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(Article of periodic en Anglais - 2001)

Document title

Late Quaternary paleoclimate in semiarid northeastern Brazil from U-series dating of travertine and water-table speleothems

Authors(s) and Affiliation(s)

AULER A.S. ; SMART P.L. ;

Abstract

Fossil travertine and subaqueous speleothems in presently dry caves suggest periods of enhanced ground-water recharge during the Quaternary in semiarid northeastern Brazil. Travertine deposits and water-table speleothems were dated by the Th230/U234 technique, yielding new evidence for the timing of past periods of increased rainfall. The results thus indicate that significant variability in regional rainfall patterns occurred in the area during glaciations and caution against overgeneralization of paleoclimate patterns

Source

Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 2001, vol. 55, no2 [pp. 159-167]

Bibliographic references : 46 ref.

Collation : Illustration ;

Language

Anglais

INIST-CNRS, Cote INIST : 15739

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