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Kuhn, Gerhard; Hillenbrand, Claus-Dieter; Kasten, Sabine; Smith, James A; Nitsche, Frank-Oliver; Frederichs, Thomas; Wiers, Steffen; Ehrmann, Werner; Klages, Johann Philipp; Mogollón, José M (2017): (Table S2) Radiocarbon age control sediment cores from Pine Island Bay. PANGAEA, https://doi.org/10.1594/PANGAEA.873760, In supplement to: Kuhn, G et al. (2017): Evidence for a palaeo-subglacial lake on the Antarctic continental shelf. Nature Communications, 8, 15591, https://doi.org/10.1038/NCOMMS15591

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Related to:
Berkman, Paul Arthur; Forman, Steven L (1996): Pre-bomb radiocarbon and the reservoir correction for calcareous marine species in the Southern Ocean. Geophysical Research Letters, 23(4), 363-366, https://doi.org/10.1029/96GL00151
Hillenbrand, Claus-Dieter; Kuhn, Gerhard; Smith, James A; Gohl, Karsten; Graham, Alastair G C; Larter, Robert D; Klages, Johann Philipp; Downey, Rachel; Moreton, Steven Grahame; Forwick, Matthias; Vaughan, David G (2013): Grounding-line retreat of the West Antarctic Ice Sheet from inner Pine Island Bay. Geology, 41(1), 35-38, https://doi.org/10.1130/G33469.1
Smith, James A; Hillenbrand, Claus-Dieter; Kuhn, Gerhard; Klages, Johann Philipp; Graham, Alastair G C; Larter, Robert D; Ehrmann, Werner; Moreton, Steven Grahame; Wiers, Steffen; Frederichs, Thomas (2014): New constraints on the timing of West Antarctic Ice Sheet retreat in the eastern Amundsen Sea since the Last Glacial Maximum. Global and Planetary Change, 122, 224-237, https://doi.org/10.1016/j.gloplacha.2014.07.015
Coverage:
Median Latitude: -74.474230 * Median Longitude: -102.806315 * South-bound Latitude: -74.532660 * West-bound Longitude: -102.991300 * North-bound Latitude: -74.415800 * East-bound Longitude: -102.621330
Date/Time Start: 2006-03-13T19:51:00 * Date/Time End: 2010-03-16T16:59:00
Minimum DEPTH, sediment/rock: 3.18 m * Maximum DEPTH, sediment/rock: 4.80 m
Event(s):
PS69/288-3 * Latitude: -74.415800 * Longitude: -102.991300 * Date/Time: 2006-03-13T19:51:00 * Elevation: -772.0 m * Recovery: 9.12 m * Location: Amundsen Sea * Campaign: ANT-XXIII/4 (PS69) * Basis: Polarstern * Device: Gravity corer (GC) * Comment: 10 core sections: 0-0.16, 0.16-1.15, 1.15-2.15, 2.15-3.15, 3.15-4.14, 4.14-5.12, 5.12-6.12, 6.12-7.12, 7.12-8.12, 8.12-9.12 m; bag sample from below CC
PS75/214-1 * Latitude: -74.532660 * Longitude: -102.621330 * Date/Time: 2010-03-16T16:59:00 * Elevation: -641.0 m * Penetration: 10.5 m * Recovery: 7.72 m * Location: Pine Island Bay (inner shelf) * Campaign: ANT-XXVI/3 (PS75) * Basis: Polarstern * Device: Gravity corer (Kiel type) (SL) * Comment: 8 core sections: 0-0.73, 0.73-1.73, 1.73-2.73, 2.73-3.72, 3.72-4.72, 4.72-5.72, 5.72-6.72, 6.72-7.72 m, 1 sample nose from core cutter, 1 sample from core catcher, 1 sample from gravity core surface; foraminifera in near surface sediments, diamicton below; Redeployment of overpenetrated core PS75/161-1
Comment:
Uncorrected and calibrated AMS 14C dates on calcareous microfossils together with sample depth and dated material. A marine reservoir effect (= MRE) correction of 1300±100 years was applied (Berkman & Forman, 1996). The corrected 14C-dates were calibrated with the CALIB Radiocarbon Calibration Program version 7.0.2 (http://calib.qub.ac.uk/calib/) using the MARINE09 calibration dataset. We show the entire 1 sigma range for each calibrated age (Min, Max), but quote the mean age throughout the text. The upper three 14C-dates plot all between 8.1 to 8.4 cal. ka BP within their Min-Max 1 sigma ranges. The lowermost age of 8.6 cal. ka BP is the oldest and most reliable (minimum) age for the onset of full marine conditions at this core position. The AMS 14C dating was carried out at BETA Analytic Inc., Miami, Florida, U.S.A. Dates from core PS69/288-3 GC and PS75/214-1 GC have been previously published in Smith et al. (2014) and Hillenbrand et al. (2013), respectively. For this study we used and recalibrated the oldest date from core PS75/214-1 GC (no composite depth), which provides the minimum age for grounded ice retreat from inner Pine Island Bay following the LGM (Smith et al., 2014; Hillenbrand et al., 2013)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventKuhn, Gerhard
2Laboratory code/labelLab labelKuhn, Gerhard
3Depth, compositeDepth compmcdKuhn, Gerhard
4DEPTH, sediment/rockDepthmKuhn, GerhardGeocode – core depth
5Depth, referenceDepth refmKuhn, Gerhardincludes second sample at depth
6Age, dated materialDated materialKuhn, Gerhard
7Age, datedAge datedkaKuhn, GerhardAge, 14C AMS
8Age, dated standard deviationAge dated std dev±Kuhn, GerhardAge, 14C AMS1 sigma
9Reservoir effect/correctionRes effectaKuhn, Gerhard±100 a
10Calendar age, minimum/youngCal age minka BPKuhn, GerhardAge, 14C calibrated, CALIB 7.0.2
11Calendar age, maximum/oldCal age maxka BPKuhn, GerhardAge, 14C calibrated, CALIB 7.0.2
12Calendar ageCal ageka BPKuhn, GerhardAge, 14C calibrated, CALIB 7.0.2
Size:
45 data points

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