Titre | Le matériel de deux édifices dunaires postérieurs au dernier Pluvial (Nord du Mali et Sud-Ouest du Maroc)(Post late-pluvial aeolian dunes in Mali and Morocco) | |
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Auteur | Geneviève Coudé-Gaussen, Jean Riser, Pierre Rognon, André Weisrock | |
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Revue | Bulletin de l'Association de Géographes Français |
Numéro | no 483-484, 1982 | |
Rubrique / Thématique | Séance du 20 février 1982 L'aridité saharienne Thème 2 : l'aridité, études régionales |
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Page | 47-51 | |
Résumé anglais |
Aeolian sands were analyzed from km to km along the In Kous- samene erg (Mali) and the Cap Sim (Morocco). They show that. 1 ° With an increase in transport distance from a common source area, the ratio of quartz to shelly limes tone, or quartz to gypsum and clay increases. 2° A part of silt is formed by mechanical reduction of sand-sized marine organisms, clay and gypsum particles during aeolian transport. 3° The setting in motion of dust is very active near the source area of the aeolian sands. Source : Éditeur (via Persée) |
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Article en ligne | https://www.persee.fr/doc/bagf_0004-5322_1982_num_59_483_5304 |