Hebbeln, Dierk; Scheurle, Carolyn; Lamy, Frank (2003): Sediment and stable carbon isotope record of the Helgoland mud area. PANGAEA, https://doi.org/10.1594/PANGAEA.711648, Supplement to: Hebbeln, D et al. (2003): Depositional history of the Helgoland mud area,German Bight, North Sea. Geo-Marine Letters, 23(2), 81-90, https://doi.org/10.1007/s00367-003-0127-0
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Abstract:
The Helgoland mud area in the German Bight is one of the very few sediment depocenters in the North Sea. Despite the shallowness of the setting (<30 m water depth), its topmost sediments provide a continuous and high-resolution record allowing the reconstruction of regional paleoenvironmental conditions for the time since ~400 a.d. The record reveals a marked shift in sedimentation around 1250 a.d., when average sedimentation rates drop from >13 to ~1.6 mm/year. Among a number of major environmental changes in this region during the Middle Ages, the disintegration of the island of Helgoland appears to be the most likely factor which caused the very high sedimentation rates prior to 1250 a.d. According to historical maps, Helgoland used to be substantially bigger at around 800 a.d. than today. After the shift in sedimentation, a continuous and highly resolved paleoenvironmental record reflects natural events, such as regional storm-flood activity, as well as human impacts at work at local to global scales, on sedimentation in the Helgoland mud area.
Related to:
Scheurle, Carolyn (2004): Climate development and its effect on the North Sea environment during the Late Holocene. PhD Thesis, Elektronische Dissertationen an der Staats- und Universitätsbibliothek Bremen, Germany, urn:nbn:de:gbv:46-diss000008399
Project(s):
Coverage:
Latitude: 54.111667 * Longitude: 8.036667
Date/Time Start: 1997-10-18T21:25:00 * Date/Time End: 1997-10-18T21:25:00
Event(s):
GeoB4801-1 * Latitude: 54.111667 * Longitude: 8.036667 * Date/Time: 1997-10-18T21:25:00 * Elevation: -25.0 m * Recovery: 11.41 m * Location: North Sea * Campaign: M40/0 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: SL-12 m
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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5 datasets
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Datasets listed in this publication series
- Hebbeln, D; Scheurle, C; Lamy, F (2003): (Fig. 4) High resolution record of coarse fraction, δ¹³Corg values and Zinc contents of sediment core GeoB4801-1. https://doi.org/10.1594/PANGAEA.315881
- Hebbeln, D; Scheurle, C; Lamy, F (2003): (Table 2) Overview of the AMS-14C dates in sediment core GeoB4801-1 from the Helgoland mud area. https://doi.org/10.1594/PANGAEA.315876
- Hebbeln, D; Scheurle, C; Lamy, F (2003): (Fig. 3) Gamma ray attenuation of sediment core GeoB4801-1. https://doi.org/10.1594/PANGAEA.315878
- Hebbeln, D; Scheurle, C; Lamy, F (2003): (Fig. 4) Size fraction and delta 13Corg of sediment core GeoB4801-1. https://doi.org/10.1594/PANGAEA.315877
- Hebbeln, D; Scheurle, C; Lamy, F (2003): (Fig. 4) Zinc contents of sediment core GeoB4801-1. https://doi.org/10.1594/PANGAEA.315882