Vegetation and climate change on the Bolivian Altiplano between 108,000 and 18,000 yr ago

Auteurs :
CHEPSTOW-LUSTY, A.
BUSH, M.B.
FROGLEY, M.R.
BAKER, P.A.
FRITZ, S.C.
ARONSON, J.

Description :
A 90,000-yr record of environmental change before 18,000 cal yr B.P. has been constructed using pollen analysis from a sediment core obtained from Salar de Uyuni (3653 m above sea level) on the Bolivian Altiplano. The sequence consists of alternating mud and salt, which reflects shifts between wet and dry periods. This region has in the past supported a series of large intermittent paleolakes. This interval incorporates the formation and subsequent dessication of 2 distinct paleolakes, Tauca and Minchin.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2005, vol. 63, n°. 1, p. 90-98, nombre de pages : 9, Collation : Illustration, Références bibliographiques : 42 ref.

Date :
2005

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier