Stratigraphy of organic-rich deposits in floodplain environments: examples from the upper Odra River basin

Loading...
Thumbnail Image

Date

2012

Advisor

Editor

Journal Title

Journal ISSN

Volume Title

Publisher

Wydział Nauk Geograficznych i Geologicznych UAM

Title alternative

Abstract

Macrofossil analysis and radiocarbon dating were used to determine the age, composition and succession pattern of organic-rich deposits infilling oxbows and flood basins in the Rivers Kłodnica, Odra and Osobłoga valleys (southern Poland). Both detrital sediments representing the aquatic or terrestrial environments as well as five types of peat accumulated in amphibious or peatland conditions have been identified in cores analyzed. Studies have shown that an accumulation of organic-rich deposits was commonly initiated by terrestrialisation and was typically occurred under eutrophic conditions. In such circumstances, deposit sequences usually begin with aquatic detrital sediment (gyttja), or possibly brown-moss or reed peat. These deposits normally pass into sedge-reed peat and then alder peat. If the accumulation of organic-rich deposits was initiated by paludification, alder peat appears in the lowest sections of the fens. In the upper parts of the sequences, apart from wood peat, organic deposits dominated by sedge remains are also present. The latter were accumulated, probably, as an indirect effect of human activities in the floodplains.

Description

Sponsor

Keywords

macrofossils, organic matter, detritus deposits, peat, Holocene

Citation

Quaestiones Geographicae vol. 31 (3), 2012, s. 107-117

Seria

ISBN

978-83-62662-62-3

ISSN

0137-477X

DOI

Title Alternative

Rights Creative Commons

Creative Commons License

Uniwersytet im. Adama Mickiewicza w Poznaniu
Biblioteka Uniwersytetu im. Adama Mickiewicza w Poznaniu
Ministerstwo Nauki i Szkolnictwa Wyższego