Citation:

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): (Table DR1) Age determination of sediment cores from the Amundsen Sea. PANGAEA, https://doi.org/10.1594/PANGAEA.773979

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): (Table 2) Age determination of sediment core PS69/288-3. PANGAEA, https://doi.org/10.1594/PANGAEA.835449

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

Project(s):

Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)

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: (PS69) * Basis: * Method/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: (PS75) * Basis: * Method/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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Kuhn, Gerhard
2	Laboratory code/label	Lab label		Kuhn, Gerhard
3	Depth, composite	Depth comp	mcd	Kuhn, Gerhard
4	DEPTH, sediment/rock	Depth sed	m	Kuhn, Gerhard		Geocode – core depth
5	Depth, reference	Depth ref	m	Kuhn, Gerhard		includes second sample at depth
6	Age, dated material	Dated material		Kuhn, Gerhard
7	Age, dated	Age dated	ka	Kuhn, Gerhard	Age, 14C AMS
8	Age, dated standard deviation	Age dated std dev	±	Kuhn, Gerhard	Age, 14C AMS	1 sigma
9	Reservoir effect/correction	Res effect	a	Kuhn, Gerhard		±100 a
10	Calendar age, minimum/young	Cal age min	ka BP	Kuhn, Gerhard	Age, 14C calibrated, CALIB 7.0.2
11	Calendar age, maximum/old	Cal age max	ka BP	Kuhn, Gerhard	Age, 14C calibrated, CALIB 7.0.2
12	Calendar age	Cal age	ka BP	Kuhn, Gerhard	Age, 14C calibrated, CALIB 7.0.2

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

45 data points

Data

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

1 Event	2 Lab label	3 Depth comp [mcd]	4 Depth sed [m]	5 Depth ref [m]	6 Dated material	7 Age dated [ka]	8 Age dated std dev [±]	9 Res effect [a]	10 Cal age min [ka BP]	11 Cal age max [ka BP]	12 Cal age [ka BP]
PS69/288-3	338486	3.24	3.18		pF, bF	8.74	0.05	1300	8.177	8.402	8.290
PS69/288-3	337427	3.44	3.38		pF, bF	8.64	0.04	1300	8.101	8.330	8.216
PS69/288-3	331574	4.04	3.98		pF, bF	8.72	0.04	1300	8.171	8.383	8.277
PS69/288-3	337428	4.64	4.58		pF, bF	9.02	0.04	1300	8.447	8.749	8.598
PS75/214-1	300846		4.80	4.97	F	11.09	0.05	1300	11.042	11.331	11.187