Mots-clés
Action anthropique ; Cartographie thématique ; Changement environnemental ; Cours d'eau éphémère ; Domaine aride ; Dune ; Désert ; Encroûtement ; Eolien ; Evaporite ; Gobabeb ; Géologie ; Géomorphologie ; Lithologie ; Namibie ; Transport éolienAeolian features ; Aeolian transport ; Arid area ; Desert ; Dune ; Duricrust ; Environmental change ; Ephemeral stream ; Evaporite ; Geology ; Geomorphology ; Human impact ; Lithology ; Namibia ; Thematic mappingAcción antrópica ; Campo árido ; Cartografía temática ; Desierto ; Duna ; Encostramiento ; Evaporita ; Eólico ; Geología ; Geomorfología ; Litología ; Namibie ; Transporte eólicoThe surface geology and geomorphology around Gobabeb, Namib Desert, Namibia
Southern African geomorphology : looking back, moving forward
Auteur(s) et Affiliation(s)
ECKARDT, F.D.
Dept. of Geography, Univ., Cape Town, Afrique du Sud
LIVINGSTONE, I.
School of Science and Technology, Univ., Northampton, Royaume-Uni
SEELY, M.
Gobabeb Research and Training Centre, Walvis Bay, Namibie
VON HOLDT, J.
Dept. of Geography, Univ., Cape Town, Afrique du Sud
SUMNER, P.D.
Dept. of Geography, Geoinformatics and Meteorology, Univ., Pretoria, Afrique du Sud
NEL, W.
Dept. of Geography and Environmental Science, Univ. of Fort Hare, Alice, Afrique du Sud
HOLMES, P.J.
Dept. of Geography, Univ. of the Free State, Bloemfontein, Afrique du Sud
Description :
This paper serves as a review of the surface geology and geomorphology around Gobabeb in the Central Namib Desert. It introduces the major lithologies associated with the Damara Orogen of Precambrian and Cambrian age, followed by Tertiary sandstones and conglomerates and Quaternary Kuiseb valley conglomerates, silts and gravels. To celebrate the 50th anniversary of the Gobabeb research station and the recent designation of the Namib Sand Sea as a world heritage site, the AA. present a map to inform and guide future research and educational activities around Gobabeb. The contrast between an ancient gravel plain to the north, a dynamic aeolian sand sea to the south and ephemeral river environments in between become apparent. These natural laboratories have attracted investigations of contemporary sand dune movement, hyper saline waters, evaporites and duricrusts and ephemeral flooding and recharge processes as well as environmental change and human impacts.
Type de document :
Article de monographie
Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2013, vol. 95, n°. 4, p. 271-284, nombre de pages : 14, Références bibliographiques : 2 p.
Date :
2013
Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)