Il est relié au reste du massif du Tibesti en direction du nord-nord-ouest par un plateau supportant des cônes volcaniques. [18] North of Emi Koussi lie other volcanoes, such as Tarso Ahon and Tarso Emi Chi,[27] the former of which is connected to Emi Koussi by a narrow ridge. Le rebord sud de cette caldeira constitue le point culminant du volcan, du massif du Tibesti, du Tchad et du Sahara avec 3 415[2],[4] ou 3 445[1] mètres d'altitude. Emi Koussi er en skjoldvulkan i den sydlige del af bjergkæden Tibesti i den centrale del af Sahara, og i det nordlige Tchad.Det er det højeste bjerg i Tchad, og det højeste i Sahara. Tchad. L'Emi Koussi est situé dans le Centre-Est du Sahara, dans le nord du Tchad, à l'extrémité sud-est du massif du Tibesti, un massif volcanique s'étendant au Tchad et en Libye . [19] This caldera is also known as Natron Hole[16] or Trou au Natron. Hassan Sylla Bakari qui n’est pas un inconnu des Tchadiens est à la recherche d’une licence à l’université privée Emi Koussi de Ndjamena. Dans le soucis d’encourager la reprise des cours, nous avons offert des masques de protection cet après-midi aux étudiants de l’université Hec Tchad et ceux de l’Emi Koussi. 2 746 vues Coordonnées. We and our partners process personal data such as IP Address, Unique ID, browsing data for: Use precise geolocation data | Actively scan device characteristics for identification.. [26][63] This vegetation encompasses Dichrocephala, Eragrostis, Erodium, Helichrysum as well as ferns, liverworts and mosses. Il est couronné par deux caldeiras coalescentes de douze kilomètres par quinze contenant plusieurs cratères, dômes, cônes et coulées de lave[1]. [23] The highest point of Emi Koussi lies on the southern rim of the caldera. Tchad : l’université Emi-Koussi dépose une plainte pour usages illicite de ses tampons. 2015 - Present. Later, the central volcanoes developed on top of these plateaus. Wilfred Thesiger parcourt le sommet en août 1938[8]. De nombreuses mesures de températures sont effectuées, toutes les deux heures le 16 septembre. [30], The oldest rocks below the Tibesti are Precambrian diorites, granites and schists,[27] which are probably of Neoproterozoic age and are differentiated into two units. Emi Koussi (also known as Emi Koussou ) is a high pyroclastic shield volcano that lies at the southeast end of the Tibesti Mountains in the central Sahara, in the northern Borkou Region of northern Chad. [31], Emi Koussi has erupted phonolite, trachyandesite and trachyte,[15] as well as mafic rocks like basanite and tephrite. [66], Natron in the inner caldera of Emi Koussi, Emi Koussi seen from Apollo 7 in October 1968, Media related to Emi Koussi at Wikimedia Commons, High pyroclastic shield volcano in the Sahara, "International Chronostratigraphic Chart", "Crater palaeolakes in the Tibesti mountains (Central Sahara, North Chad) – New insights into past Saharan climates", "Hochgebirgsforschung: Tibesti - Zentrale Sahara, Arbeiten aus der Hochgebirgsregion", "African wetlands and shallow water bodies : region 2 : Sahara", "Late Holocene plant and climate evolution at Lake Yoa, northern Chad: pollen data and climate simulations", "Comparison of volcanic features of Elysium (Mars) and Tibesti (Earth)", 10.1130/0016-7606(1977)88<908:COVFOE>2.0.CO;2, "The Exploration of Tibesti, Erdi, Borkou, and Ennedi in 1912-1917: A Mission Entrusted to the Author by the French Institute (Continued)", "Notes about Asplenium I. Asplenium quezeli, a pseudo-endemic species identical with A. daghestanicum (Aspleniaceae: Pteridophyta)", https://en.wikipedia.org/w/index.php?title=Emi_Koussi&oldid=1018935705, Short description is different from Wikidata, Pages using infobox mountain with deprecated parameters, Wikipedia articles with WorldCat-VIAF identifiers, Creative Commons Attribution-ShareAlike License, This page was last edited on 20 April 2021, at 17:39. Ce volcan trachytique s'étend sur soixante kilomètres par quatre-vingts[1]. [35] Diatom beds have been found 125 metres (410 ft) above the floor of Era Kohor[36] and in depressions without outlet elsewhere in the caldera,[37] they reach thicknesses of 4–5 metres (13–16 ft). [15] Phreatic explosions associated with Era Kohor have deposited large blocks within the summit caldera,[19] including beautifully coloured syenite blocks. [33], During the early Holocene,[34] Era Kohor was filled with a deep, circular lake. Emi Koussi + Ounianga Kébir. Créée par arrêté du ministère de l’Enseignement supérieur en novembre 2011, l’université est devenue en un temps record une institution de marque qui forme des étudiants rapidement opérationnels. 01 Montée Emi Koussi 115. Tchad : l’université Emi-Koussi dépose une plainte pour usages illicite de ses tampons Un cachet falsifié de l’université Emi-Koussi ainsi que des faux diplômes ont été retrouvés par la police judiciaire à l’issue d’une perquisition chez Ndilro alias Ferdinand. Subdivisions. [15] Volcanism in Tibesti has been explained with a mantle plume, as has been proposed for other African volcanoes,[29] although recently tectonic effects of the collision between Africa and Europe and their effects at a distance have also been advanced as an explanation. La dernière modification de cette page a été faite le 29 janvier 2021 à 20:46. [56] The diatom fauna appears to be unusual in comparison to other Saharan paleolakes, probably owing to the high elevation of the Emi Koussi lake. Point culminant du Sahara, l’Emi Koussi (3415m) fait sans conteste partie des plus beaux paysages sahariens. [60] The summit region features montane vegetation,[61] including Artemisia-Ephedra steppes[62] which cover large parts of the caldera floor[47] and may have been used as pastures. UNEK (UNIVERSITE EMI KOUSSI DE N'DJAMENA) Enseignement supérieur - Université. SVS Tchad - Saharan Travel Company - specialises in adventure tourism and exploration travel in Chad, from first plans to final destination. Emi Koussi (also known as Emi Koussou[3]) is a high pyroclastic shield[1] volcano that lies at the southeast end of the Tibesti Mountains in the central Sahara, in the northern Borkou Region of northern Chad. [22] Three maars and several scoria cones are also nested within the combined caldera,[19] along with lava domes and lava flows.
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