Le néogène de la chaine du Pentadaktylos et de la partie nord de la Mésaoria (Chypre). Etude stratigraphique et micropaléontologique

Baroz, F.; Bizon, G.

doi:10.2516/ogst:1974015

Cited by 29 publications

(156 citation statements)

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“…Also the study ofthe Kyrenia region of northeastem Cyprus by Baroz and Bizon (1974) shows gypsum layers in the upper part ofthe GL diaenrei-humerosa zone (Lapatza Unit), usually considered latest Tortonian or earliest Messinian (pars auctorum, ca 1974). Turborota/iamu/tiloba, which typically occurs under gypsum beds in the western Mediterranean is found between gypsum beds of eastern Cyprus (before those ofSpain or Sicily).…”

Section: Zanclean Deluge)mentioning

confidence: 99%

Biodynamics, saline giants and late miocene catastrophism

Benson

1991

Carbonates Evaporites

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and Krona Rakic-EI Bied 12Avenue deFrance Rabat, MoroccoABSfRAcr: The Messinian Salinity Crisis is several crises that fit the context of catastrophic modeling of the history of a Mediterranean "saline giant." Ofthe explanations available, we prefer the deep-basin/deep-water precipitation model for the early, deep-basin, massive gypsums and halites, contemporaneous with marginal, lagoonal gypsums; and the deep-basin/shallow-water desiccation theory to explain the later, shallow cyclic gypsums with associated logo mare faunas. The western basins before and after the Crisiswere deepenough to maintain intermediate oceanicwater-masses, which is not possible today because ofshallowthresholds.Early Pliocene mean paleodepths ofthe western basinswere at least in the order of than 1500m, which is the mean depth of the present Mediterranean. Tectonic changes in the threshold to the Atlantic were responsible for the isolation of the Paleo-Mediterranean during a eustatic high stand, followed by regression consequent to the evaporite precipitation phases.The context of Messinian stratigraphy has changed to include more events leading up to the Crisis. It began with evaporite deposition in the eastern basins during the Tortonian, and served to concentrate saline bottom-waters that later overflowed across the Pelagian Sea toward the west. In the western basins, it started at 6.4 Ma with a general water-budget deficit that altered the inflow over the threshold in the Rifian Corridor. A time of unusually high organic productivity and water-mass stratification followed, contemporaneous with evaporite deposition in some of the marginal seas and lagoons.Massive gypsum and halite deposition took place in the deep western basin in Chron 5 between 5.4 and 53 Ma. Our studies in Morocco and Spain indicate that passages to the Atlantic were closed during the cyclicgypsum and "lago mare" deposition, which took place during the long negative polarity reversal ofChron Gilbert from 53 to 4.9 Ma. We doubt that there were multiple marine inundations from the Atlantic into the Mediterranean after the first drawdown. The Rifian Corridor was closed by olistostromes at about 5.5 Ma. The last "leak" through the Gibraltar Barrier probably occurred in a passage through Oued Laou in northern Morocco at 5.4 Ma. The Oued Laou valley, which now forms a gorge through the Rif Mountains, could have furnished the influx of enough marine water in 27,000 years to furnish the nearly kilometer thick salt deposits of the deep Mediterranen basins.Gypsum deposits associated with shallow Paratethyan caspi-brackish (less than 8 0/00 salinity) ostracode and mollusk faunas, in the lower parts of both the Tyrrhenian and Algero-Provencal Basins, show that water depths in the deep basins changed from more than 1000 m to in the order of 100 m or less. However, faunal alternations typical of playa deposition are missing. The chemical composition of both gypsum and fossil shells indicate significant meteoric water, signaling a "fresh-water crisis." It is probable that phreati...

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Section: Zanclean Deluge)mentioning

confidence: 99%

Biodynamics, saline giants and late miocene catastrophism

Benson

1991

Carbonates Evaporites

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“…To the north, in the Gulf of Lion drill cores, marine facies change gradually to continental facies near the early middle Serravallian . In the Eastern Mediterranean (Cyprus, Baroz and Bizon, 1974; Turkey, Bizon et al, 1974;Israel, Martinotti, 1982), the absence or scarcity of Globorotalia tar (Vergnaud-Grazzini and , in some levels of northern Morocco (Guillemin, 1976;Houzay, 1975), in the Alboran Basin , in the Balearic Basin , in Sicily (Catalano and Sprovieri, 1971;Colalongo et al, 1979), in Crete (Zachariasse, , 1979, and western Greece, probably indicates deeper basins than the highly conical morpho type (Wernli, 1980). In northern Italy (Cita and Blow, 1969), sandy and nearshore facies are predominant and probably responsible for the very few specimens of Globorotalia praemenardii and Globorotalia menardii recorded in this interval.…”

Section: Middle Miocenementioning

confidence: 99%

“…In the Eastern Mediterranean (Cyprus, Baroz and Bizon, 1974; Baroz et aI., 1978;Turkey, Bizon et aI., 1974), the planktonic foraminiferal assem-Germaine Bizon blages are generally poorly diversified with the predominance of epipelagic species such as Globigerinoides obliquus and G. trilobus and scarcity of Globigerina bulloides, which is more abundant in the Western Mediterranean. The Globorotalia acostaensis zone is recognized in Spain, Morocco, Algeria, Italy, Sicily, western Greece, Crete, Cyprus, and Turkey.…”

Section: Late Miocenementioning

confidence: 99%

Geological Evolution of the Mediterranean Basin

Stanley¹,

Wezel²

1985

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“…A recent stratigraphic and micropaleontologic work on the Neogene sediments of the Pentadaktylos (Kyrenia) and Mesaoria zones by Baroz and Bizon (1974) revealed nine formations ranging in age probably from late Eocene to the evaporitic Messinian and showed that the Pliocene sediments were transgressive and represent a new sedimentation cycle.…”

Section: Paleontologymentioning

confidence: 99%

“…A zonation proposed for the Pentadaktylos and the northern Mesaoria by Bizon (in Baroz and Bizon, 1974) is shown in Figure 5. Figure 6 shows the foraminiferal zoning of Cyprus as proposed by Mantis.…”

Section: Paleontologymentioning

confidence: 99%

Cyprus Evaporites

Pantazis¹

1978

Initial Reports of the Deep Sea Drilling Project

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The island of Cyprus is divisible into three major stratigraphic and tectonic zones. The Troodos zone in the south, consists of an igneous massif which occupies the core of the mountain range and has gently dipping sediments which are peripheral to the massif.The Pentadaktylos (Kyrenia) zone, in the north, in contrast to the Troodos massif, is strongly folded and thrusted zone comprised almost wholly of sedimentary rocks. The central core of Pentadaktylos (Kyrenia) range consists of crystallized and semicrystallized limestones and dolomites overthrust on younger chalky sediments and turbidites.

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Le néogène de la chaine du Pentadaktylos et de la partie nord de la Mésaoria (Chypre). Etude stratigraphique et micropaléontologique

Cited by 29 publications

References 0 publications

Biodynamics, saline giants and late miocene catastrophism

Biodynamics, saline giants and late miocene catastrophism

Geological Evolution of the Mediterranean Basin

Cyprus Evaporites

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