Limnogeologia de Laguna Chungara y cambio climatico durante el Holoceno Superior en el Altiplano chileno septentrional

Translated title of the contribution: The Laguna Chungara limnogeology and climatic change during the late Holocene in the northern Chilean Altiplano

B. L. Valero Garces, M. Grosjean, A. Schwalb, K. Kelts, H. Schreier, B. Messerli

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We reconstruct the Late Holocene sedimentary history of Laguna Chungara (69° 30' W, 18° 10'S, 4520 m.a.s.l., northern Chilean Altiplano) based on high resolution seismic profiling and sedimentologic analyses of cores. Two sedimentary facies associations have been defined and interpreted: i) macrophytedominant littoral, composed of black muds with macrophyte remains and peaty muds, and ii) Characeae-dominant lacustrine self, composed of gray muds and sands with abundant Characeae remains. The two facies associations define three cycles caused by oscillations in the lake level from shallower (macrophyte) to deeper (Characeae) conditions. Changes in the hydrology of Laguna Chungara reflect variations in the effective moisture (precipitation - evaporation) in the Altiplano during the Late Holocene.

Translated title of the contributionThe Laguna Chungara limnogeology and climatic change during the late Holocene in the northern Chilean Altiplano
Original languageSpanish
Pages (from-to)271-280
Number of pages10
JournalCadernos Laboratorio Xeoloxico de Laxe
Volume21
StatePublished - 1996
Externally publishedYes

Bibliographical note

Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.

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