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Geochemical Study of a Crater Lake: Lake Pavin, France: A View through Li-O-H Isotopes

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Frédérick Gal

Résumé

Here we report δ18O values and for the first time δD and lithium isotopic data for the Pavin crater lake (French Massif Central). In its deeper unmixed part, this meromictic lake presents low H and O isotope compositions as a result of CO2 intrusion and the presence of mineral water ingress. This influence of sub-lacustrine water contribution is confirmed by lithium isotopes with low δ7Li values.

Dates et versions

hal-01314419 , version 1 (11-05-2016)

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Frédérick Gal, Alain Gadalia, Romain Millot. Geochemical Study of a Crater Lake: Lake Pavin, France: A View through Li-O-H Isotopes. 11th Applied Isotope Geochemistery Conference AIG-11, Sep 2015, Orléans, France. pp.189-193, ⟨10.1016/j.proeps.2015.07.045⟩. ⟨hal-01314419⟩

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