Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40°S)

Sebastien Bertrand; Francois Charlet; Bernard Charlier; Virginie Renson; Nathalie Fagel

Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40°S)

Sebastien Bertrand, Francois Charlet, Bernard Charlier, Virginie Renson, Nathalie Fagel

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Abstract

This paper presents a multi-proxy climate record of an 11 m long core collected in Lago Puyehue (southern Chile, 40°S) and extending back to 18,000 cal yr BP. The multi-proxy analyses include sedimentology, mineralogy, grain size, geochemistry, loss-on-ignition, magnetic susceptibility and radiocarbon dating. Results demonstrate that sediment grain size is positively correlated with the biogenic sediment content and can be used as a proxy for lake paleoproductivity. On the other hand, the magnetic susceptibility signal is correlated with the aluminium and titanium concentrations and can be used as a proxy for the terrigenous supply.

Original language	English
Pages (from-to)	179-195
Number of pages	17
Journal	Journal of Paleolimnology
Volume	39
Publication status	Published - 2008

Keywords

Paleoclimate
Lake record

Cite this

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title = "Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40°S)",

abstract = "This paper presents a multi-proxy climate record of an 11 m long core collected in Lago Puyehue (southern Chile, 40°S) and extending back to 18,000 cal yr BP. The multi-proxy analyses include sedimentology, mineralogy, grain size, geochemistry, loss-on-ignition, magnetic susceptibility and radiocarbon dating. Results demonstrate that sediment grain size is positively correlated with the biogenic sediment content and can be used as a proxy for lake paleoproductivity. On the other hand, the magnetic susceptibility signal is correlated with the aluminium and titanium concentrations and can be used as a proxy for the terrigenous supply.",

keywords = "Paleoclimate, Lake record",

author = "Sebastien Bertrand and Francois Charlet and Bernard Charlier and Virginie Renson and Nathalie Fagel",

year = "2008",

language = "English",

volume = "39",

pages = "179--195",

journal = "Journal of Paleolimnology",

issn = "0921-2728",

publisher = "Springer Netherlands",

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TY - JOUR

T1 - Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40°S)

AU - Bertrand, Sebastien

AU - Charlet, Francois

AU - Charlier, Bernard

AU - Renson, Virginie

AU - Fagel, Nathalie

PY - 2008

Y1 - 2008

N2 - This paper presents a multi-proxy climate record of an 11 m long core collected in Lago Puyehue (southern Chile, 40°S) and extending back to 18,000 cal yr BP. The multi-proxy analyses include sedimentology, mineralogy, grain size, geochemistry, loss-on-ignition, magnetic susceptibility and radiocarbon dating. Results demonstrate that sediment grain size is positively correlated with the biogenic sediment content and can be used as a proxy for lake paleoproductivity. On the other hand, the magnetic susceptibility signal is correlated with the aluminium and titanium concentrations and can be used as a proxy for the terrigenous supply.

AB - This paper presents a multi-proxy climate record of an 11 m long core collected in Lago Puyehue (southern Chile, 40°S) and extending back to 18,000 cal yr BP. The multi-proxy analyses include sedimentology, mineralogy, grain size, geochemistry, loss-on-ignition, magnetic susceptibility and radiocarbon dating. Results demonstrate that sediment grain size is positively correlated with the biogenic sediment content and can be used as a proxy for lake paleoproductivity. On the other hand, the magnetic susceptibility signal is correlated with the aluminium and titanium concentrations and can be used as a proxy for the terrigenous supply.

KW - Paleoclimate

KW - Lake record

M3 - Article

VL - 39

SP - 179

EP - 195

JO - Journal of Paleolimnology

JF - Journal of Paleolimnology

SN - 0921-2728

ER -

Climate variability of southern Chile since the Last Glacial Maximum: a continuous sedimentological record from Lago Puyehue (40°S)

Abstract

Keywords

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