Citation:

cp-13-317-2017

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Coverage:

Latitude: 57.290000 * Longitude: -48.370000

Minimum DEPTH, sediment/rock: 0.000 m * Maximum DEPTH, sediment/rock: 0.360 m

Event(s):

GS06-144-03 * Latitude: 57.290000 * Longitude: -48.370000 * Elevation: -3432.0 m * Location: Labrador Sea * Method/Device: Gravity corer (GC)

Comment:

We obtained a total of 12 accelerator mass spectrometry (AMS) 14C dates, based on the calcareous shells of the planktonic foraminifera Neogloboquadrina pachyderma (sinistral). The dates were analyzed on the Accelerator Mass Spectrometer at the Leibniz Labor für Altersbestimmung und Isotopenforschung in Kiel, Germany. Radiocarbon ages have been converted into calendar years using the CALIB (rev 5.0.1) software (Stuiver and Reimer, 1993) in conjunction with the Marine04 calibration dataset (Hughen et al., 2004). All dates were calibrated with a constant surface reservoir age of 400 years. The sample at 0 cm showed erroneous age because of severe addition of more than 100% modern carbon (pMC) and is assumed to be post-AD 1962 (relative to the increase in bomb radiocarbon levels in the North Atlantic region). Core was collected in 2006. (Cesium spike in 210Pb in upper 12 cm of the core sediments confirm post-AD 1964 age)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Laboratory code/label	Lab label		Alonso-Garcia, Montserrat		KIA - Leibniz Labor für Altersbestimmung und Isotopenforschung, Kiel, Germany
2	DEPTH, sediment/rock	Depth sed	m	Alonso-Garcia, Montserrat		Geocode
3	Age, dated material	Dated material		Alonso-Garcia, Montserrat
4	Age, dated	Age dated	ka	Alonso-Garcia, Montserrat	Age, 14C AMS
5	Age, dated standard error	Age std e	±	Alonso-Garcia, Montserrat	Age, 14C AMS	1 sigma
6	Age, comment	Comm		Alonso-Garcia, Montserrat
7	Age	Age	a AD/CE	Alonso-Garcia, Montserrat	Age, 14C calibrated, CALIB 6.1.0 (Stuiver et al., 2014) and Marine09 calibration
8	Age, lower confidence level	Age LCL	a AD/CE	Alonso-Garcia, Montserrat	Age, 14C calibrated, CALIB 6.1.0 (Stuiver et al., 2014) and Marine09 calibration	1 sigma range
9	Age, upper confidence level	Age UCL	a AD/CE	Alonso-Garcia, Montserrat	Age, 14C calibrated, CALIB 6.1.0 (Stuiver et al., 2014) and Marine09 calibration	1 sigma range
10	Comment	Comment		Alonso-Garcia, Montserrat

License:

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

Size:

86 data points

Data

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

1 Lab label	2 Depth sed [m]	3 Dated material	4 Age dated [ka]	5 Age std e [±]	6 Comm	7 Age [a AD/CE]	8 Age LCL [a AD/CE]	9 Age UCL [a AD/CE]	10 Comment
KIA34239	0.000	Neogloboquadrina pachyderma (sinistral)	0.145	0.020	levels of more than 100% modern carbon (pMC) and is assumed to be post-AD	1984	2006	1962	Bomb 14C
KIA41679	0.020	Neogloboquadrina pachyderma (sinistral)	0.555	0.030		1739	1701	1776
KIA43514	0.045	Neogloboquadrina pachyderma (sinistral)	0.640	0.025		1669	1647	1690
KIA43515	0.055	Neogloboquadrina pachyderma (sinistral)	0.740	0.025		1563	1526	1600
KIA41681	0.080	Neogloboquadrina pachyderma (sinistral)	0.760	0.025		1540	1497	1582
KIA36383	0.100	Neogloboquadrina pachyderma (sinistral)	0.815	0.025		1490	1466	1514
KIA36384	0.120	Neogloboquadrina pachyderma (sinistral)	0.890	0.025		1447	1428	1465
KIA36385	0.180	Neogloboquadrina pachyderma (sinistral)	1.140	0.025		1266	1241	1291
KIA36386	0.220	Neogloboquadrina pachyderma (sinistral)	1.225	0.035		1192	1145	1238
KIA36387	0.280	Neogloboquadrina pachyderma (sinistral)	1.460	0.025		948	910	986
KIA41682	0.320	Neogloboquadrina pachyderma (sinistral)	1.440	0.030		968	926	1009
KIA34241	0.360	Neogloboquadrina pachyderma (sinistral)	1.600	0.025		777	734	819