Identification of marker horizon in bottom sediments of the Onega Periglacial Lake

Identification of marker horizon in bottom sediments of the Onega Periglacial Lake

A study reports the identificaiton of a marker horizon in bottom sediments of the Onega Periglacial Lake. A sharp decrease in sedimentation rates and OM input fostered the oxidation of bottom sediments. This is reflected in the formation of the pinkish brown, iron oxide-rich, 30-cm-thick horizon of...

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Veröffentlicht in:Doklady earth sciences 2006-02, Vol.407 (1), p.213-216
1. Verfasser: Demidov, IN
Format: Artikel
Sprache:eng
Schlagworte:
Bottom sediments
Geochemistry
Iron oxides
Lakes
Limnology
Sedimentation rates
Sediments
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Zusammenfassung:A study reports the identificaiton of a marker horizon in bottom sediments of the Onega Periglacial Lake. A sharp decrease in sedimentation rates and OM input fostered the oxidation of bottom sediments. This is reflected in the formation of the pinkish brown, iron oxide-rich, 30-cm-thick horizon of varved clays over the entire vast area of the Onega periglacial lake.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X06020127