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Image for: Verstädterung – die historische Ursache für niedrigen Sauerstoffgehalt in vielen Seen Europas


Gefrierkern aus 66 m Wassertiefe des Baldeggersees (Schweiz). Der Übergang des oxischen (helle Sedimente, unten) zum anoxischen Zustand (Beginn der dunklen Laminationen, oben) erfolgte im Jahr 1885.
Gefrierkern aus 66 m Wassertiefe des Baldeggersees (Schweiz). Der Übergang des oxischen (helle Sedimente, unten) zum anoxischen Zustand (Beginn der dunklen Laminationen, oben) erfolgte im Jahr 1885.

"Varve Image Portal" der PAGES Varve Working Group

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