A 3500 14C yr high-resolution record of water-level changes in lake Titicaca, Bolivia/Peru

Auteur(s) et Affiliation(s)

ABBOTT, M.B.

Dept. of Geosciences, Morrill Science Center, Univ. of Massachusetts, Amherst, Etats-Unis

Description :
Sediment cores collected from the southern basin of Lake Titicaca, on a transect from 4.6 m above overflow level to 15.1 m below overflow level are used to identify a new century-scale chronology of Holocene lake-level variations. The results indicate that lithologic and geochemical analyses on a transect of cores can be used to identify and date century-scale lake-level changes. Detailed sedimentary analyses of subfacies and radiocarbon dating were conducted on 4 representative cores. Several of the low lake levels coincided with cultural changes in the region, including the collapse of the Tiwanaku civilization.

Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1997, vol. 47, n°. 2, p. 169-180, Collation : Illustration, Références bibliographiques : 29 ref.

Date :
1997

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

Langue :
Anglais