Not logged in
Data Publisher for Earth & Environmental Science

Zühlsdorff, Christine; Wien, Katharina; Stuut, Jan-Berend W; Henrich, Rüdiger (2007): AMS radiocarbon dates on ten monospecific samples of planktonic foraminifer Globigerinoides ruber of sediment core GeoB8509-2 (Table 1). PANGAEA,, Supplement to: Zühlsdorff, C et al. (2007): Late Quaternary sedimentation within a submarine channel-level system offshore Cap Timiris, Mauritania. Marine Geology, 240(1-4), 217-234,

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Aeolian and fluvial sediment transport to the Atlantic Ocean offshore Mauritania were reconstructed based on grain-size distributions of the carbonate-free silt fraction of three marine sediment records of Cap Timiris Canyon to monitor the climatic evolution of present-day arid north-western Africa. During the late Pleistocene, predominantly coarse-grained particles, which are interpreted as windborne dust, characterise glacial dry climate conditions with a low sea level and extended sand seas that reach onto the exposed continental shelf off Mauritania. Subsequent particle fining and the abrupt decrease in terrigenous supply are attributed to humid climate conditions and dune stabilisation on the adjacent African continent with the onset of the Holocene humid period. Indications for an ancient drainage system, which was discharging fluvial mud offshore via Cap Timiris Canyon, are provided by the finest end member for early to mid Holocene times. However, in comparison to the Senegal and Niger River further south, the river system connecting Cap Timiris Canyon with the Mauritanian hinterland was starved during the late Holocene and is non-discharging under present-day arid climate conditions.
Latitude: 19.450500 * Longitude: -18.089000
Date/Time Start: 2003-04-27T21:11:00 * Date/Time End: 2003-04-27T21:11:00
Minimum DEPTH, sediment/rock: 0.05 m * Maximum DEPTH, sediment/rock: 8.81 m
GeoB8509-2 * Latitude: 19.450500 * Longitude: -18.089000 * Date/Time: 2003-04-27T21:11:00 * Elevation: -2585.0 m * Recovery: 9.04 m * Campaign: M58/1 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: see core description
14C ages were calibrated using CALIB 5.0.1 (Stuiver and Reimer, 1993) and the marine 04.14c dataset (Hughen et al., 2004) assuming a conservative reservoir age of 500±50 years due to the upwelling regime.
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepthmGeocode
2Depth, compositeDepth compmcdZühlsdorff, Christine
3Age, datedAge datedkaZühlsdorff, ChristineAge, 14C AMS
4Age, dated standard deviationAge dated std dev±Zühlsdorff, ChristineAge, 14C AMS
5Calendar ageCal ageka BPZühlsdorff, ChristineAge, 14C calibratedBP
6Age, minimum/youngAge minkaZühlsdorff, ChristineAge, 14C calibrated1 sigma cal. age BP
7Age, maximum/oldAge maxkaZühlsdorff, ChristineAge, 14C calibrated1 sigma cal. age BP
8--Zühlsdorff, Christinerelative area
9Age, errorAge e±Zühlsdorff, Christine
10Globigerinoides ruber, δ13CG. ruber δ13C‰ PDBZühlsdorff, ChristineIsotope ratio mass spectrometry
11δ13C, standard deviationδ13C std dev±Zühlsdorff, ChristineIsotope ratio mass spectrometry
118 data points

Download Data

Download dataset as tab-delimited text (use the following character encoding: )

View dataset as HTML