IGB

Connexion

(Article of periodic en Anglais - 2011)

Document title

Volcanic sands of Iceland - Diverse origins of aeolian sand deposits revealed at Dyngjusandur and Lambahraun

Authors(s) and Affiliation(s)

BARATOUX D. (1 2) ; MANGOLD N. (3) ; ARNALDS O. (4) ; BARDINTZEFF J.-M. (5 6) ; PLATEVOËT B. (5) ; GRÉGOIRE M. (7) ; PINET P. (1 2) ;
(1) Univ., UPS-OMP; IRAP, Toulouse, FRANCE
(2) CNRS; IRAP, Toulouse, FRANCE
(3) Lab. Planétologie et Géodynamique; UMR 6112, CNRS & Univ., Nantes, FRANCE
(4) Agricultural Univ., Borgarnes, ISLANDE
(5) Interactions et Dynamiques des Environnements de Surface; UMR 8148, CNRS & Univ. Paris-Sud, Orsay, FRANCE
(6) IUFM; Univ., Cergy-Pontoise, FRANCE
(7) GET; Univ. Toulouse III, Toulouse, FRANCE

Abstract

At both sites, the sand origin is determined from field observations (wind directions from ventifacts), chemical and mineralogical analyses of rocks and sands. At Dyngjusandur, the sand is dominated by glass grains, a situation typical of sand plains in Iceland. In the case of Lambahraun, prevailing winds indicate several potential sources of sand at the north of the sand sheet. Discrimination between the sources is based on a combination of morphological, mineralogical, and chemical data. Several hypotheses are tested, considering a single origin or multiple origins. Comparison of the 2 sites emphasizes the diversity of sand formation mechanisms in Iceland and the key role of glaciers

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no13 [pp. 1789-1808]

Bibliographic references : 60 ref.

Collation : 19 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2201

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25804245 : Permanent link - XML version
Powered by Pxxo