Geological evolution of the tethys belt from the atlantic to the pamirs since the LIAS

Dercourt, Jean; Zonenshain, Lev P.; Ricou, Luc-Emmanuel; Kazmin, V. G.; Pichon, Xavier Le; Knipper, A. L.; Grandjacquet, C.; Sbortshikov, I.M.; Geyssant, Jacques; Lepvrier, Claude; Pechersky, D.H.; Boulin, J.; Sibuet, Jean-Claude; Savostin, L. A.; Sorokhtin, O. G.; Westphal, M.; Bazhenov, Mikhail L.; Lauer, J. P.; Biju-Duval, B.

doi:10.1016/0040-1951(86)90199-x

Cited by 1,468 publications

(903 citation statements)

References 88 publications

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“…During the Late Miocene, the fully marine Caspian and Black Seas were connected by a deep waterway and the Black Sea was linked to the Mediterranean Sea as part of Paratethys (Dercourt et al, 1985). In the Middle Pliocene, orogenic activity separated the southern part of the Caspian Sea from the Black Sea but later they were temporarily reconnected, where the Caspian Sea was part of a slightly salty Pontic lake.…”

Section: The Caspian Seamentioning

confidence: 99%

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Marret

Leroy

Chalié

et al. 2004

Review of Palaeobotany and Palynology

106

119

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Recent to sub-recent sediments from the Caspian Sea, the Kara-Bogaz-Gol Bay, the Enseli lake and the Aral Sea contain the new organic-walled dinoflagellate cysts Caspidinium, Caspidinium rugosum and Impagidinium caspienense. Caspidinium rugosum has S-type paratabulation, dextral torsion and low relief intratabular ornamentation. Impagidinium caspienense has low intratabular suturo-cavate relief, parasutural septa irregular in height and a high septum at the junction of paraplate 1'''' and the sulcus.The accompanying species consist of Spiniferites cruciformis, Lingulodinium machaerophorum, Pyxidinopsis psilata, cysts of Pentapharsodinium dalei and Brigantedinium spp. Spiniferites cruciformis varies from specimens with a cruciform body with a well-developed postero-lateral membranous flange to specimens with a pear-shaped body, reduced processes and no flange. Sea-surface data from these Central Asian seas suggests that the two new taxa Caspidinium rugosum and Impagidinium caspienense are probably related to low salinity conditions (12-13).

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Section: The Caspian Seamentioning

confidence: 99%

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Marret

Leroy

Chalié

et al. 2004

Review of Palaeobotany and Palynology

106

119

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“…M a n u s c r i p t A c c e p t e d M a n u s c r i p t 3 oceanic lithosphere (e.g., Dercourt et al, 1986). The current-day tectonic structure of the zone of plate interaction is complex, involving back-thrust mountain ranges on the north (Betics) and south (Rif) sides of the collision zone and an intervening, deep basin (Alboran) reflecting active extension and subsidence (Figure 1).…”

mentioning

confidence: 99%

Geodetic constraints on active tectonics of the Western Mediterranean: Implications for the kinematics and dynamics of the Nubia-Eurasia plate boundary zone

Vernant

Fadil

Mourabit

et al. 2010

Journal of Geodynamics

109

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We present GPS observations in Morocco and adjacent areas of Spain from 15 continuous (CGPS) and 31 survey-mode (SGPS) sites extending from the stable part of the Nubian plate to central Spain. We determine a robust velocity field for the W 20Mediterranean that we use to constrain models for the Iberia-Nubia plate boundary.South of the High Atlas mountain system, GPS motions are consistent with Nubia plate motions from prior geodetic studies. We constrain shortening in the Atlas system to <

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“…Later, during the early Mesozoic, the Azores-Gibraltar Fracture Zone (AGFZ) constituted a major transcurrent boundary where the Central Atlantic Ridge ended and which caused extension into the Tethys area along deep oceanic basins (Srivastava et al, 1990a,b;Dewey et al, 1989). The Late Jurassic and Early Cretaceous progressive rifting of the Central Atlantic resulted in a major sinistral translation between Africa and Laurasia plus spreading in the Dercourt et al, 1986;Sanz de Galdeano, 1990 Tethys (Ziegler, 1989). Very active rifting in the Gulf of Cadiz occurred during Kimmeridgian to Tithonian times , and the Valangian through Barremian times (143-118 Ma), whereas the northern passive margin of Iberia was occupied by extensive carbonate platforms .…”

Section: The Initial Passive Marginsmentioning

confidence: 99%

“…A widespread carbonate platform occupied southern Iberia during the Early Jurassic in the Tethyan domain (Dercourt et al, 1986). The carbonate platform broke into half-graben structures during the Middle Jurassic and a passive margin setting involving platform and basinal paleogeographic domains was developed along southern Iberia (Vera, 1988).…”

Section: The Mesozoic Carbonate Platform and Late Cretaceous And Earlmentioning

confidence: 99%

“…of Cadiz, in contrast, a deep trough with paleodepths of several thousand meters and floored by oceanic and thin continental crust received large terrigenous sediment supply to develop thick turbidite systems in the forearc of the Alboran Domain (Wildi, 1983;Dercourt et al, 1986;Balanyá, 1991).…”

Section: The Oligocene To Early Miocene Terrigenous Regimes In the Acmentioning

confidence: 99%

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Interaction of tectonic and depositional processes that control the evolution of the Iberian Gulf of Cadiz margin

Maldonado

Nelson

1999

Marine Geology

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This study provides an integrated view of the growth patterns and factors that controlled the evolution of the Gulf of Cadiz continental margin based on studies of the tectonic, sedimentologic and oceanographic history of the area. Seven sedimentary regimes are identified, but there are more extensive descriptions of the late Cenozoic regimes because of the larger data base. The regimes of the Mesozoic passive margin include carbonate platforms, which become mixed calcareous-terrigenous deposits during the Late Cretaceous-early Tertiary. The Oligocene and Early Miocene terrigenous regimes developed, in contrast, over the active and transcurrent margins near the African-Iberian plate boundary. The top of the Gulf of Cadiz olistostrome, emplaced in the Late Miocene, is used as a key horizon to define the 'post-orogenic' depositional regimes. The Late Miocene progradational margin regime is characterized by a large terrigenous sediment supply to the margin and coincides with the closing of the Miocene Atlantic-Mediterranean gateways. The terrigenous drift depositional regime of the Early Pliocene resulted from the occurrence of high eustatic sea level and the characteristics of the Mediterranean outflow currents that developed after the opening of the Strait of Gibraltar. The Late Pliocene and Quaternary regimes are dominated by sequences of deposits related to cycles of high and low sea levels. Deposition of shelf-margin deltas and slope wedges correlate with regressive and low sea level regimes caused by eustasy and subsidence. During the highstand regimes of the Holocene, inner shelf prograding deltas and deep-water sediment drifts were developed under the influence of the Atlantic inflow and Mediterranean outflow currents, respectively. A modern human cultural regime began 2000 years ago with the Roman occupation of Iberia; human cultural effects on sedimentary regimes may have equalled natural factors such as climate change. Interplay of tectonic and oceanographic controls dominated the evolution of the Cadiz margin during the Cenozoic. Depositional sequences formed where the tectonic setting provided the accommodation space and the shape of the deposits has been greatly influenced by the strong unidirectional Atlantic inflow currents on the shelf and Mediterranean outflow currents on the slope. The entire cycle of the inflow and outflow deposition along the margin has been controlled first by the tectonic evolution of the Betic and Rif gateways, which become closed during the Late Miocene, and after the Messinian by the opening of the Strait of Gibraltar. Strong current development during eustatic sea level highstands of the Pliocene and Quaternary has controlled deposition because of maximum sill depths at Gibraltar for water circulation. Lowstand sea levels slowed circulation and resulted in mud drapes over the slope and regressive stratigraphic sequences over the shelf. More recently, the human industrial revolution has caused heavy metal contamination of sediment and water over the Cadiz margin. H...

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Geological evolution of the tethys belt from the atlantic to the pamirs since the LIAS

Cited by 1,468 publications

References 88 publications

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas

Geodetic constraints on active tectonics of the Western Mediterranean: Implications for the kinematics and dynamics of the Nubia-Eurasia plate boundary zone

Interaction of tectonic and depositional processes that control the evolution of the Iberian Gulf of Cadiz margin

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