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Geomorphology and (palaeo-)hydrography of the Southern Atbai plain and western Eritrean Highlands (Eastern Sudan/Western Eritrea) / Stefano Costanzo in Journal of maps, vol 17 n° 2 (February 2021)  

Public [article]  inJournal of maps > vol 17 n° 2 (February 2021) . - pp 51 - 62 Titre : Geomorphology and (palaeo-)hydrography of the Southern Atbai plain and western Eritrean Highlands (Eastern Sudan/Western Eritrea) Type de document : Article/Communication Auteurs : Stefano Costanzo, Auteur ; Andrea Zerboni, Auteur ; Mauro Cremaschi, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : pp 51 - 62 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique [Termes IGN] analyse du paysage [Termes IGN] carte géomorphologique [Termes IGN] ère quaternaire [Termes IGN] Erythrée [Termes IGN] hydrographie [Termes IGN] montagne [Termes IGN] roche [Termes IGN] Sahel [Termes IGN] Soudan [Termes IGN] tectonique Résumé : (auteur) We present the geomorphology of the Southern Atbai Plain (Eastern Sudan) and the western edge of the Eritrean Highlands (Western Eritrea), in the eastern Sahel. The mountainous area consists of Paleo-Proterozoic gneiss and Neo-Proterozoic igneous rocks and meta-volcanic assemblages shaped as inselbergs and whaleback landforms by weathering. Bare-rock hills emerge from a gentle glacis that oversees the Southern Atbai alluvial plain, located between the Atbara and Gash Rivers. The plain features the SSE-NNW-oriented endorheic terminal fan of the Gash River and is crossed by intricate Early to Late Pleistocene paleochannels, whose evolution was controlled by the interplay between Quaternary regional tectonics and arid to humid climatic and environmental oscillations. The map is intended to interpret the evolution of local landscape, thus representing a tool for reconstructing the spatial and temporal distribution of Late Quaternary archaeological features and their functional relationships with the fossil fluvial system and the western foothills. Numéro de notice : A2021-201 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/17445647.2020.1869112 Date de publication en ligne : 17/01/2021 En ligne : https://doi.org/10.1080/17445647.2020.1869112 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97156 [article]

Landsat tm and quickbird images for geological mapping in the syn-rift lower dogali formation (red sea coast, ne eritrea) / B. Antonielli in Photo interprétation, European journal of applied remote sensing, vol 45 n° 3 (septembre 2009)

Public [article]  inPhoto interprétation, European journal of applied remote sensing > vol 45 n° 3 (septembre 2009) . - pp 107 - 114 Titre : Landsat tm and quickbird images for geological mapping in the syn-rift lower dogali formation (red sea coast, ne eritrea) Type de document : Article/Communication Auteurs : B. Antonielli, Auteur ; F. Fidolini, Auteur ; G. Righini, Auteur Année de publication : 2009 Article en page(s) : pp 107 - 114 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photo-interprétation [Termes IGN] carte géologique [Termes IGN] Erythrée [Termes IGN] image Landsat-TM [Termes IGN] image optique [Termes IGN] image Quickbird [Termes IGN] photo-interprétation [Termes IGN] Rouge, mer [Termes IGN] système d'information géographique Résumé : (Auteur) Syn-rift Neogene deposits, composed of a 650 m thick volcano-sedimentary succession, crop out at the foot of the escarpment close to the village of Dogali, near Massawa (NE Eritrea). These deposits are related to the first stage of the Red Sea spreading. This work aims at mapping in detail this succession using remote sensing optical images integrated with ancillary data and ground truth information in a Geographic Information System. Optical images are usually effective in lithological discrimination in arid environment and fill the requirements of low-cost, rapid and accurate regional mapping. Photo-interpretation ofLandsat Thematic Mapper image was carried out in a test area of 500 km2 and Quickbird satellite images were used to detail a subset of 50 km2. The satellite images have been processed through radiometric enhancement, principal components analysis and band ratios. Ancillary data and evidences from field surveys supported the photo-interpretation. Rock samples, photos and observations collected during previous test campaigns provided interpre-tation keys of the satellite images. A preliminary scheme of the lithological units has been drawn from the Landsat image. The Proterozoic metamor-phic complex of the basement and the sedimentary fades of Lower Dogali Formation were mapped at scale ] :80,000. Evidences of laterites and base-ment weathering were also detected. A detailed analysis of sedimentary fades of the Lower Dogali Formation was then carried out using the Quickbird images at scale 1:10,000. The results of the photointerpretation of remotely sensed data confirm that the deposition of the Lower Dogali Formation is linked to the first stage of the Red Sea spreading and main considerations on the mecha--nisms and the evolution of different stages have been underlined. Although the next field campaign is going to endorse the remotely sensed data, these preliminary results give evidence of the contribu-tion of satellite images to the knowledge of the geo-logical setting of a poorly mapped area in arid environment. Numéro de notice : A2009-561 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30190 [article]

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104-09031	SL	Revue	Centre de documentation	Revues en salle	Exclu du prêt

L'Afrique mouvante / G. D' Ieteren (1953)

Public Titre : L'Afrique mouvante : une randonnée automobile sensationnelle en Tunisie, Égypte, Soudan, Erythrée, Éthiopie, Kenya, Uganda et Congo belge Type de document : Roman/Récit Auteurs : G. D' Ieteren, Auteur ; A. Villers, Auteur Editeur : chez l'auteur Année de publication : 1953 Importance : 281 p. Format : 14 x 20 cm + 1 carte Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géographie mondiale [Termes IGN] Congo belge [Termes IGN] Egypte [Termes IGN] Erythrée [Termes IGN] Ethiopie [Termes IGN] Kenya [Termes IGN] Libye [Termes IGN] Ouganda [Termes IGN] Soudan [Termes IGN] Tunisie (ANF) Numéro de notice : 37146 Affiliation des auteurs : non IGN Nature : Roman / récit Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=42442

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37146-01	60.00	Livre	Centre de documentation	En réserve M-103	Disponible