Geneza i ewolucja obniżenia szottu Dżerid

• Autorzy: Tsermegas I.

Warianty tytułu

EN

Genesis and evolution of the Chott Jerid depression

• Języki publikacji: PL

Abstrakty

EN

The article describes genesis and evolution of a tectonic depression in which there is the largest seasonal lake of Tunisia - the Chott Jerid. Gelogical setting of the depression and its morphometry was described with respect to geology of the whole country. The region is characterised by strike-slip faults running NW-SE, therefore the depression is of the "pull-a part" structure type. The structure began forming in upper Carbon, later it was filled with Permian and Mesozoic sediments which were folded in Neogene. At the end of Pliocene and during Pleistocene the region was probably covered by sea two times, however the second sea transgression (Tyrrhenian II) is questioned by several researchers. Evolution of the depression has been associated with many local tectonic movements which are thought to be at least 0.01 mm/yr (based on thickness of Miocene and Pliocene sediments), and later (Pleistocene and Holocene) even up to 0,26 mm/yr. Denudation rate during the whole post-orogenesis period must have been relatively high due to the arid or semi-arid climate, which favoured intensive surface wash.

• Wydawca: -
• Czasopismo: Prace i Studia Geograficzne
• Rocznik: 2006
• Tom: 37
• Opis fizyczny: s.21-28,rys.,map.,bibliogr.

Twórcy

autor

Tsermegas I.

• Zakład Geoekologii, Wydział Geografii i Studiów Regionalnych, Uniwersytet Warszawski w Warszawie, Warszawa

Bibliografia

• Bishop W., 1975. Geology of Tunisia and adjacent parts of Algeria and Libya. Amarican Association Petroleum Geologists Bulletin 59, 561-570.
• Carte tectonique internationale de l'Afrique 1:5 000 000, Feuille 2, 1968. Asociation des Services Géologiques Africains, Unesco.
• Coque R., 1962. La Tunisie Présaharienne. Étude géomorphologique. Armand Colin, Paris.
• Gabtni H., Jallouli Ch., Mickus K., Zouari H., Turki M.M., 2005. Geophysical constrains on the location and nature of the North Saharan Flexure in Southern Tunisia. Pure and Applied Geophysics, 162, 2051-2069.
• Karystinaios N.K., 1987 /1988. „Transform regimes” und die tektonischen Structuren der Strymon (N. Griechenland). Annales Géologiques des Pays Helléniques. 135-146.
• Swezey C.S., 1996. Structural controls on Quaternary depocentres within the Chotts Trough region of southern Tunisia. Journal of African Earth Science 22, 3, 33-347.