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Came, Rosemarie E; Oppo, Delia W; Curry, William B; Lynch-Stieglitz, Jean (2014): (Table 1) Age determination of sediment cores OCE205-2-100GGGC and KNR166-2-31 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.832435, Supplement to: Came, RE et al. (2008): Deglacial variability in the surface return flow of the Atlantic meridional overturning circulation. Paleoceanography, 23(1), PA1217, https://doi.org/10.1029/2007PA001450

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Abstract:
Benthic foraminiferal Cd/Ca from a Florida Current sediment core documents the history of the northward penetration of southern source waters within the surface return flow of the Atlantic meridional overturning circulation (AMOC). Cd seawater estimates (CdW) indicate that intermediate-depth southern source waters crossed the equator and contributed to the Florida Current during the Bølling-Allerød warm period of the last deglaciation, consistent with evidence of only a modest AMOC reduction compared to today. The CdW estimates also provide the first paleoceanographic evidence of a reduction in the influence of intermediate-depth southern source waters within the Florida Current during the Younger Dryas, a deglacial cold event characterized by a weak North Atlantic AMOC. Our results reveal a close correspondence between the northward penetration of intermediate-depth southern source waters and the influence of North Atlantic Deep Water, suggesting a possible link between intermediate-depth southern source waters and the strength of the Atlantic AMOC.
Further details:
Hughen, Konrad A; Southon, John R; Lehman, Scott J; Bertrand, Chanda J H; Turnbull, J (2006): Marine-derived 14C calibration and activity record for the past 50,000 years updated from the Cariaco Basin. Quaternary Science Reviews, 25(23-24), 3216-3227, https://doi.org/10.1016/j.quascirev.2006.03.014
Stuiver, Minze; Reimer, Paula J (1993): Extended 14C data base and revised CALIB 3.0 14C age calibration program. Radiocarbon, 35(1), 215-230, https://doi.org/10.1017/S0033822200013904
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Coverage:
Median Latitude: 25.143170 * Median Longitude: -80.664580 * South-bound Latitude: 24.219670 * West-bound Longitude: -83.295830 * North-bound Latitude: 26.066670 * East-bound Longitude: -78.033330
Date/Time Start: 2002-01-11T00:00:00 * Date/Time End: 2002-01-11T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 1.600 m
Event(s):
KNR166-2-31 (KNR166-2-31JPC)  * Latitude: 24.219670 * Longitude: -83.295830 * Date/Time: 2002-01-11T00:00:00 * Elevation: -751.0 m * Recovery: 7.51 m * Location: Florida Strait * Campaign: KNR166-2 (KN166-2) * Basis: Knorr * Method/Device: Piston corer (PC)
OCE205-2-100GGC (OCE205-2-100GGGC)  * Latitude: 26.066670 * Longitude: -78.033330 * Elevation: -1057.0 m * Location: North Atlantic * Method/Device: Gravity corer (GC) * Comment: R/V Oceanus cruise 205-2
Comment:
Accelerator mass spectrometer (AMS) radiocarbon dates were converted to calendar age using the online calibration program Calib 5.02 (Stuiver and Reimer, 1993), the Marine04 calibration data set (Hughen et al., 2004), and a reservoir correction of 400 years.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 DEPTH, sediment/rockDepth sedmGeocode
3 Age, dated materialDated materialCame, Rosemarie E
4 Laboratory code/labelLab labelCame, Rosemarie ENOSAMS is National Ocean Sciences Accelerator Mass Spectrometer Facility
5 Age, datedAge datedkaCame, Rosemarie EAge, 14C AMS
6 Age, dated standard deviationAge dated std dev±Came, Rosemarie EAge, 14C AMS
7 Calendar age, minimum/youngCal age minka BPCame, Rosemarie EAge, 14C calibrated1 sigma
8 Calendar age, maximum/oldCal age maxka BPCame, Rosemarie EAge, 14C calibrated1 sigma
9 Calendar ageCal ageka BPCame, Rosemarie EAge, 14C calibrated
10 Calendar age, minimum/youngCal age minka BPCame, Rosemarie EAge, 14C calibrated2 sigma
11 Calendar age, maximum/oldCal age maxka BPCame, Rosemarie EAge, 14C calibrated2 sigma
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
209 data points

Data

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

1 
Event		2 
Depth sed [m]		3 
Dated material		4 
Lab label
(NOSAMS is National Ocean Scie...)		5 
Age dated [ka]
(Age, 14C AMS)		6 
Age dated std dev [±]
(Age, 14C AMS)		7 
Cal age min [ka BP]
(1 sigma, Age, 14C calibrated)		8 
Cal age max [ka BP]
(1 sigma, Age, 14C calibrated)		9 
Cal age [ka BP]
(Age, 14C calibrated)		10 
Cal age min [ka BP]
(2 sigma, Age, 14C calibrated)		11 
Cal age max [ka BP]
(2 sigma, Age, 14C calibrated)
OCE205-2-100GGC 0.070Globigerinoides sacculiferOS-1811.040.0300.5670.5810.6130.5440.663
OCE205-2-100GGC0.0700.5940.648
OCE205-2-100GGC0.170Globigerinoides sacculiferOS-277562.250.0401.8071.9111.8561.7371.964
OCE205-2-100GGC0.310Globigerinoides sacculiferOS-277573.150.0402.8642.9932.9362.8103.070
OCE205-2-100GGC0.630Globigerinoides sacculiferOS-277585.150.0455.4725.5665.5155.4025.611
OCE205-2-100GGC0.730Globigerinoides sacculiferOS-277595.770.0406.1656.2576.2006.0856.285
OCE205-2-100GGC0.800Globigerinoides sacculiferOS-278346.850.0457.3237.4137.3687.2687.450
OCE205-2-100GGC0.800Globigerinoides sacculiferOS-1806.470.0556.8847.0496.9706.8247.140
OCE205-2-100GGC0.920Globigerinoides sacculiferOS-278358.440.0858.9599.1979.0598.7759.294
OCE205-2-100GGC1.000Globigerinoides sacculiferOS-1788.870.0559.4649.5749.5259.4279.668
OCE205-2-100GGC1.090Globigerinoides sacculiferOS-2783610.400.05511.29411.43311.46811.24311.707
OCE205-2-100GGC1.09011.47811.624
OCE205-2-100GGC1.160Globigerinoides sacculiferOS-2783711.750.11013.11813.30313.21813.02013.415
OCE205-2-100GGC1.200Globigerinoides sacculiferOS-17612.000.04513.34713.48313.42713.31013.586
OCE205-2-100GGC1.600Globigerinoides sacculiferOS-17423.800.11027.800
KNR166-2-31 0.005Globigerinoides sacculiferOS-394241.640.0401.1661.2541.2041.1001.283
KNR166-2-310.280Globigerinoides sacculiferOS-501844.380.0454.4374.5824.5264.4014.690
KNR166-2-310.640Globigerinoides sacculiferOS-424607.310.0507.7087.8317.7737.6637.899
KNR166-2-310.720Globigerinoides sacculiferOS-520989.110.05010.20910.29610.26410.19510.407
KNR166-2-310.860Globigerinoides sacculiferOS-5594810.400.05511.29411.43311.46811.24311.707
KNR166-2-310.960Globigerinoides sacculiferOS-5034511.000.05512.40812.44512.65512.38012.526
KNR166-2-311.120Globigerinoides sacculiferOS-4246112.050.07513.40113.59813.50013.32213.684
KNR166-2-311.280Globigerinoides sacculiferOS-5593111.800.05013.21313.30213.25913.15913.363
KNR166-2-311.500Globigerinoides sacculifer and G. ruberOS-5594913.750.08015.62616.03215.84215.44016.267
KNR166-2-311.600Globigerinoides ruberOS-4246216.650.16019.19819.53719.39719.04819.612
KNR166-2-311.60019.65619.806