Universität zu Köln

Elschner, Annastasia, Scheder, Juliane, Bungenstock, Friederike ORCID: 0000-0001-6774-1362, Bartholomae, Alexander, Becker, Thorsten M., Capperucci, Ruggero M., Enters, Dirk ORCID: 0000-0002-0484-541X, Karle, Martina, Schluetz, Frank, Wehrmann, Achim and Hoffmann, Goesta (2021). Microfauna- and sedimentology-based facies analysis for palaeolandscape reconstruction in the back-barrier area of Norderney (NW Germany). Neth. J. Geosci., 100. CAMBRIDGE: CAMBRIDGE UNIV PRESS. ISSN 1573-9708

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Abstract

Palaeolandscape reconstructions at the German North Sea coast are essential for the understanding of coastal changes and dynamic landscape-forming processes. This study contributes to reconstructing Holocene coastal changes in the back-barrier area of the East Frisian island of Norderney and draws conclusions on the local palaeogeography. Five sediment cores were analysed in terms of sedimentology (grain-size distribution), geochemistry (TOC, TIC, N, C/N), microfauna (foraminifers and ostracods) and 13 radiocarbon dates. In order to identify driving environmental factors and support the facies interpretation, multivariate statistics (PCA) were carried out. Additional cores from the surrounding area (WASA Project and 'Landesamt fur Bergbau, Energie und Geologie' (LBEG) Hannover) enabled correlation of the investigated cores over a transect of similar to 6 km, showing six depositional environments, which can be used for landscape reconstruction. Deposition starts with periglacial (aeolian and glaciofluvial) Pleistocene sediments, with subsequent pedogenesis followed by swamp conditions that develop into a salt marsh. The overlying tidal-flat sediments are partially cut by (fossil and recent) channel deposits. A hiatus at the base of the tidal-flat deposits that spans some 3000 years hints at their reworking caused by a combination of antrophogenic coastal protection measures and the impact of storms. Furthermore, based on the profile correlation and the age data, a widespread salt-marsh area with a minimum age of similar to 4000 cal BP is defined for the 'Hohes Riff' in the southwestern back-barrier of Norderney Island.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Elschner, Annastasia UNSPECIFIED UNSPECIFIED UNSPECIFIED Scheder, Juliane UNSPECIFIED UNSPECIFIED UNSPECIFIED Bungenstock, Friederike UNSPECIFIED orcid.org/0000-0001-6774-1362 UNSPECIFIED Bartholomae, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Becker, Thorsten M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Capperucci, Ruggero M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Enters, Dirk UNSPECIFIED orcid.org/0000-0002-0484-541X UNSPECIFIED Karle, Martina UNSPECIFIED UNSPECIFIED UNSPECIFIED Schluetz, Frank UNSPECIFIED UNSPECIFIED UNSPECIFIED Wehrmann, Achim UNSPECIFIED UNSPECIFIED UNSPECIFIED Hoffmann, Goesta UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-587886
DOI:	10.1017/njg.2020.16
Journal or Publication Title:	Neth. J. Geosci.
Volume:	100
Date:	2021
Publisher:	CAMBRIDGE UNIV PRESS
Place of Publication:	CAMBRIDGE
ISSN:	1573-9708
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language Geosciences, Multidisciplinary Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58788