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Connexion

(Article of periodic en Anglais - 2001)

Document title

Evidence for Late Quaternary aeolian activity in the Roraima-Guyana region

Authors(s) and Affiliation(s)

LATRUBESSE E.M. ; NELSON B.W. ;

Abstract

New evidence is provided for the aeolian origin of the upper unit of the Boa Vista Formation, found in the eastern part of the Brazilian state of Roraima and in the neighboring Guyana. This unit has 2 geomorphologically/sedimentologically distinct domains : a sandy and a silty realm. Located to the east and southeast (upwind) of the silty realm, the sandy realm includes very highly eroded, inactive parabolic and linear dunes and sand sheets. These results are based on remote-sensing and photo-interpretation. Discussion on the paleoenvironmental conditions

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2001, vol. 43, no1 [pp. 63-80]

Bibliographic references : 47 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Bureau de recherches géologiques et minières - Orléans

INIST-CNRS, Cote INIST : 16767

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2001.
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