: Cook, H.E. and Enos, P. (eds.): Deep water carbonate environments. —Soc. Econ. Paleont. Mineral., Spec. Publ.,25, 249–261.

  • Evans, I., Kendall, C.G.St.C. and Butler, J.C. (1977): Genesis of Liassic shallow and deep water rhythms, central High Atlas Mountains, Morocco.—J. Sediment. Petrol.,47, 120–128.

    Google Scholar 

  • Evans, I., Kendall, C.G.St.C. and Warme, J.E. (1974): Jurassic sedimentation in the High Atlas Mountains of Morocco during early rifting of Africa and North America.—Geology,2, 295–296.

    Article  Google Scholar 

  • Fagerstrom, J.A. (1987): The Evolution of Reef Communities. New York (Wiley).

    Google Scholar 

  • Freiwald, A. (1998): Microbial maceration and carbonate dissolution on cold-temperate shelves.—Hist. Biol.13, 27–35.

    Article  Google Scholar 

  • Freiwald, A., Henrich, R. and Pätzold, J. (1997): Anatomy of a deep-water coral reef mound from Stjernsund, West-Finnmark, Northern Norway.—Soc. Econ. Paleont. Mineral., Spec. Publ.,56, 141–162.

    Google Scholar 

  • Freiwald, A. and Wilson, J.B. (1998): Taphonomy of modern deep, cold-temperate water coral reefs.—Hist. Biol.,13, 37–52.

    Google Scholar 

  • Gabilly, J., Cariou, E. and Hantzpergue P. (1985): Les grandes discontinuités stratigraphiques au Jurassique: témoins d'évènements eustatiques, biologiques et sédimentaires.— Bull. Soc. géol. France,1985/3, 391–401.

    Google Scholar 

  • Gomez, F., Beauchamp, W. and Barazangi M. (2000): Role of the Atlas Mountains (northwest Africa) within the African-Eurasian Pl. boundary zone.—Geology,28, 775–778.

    Article  Google Scholar 

  • Guiraud, R. (1998): Mesozoic rifting and basin inversion along the northern African Tehthyan margin: an overview.—In: Macgregor, D.S., Moody, R.T.J. and Clark-Lowes, D.D. (eds.): Petroleum Geology of North Africa.—Geol. Soc., London, Spec. Publ.,132, 217–229.

  • Halliwell Hazlett, B. (1989): Resedimented carbonate deposits along the southern margin of the central and eastern High Atlas Rift, Morocco.—In: Warme, J.E. (ed.): Evolution of the Jurassic High Atlas Rift, Morocco: Transtension, structural and eustatic controls on carbonate facies, tectonic inversion. —Guidebook, Amer. Assoc. Petrol. Geol. Field Seminar, 24 September to 1 October 1989.—Publ., no. 9, Exploration Geosciences Institute Colorado School of Mines, Colorado, USA, p. IX1-IX44.

    Google Scholar 

  • Hallock, P. (1988): The role of nutrient availability in bioerosion: consequences to carbonate buildups.—Paleogeogr., Palaeoclimatol., Palaeoecol.,63, 275–291.

    Article  Google Scholar 

  • Hamilton, W.A. (2000): Microbially influenced corrosion in the context of metal microbe interactions.—In: Evans, L.V. (ed.): Biofilms: recent advances in their study and control.—419–434, Amsterdam (Harwood)

    Google Scholar 

  • Hauptmann, M. (1990): Untersuchungen zur Mikrofazies, Stratigraphie und Paläogeographie jurassischer Karbonatgesteine im Atlas-System Zentral-Marokkos.—Berliner geowiss. Abh., F, 90 pp.

  • Hesselbo, S.P. and Jenkyns, H.C. (1998): British Lower Jurassic sequence stratigraphy. In: Graciansky, de, P.-C., Hardenbol, J. Jacquin, T. and Vail, P.R. (eds.): Mesozoic and Cenozoic sequence stratigraphy of European Basin.—Soc. Econ. Paleont. Mineral., Spec. Publ.,60, 561–581.

  • Hessler, R.R. and Kaharl, V.A. (1995): The deep-sea hydrothermal vent community: an overview.—In: Humphris, S.E., Zierenberg, R.A., Mullineaux, L.S. and Thomson, R.E. (eds.): Seafloor Hydrothermal Systems, Physical, Chemical, Biological, and Geological Interactions.—AGU Geophysical Monograph,91, 72–84.

  • House, M.R. (1995): Orbital forcing timescales: an introduction. —In: House, M.R. and Gale, A.S. (eds.): Orbital Forcing Timescales and Cyclostratigraphy.—Geol. Soc. Spec. Publ.,85, 1–18.

  • Jacobshagen, V., Brede, R., Hauptmann, M., Heinitz, W. and Zylka, R. (1988): Structure and post-Palaeozoic evolution of the central High Atlas.—In: Jacobshagen, V. (ed.): The Atlas System of Morocco.—Lecture Notes Earth Sciences,15, 245–271.

  • Jacquin, T. and Graciansky, P.C., de (1998): Major transgressive/regressive cycles: the stratigraphic signature of European basin development.—In: Graciansky, P.C. de, Hardenbol, J., Jacquin, T. and Vail, P.R. (eds.): Mesozoic and Cenozoic Sequence Stratigraphy of European Basins.—Soc. Econ. Paleont. Mineral., Spec. Publ.,60, 15–29.

  • Lachkar, N., Dommergues, J.-L., Meister, C., Neige, P., Izart A. and Lang, J. (1998): Les ammonites du Sinémurien du Jebel Bou-Hamid (Haut-Atlas central, Rich, Maroc). Approches paléontologique et biostratigraphique.—Geobios,31, 587–619.

    Article  Google Scholar 

  • Laville, E. (1988): A multiple releasing and restraining stepover model for the Jurassic strike-slip basin of the Central High Atlas (Morocco).—In: Manspeizer, W., (ed.): Triassic-Jurassic Rifting, Continental Breakup and the Origin of the Atlantic Ocean and Passive Margins.—Dev. Geotectonics,22, 499–523.

  • Lees, A. and Miller, J. (1995): Waulsortian Banks.—In: Monty, C.L.V., Bosence, D.W.J., Bridges, P.H. and Pratt, B.R. (eds.): Carbonate mud-mounds, their origin and evolution.— Spec. Publ. Int. Assoc. Sedim.,23, 191–271.

  • Leinfelder, R.R., Nose, M., Schmid, D.U. and Werner, W. (1993): Microbial crusts of the Late Jurassic: composition, paleoecological significance and importance in reef construction. —Facies,29, 195–230.

    Article  Google Scholar 

  • Lowell, J.D. (1995): Mechanics of basin inversion from world-wide examples.—In: Buchanan, J.G. and Buchanan, P.G. (eds.): Basin Inversion.—Geol. Soc. Spec. Publ.,88, 39–57.

  • Manspeizer, W. (1988, ed.): Triassic-Jurassic Rifting, Continental Breakup and the Origin of the Atlantic Ocean and Passive Margins.—Dev. Geotectonics,22, 533 pp.

  • Manspeizer, W., Puffer, J.H. and Cousminer, H.L. (1978): Separation of Morocco and eastern North America: a Triassic-Liassic stratigraphic record.—Geol. Soc. Amer. Bull.,89, 901–920.

    Article  Google Scholar 

  • Mattis, A.F. (1977): Nonmarine Triassic sedimentation, Central High Atlas Mountains, Morocco.—J. Sediment. Petrol.,47, 107–119.

    Google Scholar 

  • Mehdi, M., Almeras, Y., Cugny, P., Elmi, S., Faure, Ph., and Peybernès, B. (1994): Le Lias et le Dogger du massif de Terni-Masgout (avant pays rifain oriental, Maroc), témoins de la marge maghrébine de la Tethys.—Bull. Soc. Hist. Nat. Toulouse,130, 59–69.

    Google Scholar 

  • Meister, C. (1986): Les ammonites du Carixien des Causses (France).—Mém. suisses de Paléontologie,109, pp. 209.

    Google Scholar 

  • Messing, C.G., Neumann, A.C. and Lang, J.C. (1990): Biozonation in deep-water lithoherms and associated hardgrounds in the northeastern Straits of Florida.—Palaios,5, 15–33.

    Article  Google Scholar 

  • Morse, J.W. and Mackenzie, F.T. (1990): Geochemistry of sedimentary carbonates.—Dev. Sedimentol.,48, pp. 707.

    Google Scholar 

  • Mullins, H.T., Thompson, J.B., McDougall, K. and Vercoutere, T.L. (1985): Oxygen-minimum zone edge effects: Evidence from the central California coastal upwelling system.—Geology,13, 491–494.

    Article  Google Scholar 

  • Neumann, A.C. and Kofoed, J.W. (1972): «Lithoherms» in the Straits of Florida.—Geol. Soc. Amer., Abs. with Programs (Ann. Mtg.), 4/7, 611.

    Google Scholar 

  • Neumann, A.C., Kofoed, J.W. and Keller, G.H. (1977): Lithoherms in the Straits of Florida.—Geology,5, 4–10.

    Article  Google Scholar 

  • Neuweiler, F., Gautret, P., Thiel, V., Lange, R., Michaelis, W. and Reitner, J. (1999): Petrology of Lower Cretaceous carbonate mud mounds (Albian, N. Spain): insights into organomineralic deposits of the geological record.—Sedimentology,46, 837–859.

    Article  Google Scholar 

  • Neuweiler, F., Rutsch, M., Geipel, G., Reimer, A. and Heise, K.H. (2000): Soluble humic substances from in situ precipitated microcrystalline calcium carbonate, internal sediment, and spar cement in a Cretaceous carbonate mud-mound.— Geology,28, 851–854.

    Article  Google Scholar 

  • Oschmann, W. (1991): Anaerobic-poikiloaerobic-aerobic: a new zonation for modern and ancient neritic redox facies.—In: Einsele, G., Ricken, W. and Seilacher, A. (eds.): Events and Cycles in Stratigraphy.—565–571 Heidelberg (Springer)

    Google Scholar 

  • Parsch, K.O.A. (1956): Die Serpuliden-Fauna des südwestdeutschen Jura.—Palaeontographica Abt. A,107, 211–240.

    Google Scholar 

  • Paull, C.K., Neumann, A.C., am Ende, B.A., Ussler III, W. and Rodriguez, N.M. (2000): Lithoherms on the Florida-Hatteras slope.—Mar. Geol.,166, 83–101.

    Article  Google Scholar 

  • Peckmann, J., Reitner, J., Neuweiler, F. (1998): Seepage related or not? Comparative analyses of Phanerozoic deep-water carbonates.—UNESCO-IOC Workshop Report,143, 18–19.

    Google Scholar 

  • Pratt, B.R. (1982): Stromatolitic framework of carbonate mudmounds. —J. Sediment. Petrol.,52, 1203–1227.

    Google Scholar 

  • Rakús, M. (1994): Les ammonites Lotharingiennes du Jebel Bou Hamid (Haut Atlas de Rich, Maroc).—Palaeopelagos Spec. Publ.,1, 299–316.

    Google Scholar 

  • Reitner, J., Neuweiler, F., Gautret, P. (1995): Modern and fossil automicrites: implications for mud mound genesis.—Facies,32, 2–17.

    Article  Google Scholar 

  • Rhoads, D.C. and Morse, J.W. (1971): Evolutionary and ecological significance of oxygen-deficient marine basins.—Lethaia,4, 413–428.

    Google Scholar 

  • Sadki, D. (1992): Les variations de faciès et les discontinuités de sédimentation dans le Lias—Dogger du Haut Atlas central (Maroc): chronologie, caractérisation, corrélations.—Bull. Soc. géol. France,163, 179–186.

    Google Scholar 

  • Schmid, D.U. (1996): Marine Mikrobolithe und Mikroinkrustierer aus dem Oberjura.—Profil,9, 101–251.

    Google Scholar 

  • Schumann-Kindel G., Bergbauer M., Manz W., Szewzyk U. and Reitner J. (1997): Aerobic and anaerobic microorganisms in modern sponges: A possible relationship to fossilization processes.—Facies,36, 268–272.

    Google Scholar 

  • Senowbari-Daryan, B. (1980): Fazielle und paläontologische Untersuchungen in oberrhätischen Riffen (Feichtenstein- und Grubenriffbei Hintersee, Salzburg, Nördliche Kalkalpen).—Facies,3, 1–237.

    Article  Google Scholar 

  • Senowbari-Daryan, B and Kuss, J. (1992): Anomuren-Koprolithen aus der Kreide von Ägypten.—Mitt. Geol.-Paläont. Inst. Univ. Hamburg,73, 129–157.

    Google Scholar 

  • Senowbari-Daryan, B. and Schäfer, P. (1979): Neue Kalkschwämme und ein Problematikum (Radiomura cautica n.g., n.sp.) aus Oberrhät-Riffen südlich von Salzburg (Nördliche Kalkalpen).—Mitt. österr. geol. Ges.,70, 17–42.

    Google Scholar 

  • Stanley, R.G. (1981): Middle Jurassic shoaling of the Central High Atlas sea near Rich, Morocco.—J. Sediment. Petrol.,51, 895–907.

    Google Scholar 

  • Stanton, R.J. Jr., Jeffery, D.L. and Guillemette, R.N. (2000): Oxygen minimum zone and internal waves as potential controls on location and growth of Waulsortian Mounds (Mississippian, Sacramento Mountains, New Mexico).—Facies,42, 161–176.

    Article  Google Scholar 

  • Studer, M. and Dresnay, R., du (1980): Déformations synsédimentaires en compression pendant le Lias supérieur et le Dogger, au Tizi n'Irhil (Haut Atlas central de Midelt, Maroc).—Bull. Soc. géol. France,22, 391–397.

    Google Scholar 

  • Studer, M.A. (1987): Téctonique et pétrographie des roches sédimentaires, éruptives et métamorphiques de la région de Tounfite-Tirrhist (Haut Atlas central mésozoique, Maroc).—Notes Serv. géol. Maroc,43, 65–197.

    Google Scholar 

  • Vercoutere, T.L., Mullins, H.T., McDougall, K. and Thompson, J.B. (1987): Sedimentation across the central California oxygen minimum zone: an alternative coastal upwelling sequence.—J. Sediment. Petrol.,57, 709–722.

    Google Scholar 

  • Warme, J.E. (1988): Jurassic carbonate facies of the central and eastern High Atlas Rift, Morocco.—In: Jacobshagen, V. (ed.): The Atlas System of Morocco.—Lecture Notes Earth Sciences,15, 169–199.

  • Warme, J.E. (1989, ed.): Evolution of the Jurassic High Atlas Rift, Morocco: Transtension, structural and eustatic controls on carbonate facies, tectonic inversion: Guidebook, Amer. Assoc. Petrol. Geol. Field Seminar, 24 September to 1 October 1989, 332 p.—Publ., no. 9, Exploration Geosciences Institute, Colorado School of Mines, Colorado, USA.

    Google Scholar 

  • Webb, G.E. (1987): Late Mississippian thrombolite bioherms from the Pitkin Formation of northern Arkansas.—Geol. Soc. Amer. Bull.,99, 686–698.

    Article  Google Scholar 

  • Westermann, G.E.G. (2000): Marine faunal realms of the Mesozoic: review and revision under the new guidelines for biogeographic classification and nomenclature.—Palaeogeograph. Palaeoclimatol. Palaeoecol.,163, 49–68.

    Article  Google Scholar 

  • Wilber, R.J. and Neumann, A.C. (1993): Effects of submarine cementation on microfabrics and physical properities of carbonate slope deposits, Northern Bahamas.—In: Rezak, R. and Lavoie, D.L. (eds.): Carbonate Microfabrics.—Frontiers Sediment. Geol., 79–94.

  • Wilson, J.L. (1975): Carbonate facies in geologic history.—471 pp., Berlin (Springer)

    Google Scholar 

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  1. Göttinger Zentrum Geowissenschaften (GZG), Abteilung Geobiologie, Georg-August-Universität Göttingen, Goldschmidstrasse 3, D-37077, Göttingen, Germany

    Fritz Neuweiler

  2. Faculté des Sciences, Département de Géologie, Université Mohammed 1er, 60000, Oujda, Maroc

    Mohammed Mehdi

  3. Institut für Paläontologie, Universität Würzburg, Am Pleicherwall 1, D-97070, Würzburg, Germany

    Markus Wilmsen

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Neuweiler, F., Mehdi, M. & Wilmsen, M. Facies of Liassic sponge mounds, central High Atlas, Morocco. Facies 44, 243–264 (2001). https://doi.org/10.1007/BF02668177

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