Lantzsch, Hendrik; Hanebuth, Till J J; Bender, Vera Barbara (2010): (Table 2) Radiocarbon dates and age calibration. PANGAEA, https://doi.org/10.1594/PANGAEA.738404, Supplement to: Lantzsch, Hendrik; Bender, Vera Barbara; Hanebuth, Till J J (2009): Holocene evolution of mud depocentres on a high-energy, low-accumulation shelf (NW Iberia). Quaternary Research, 72(3), 325-336, https://doi.org/10.1016/j.yqres.2009.07.009
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The high-energy, low-accumulation NW Iberian shelf features three confined Holocene mud depocentres. Here, we show that the evolution of such depocentres follows successive steps. The flooding of inner shelf zones and river catchment areas by the late deglacial sea-level rise provided the precondition for shelf mud deposition. Following this, the Holocene deceleration of the sea-level rise caused a rapid refill of the accommodation space within river valleys. Subsequently, the export of major amounts of fines was initiated. The initial onset and loci of shelf mud deposition were related to deposition-favouring conditions in mid-shelf position or to the presence of morphological highs, which act as sediment traps by providing protection against stronger hydrodynamic energy. The detailed reconstruction of the Holocene depocentre evolution shows for the first time that the expansion of such shelf mud deposits cannot only occur by linear growth off the associated sediment source. Rather, they might develop around centres that are fully disconnected from the source of original sediment supply, and expand later into specific directions. Based on these differences and on the connection of the individual mud depocentres to the material source we propose a conceptual subdivision of the group "mid-shelf mud depocentres".
Median Latitude: 42.237814 * Median Longitude: -9.120795 * South-bound Latitude: 41.551028 * West-bound Longitude: -9.268000 * North-bound Latitude: 42.816667 * East-bound Longitude: -8.974167
Date/Time Start: 2006-08-22T07:20:00 * Date/Time End: 2008-06-09T06:24:00
Minimum DEPTH, sediment/rock: 1.00 m * Maximum DEPTH, sediment/rock: 4.88 m
GeoB11002-3 * Latitude: 42.166694 * Longitude: -8.990167 * Date/Time: 2006-08-22T07:20:00 * Elevation: -111.0 m * Recovery: 4.39 m * Campaign: POS342 * Basis: Poseidon * Method/Device: Vibro corer (VC)
GeoB11003-3 * Latitude: 42.166833 * Longitude: -9.040139 * Date/Time: 2006-08-22T09:08:00 * Elevation: -129.0 m * Recovery: 4.54 m * Campaign: POS342 * Basis: Poseidon * Method/Device: Vibro corer (VC)
Lab no: Radiocarbon laboratory: KIA = Leibniz Laboratory in Kiel (Germany); Poz = Poznan Radiocarbon Laboratory (Poland).
Material: bF = benthic foraminifers; E. crispum = Elphidium crispum (monospecific sample); bv = bivalve; gp = gastropod.
Age, minimum/young and Age, maximum/old: For reservoir correction, the conventional age of 400 years is applied using CALIB 5.0.1. (Stuiver et al., 1998).
d: Age calibration is based on the function of Bard et al. (1998).
|#||Name||Short Name||Unit||Principal Investigator||Method/Device||Comment|
|2||Latitude of event||Latitude|
|3||Longitude of event||Longitude|
|4||Elevation of event||Elevation||m|
|6||Sample, optional label/labor no||Lab no||Lantzsch, Hendrik|
|7||Age, dated material||Dated material||Lantzsch, Hendrik|
|8||Age, dated||Age dated||ka||Lantzsch, Hendrik||Age, 14C AMS|
|9||Age, dated standard deviation||Age dated std dev||±||Lantzsch, Hendrik|
|10||Age, minimum/young||Age min||ka||Lantzsch, Hendrik||see comment||1 Sigma|
|11||Age, maximum/old||Age max||ka||Lantzsch, Hendrik||see comment||1 Sigma|
|12||Age, comment||Comm||Lantzsch, Hendrik|
177 data points