Atmospheric noble gases in lake sediment pore water as proxies for environmental change

Lake sediment pore water has been proposed as a noble gas archive for paleoenvironmental reconstruction, but appropriate experimental techniques have not been available until recently. Here we present noble gas concentrations measured in the sediment pore water of Lake Issyk‐Kul (Kyrgyzstan) which d...

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Published inGeophysical research letters Vol. 31; no. 4; pp. L04202 - n/a
Main Authors Brennwald, M. S., Peeters, F., Imboden, D. M., Giralt, S., Hofer, M., Livingstone, D. M., Klump, S., Strassmann, K., Kipfer, R.
Format Journal Article
LanguageEnglish
Published American Geophysical Union 01.02.2004
Blackwell Publishing Ltd
Subjects
Asia
General or miscellaneous
Geochemistry
Hydrology
Information Related to Geographic Region
Limnology
Trace elements
Kyrgyzstan, Issyk-Kul L
Kyrgyzstan, Ysyk-Koel L
Kyrgyzstan
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Summary:Lake sediment pore water has been proposed as a noble gas archive for paleoenvironmental reconstruction, but appropriate experimental techniques have not been available until recently. Here we present noble gas concentrations measured in the sediment pore water of Lake Issyk‐Kul (Kyrgyzstan) which demonstrate for the first time the value of the sediment pore water archive for paleoclimate reconstruction. The noble gas profiles in the sediment indicate that the salinity of the lake water during the mid‐Holocene was more than twice its present value of 6.0 g/kg, implying a 200‐m lower lake level.
Bibliography:istex:B0F1346FA0D50DA04757AE22105E08660EB93B52
ArticleID:2003GL019153
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ISSN:0094-8276
1944-8007
DOI:10.1029/2003GL019153