Citation:

j.quascirev.2010.06.011

Name: (Table 1) Radiocarbon ages and different calibrated ages for sediment core HLY0503-18TC obtained during the HOTRAX expedition
Published: 2010
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

A short sediment core from a local depression forming an intra basin on the Lomonosov Ridge, was retrieved during the Healy-Oden Trans-Arctic Expedition 2005 (HOTRAX). It contains a record of the Marine Isotope Stages (MIS) 1-3 showing exceptionally high abundances of calcareous microfossils during parts of MIS 3. Based on radiocarbon dating, linear sedimentation rates of 7-9 cm/ka persist during the last deglaciation. The Last Glacial Maximum (LGM) is partly characterized by a hiatus. Planktic foraminiferal abundance variations of Neogloboquadrina pachyderma sinistral and calcareous nannofossils reflect changes in Arctic Ocean summer sea ice coverage and probably inflow of subpolar North Atlantic water. Calibration of the radiocarbon ages, using modeled reservoir corrections from previous studies and the microfossil abundance record of the studied core, results in marine reservoir ages of 1400 years or more, at least during the last deglaciation. Paired benthic-planktic radiocarbon dated foraminiferal samples indicate a slow decrease in age difference between surface and bottom waters from the Lateglacial to the Holocene, suggesting circulation and ventilation changes.

Further details:

Fairbanks, Richard G; Mortlock, Richard A; Chiu, Tzu-Chien; Cao, L; Kaplan, Alexey; Guilderson, Thomas P; Fairbanks, Todd W; Bloom, Arthur L; Grootes, Pieter Meiert; Nadeau, Marie-Josée (2005): Radiocarbon calibration curve spanning 0 to 50,000 years BP based on paired 230Th/234U/238U and 14C dates on pristine corals. Quaternary Science Reviews, 24(16-17), 1781-1796, https://doi.org/10.1016/j.quascirev.2005.04.007

Hughen, Konrad A; Lehman, Scott J; Southon, John R; Overpeck, Jonathan T; Marchal, Olivier; Herring, C; Turnbull, J (2004): 14C Activity and Global Carbon Cycle Changes over the Past 50,000 Years. Science, 303(5655), 202-207, https://doi.org/10.1126/science.1090300

Project(s):

International Polar Year (2007-2008) (IPY)

Coverage:

Latitude: 88.450000 * Longitude: 146.561000

Date/Time Start: 2005-09-09T00:00:00 * Date/Time End: 2005-09-09T00:00:00

Minimum DEPTH, sediment/rock: 0.009 m * Maximum DEPTH, sediment/rock: 0.577 m

Event(s):

HLY0503-18TC * Latitude: 88.450000 * Longitude: 146.561000 * Date/Time: 2005-09-09T00:00:00 * Elevation: -2598.0 m * Location: Lomonosov Ridge, Arctic Ocean * Campaign: (Healy-Oden Trans Arctic Expedition 2005 (HOTRAX05)) * Basis: Healy * Method/Device: Trigger corer (TC)

Comment:

Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Age, dated material	Dated material		Hanslik, Daniela
3	Sample ID	Sample ID		Hanslik, Daniela
4	Age, dated	Age dated	ka BP	Hanslik, Daniela	Age, 14C conventional	ka BP
5	Age, dated standard deviation	Age dated std dev	±	Hanslik, Daniela	Age, 14C conventional
6	Calendar age	Cal age	ka BP	Hanslik, Daniela	Age, 14C calibrated	DeltaR = 0 yrs
7	Calendar age, standard deviation	Cal age std dev	±	Hanslik, Daniela	Age, 14C calibrated	DeltaR = 0 yrs
8	Calendar age	Cal age	ka BP	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 300 yrs
9	Calendar age, standard deviation	Cal age std dev	±	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 300 yrs
10	Calendar age	Cal age	ka BP	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 650 yrs
11	Calendar age, standard deviation	Cal age std dev	±	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 650 yrs
12	Calendar age	Cal age	ka BP	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 1000 yrs
13	Calendar age, standard deviation	Cal age std dev	±	Hanslik, Daniela	Age, 14C milieu/reservoir corrected and calibrated	DeltaR = 1000 yrs
14	Method comment	Method comm		Hanslik, Daniela

License:

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

Size:

182 data points

Data

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

1 Depth sed [m]	2 Dated material	3 Sample ID	4 Age dated [ka BP] (ka BP, Age, 14C conventional)	5 Age dated std dev [±] (Age, 14C conventional)	6 Cal age [ka BP] (DeltaR = 0 yrs, Age, 14C cali...)	7 Cal age std dev [±] (DeltaR = 0 yrs, Age, 14C cali...)	8 Cal age [ka BP] (DeltaR = 300 yrs, Age, 14C mi...)	9 Cal age std dev [±] (DeltaR = 300 yrs, Age, 14C mi...)	10 Cal age [ka BP] (DeltaR = 650 yrs, Age, 14C mi...)	11 Cal age std dev [±] (DeltaR = 650 yrs, Age, 14C mi...)	12 Cal age [ka BP] (DeltaR = 1000 yrs, Age, 14C m...)	13 Cal age std dev [±] (DeltaR = 1000 yrs, Age, 14C m...)	14 Method comm
0.009	Neogloboquadrina pachyderma	LuS 7775	2.690	0.07	2.435	0.235	2.050	0.210	1.605	0.195	1.225	165	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.014	Mix benthic	LuS 7776	3.710	0.11
0.077	Neogloboquadrina pachyderma	LuS 7347	7.220	0.08	7.705	0.175	7.415	0.155	7.070	0.200	6.670	210	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.077	Cibicides wuellerstorfi	LuS 7346	7.930	0.09
0.112	Neogloboquadrina pachyderma	LuS 7777	8.795	0.09	9.465	0.225	9.145	0.255	8.675	0.265	8.235	205	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.112	Mix benthic	LuS 7778	8.890	0.15
0.152	Neogloboquadrina pachyderma	LuS 7779	10.240	0.10	11.375	0.335	10.870	0.270	10.430	0.220	9.985	305	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.177	Neogloboquadrina pachyderma	LuS 7348	11.480	0.11	13.020	0.170	12.675	0.285	12.335	0.405	11.635	405	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.217	Neogloboquadrina pachyderma	LuS 7886	11.890	0.12	13.375	0.255	13.085	0.195	12.745	0.335	12.410	390	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.222	Neogloboquadrina pachyderma	LuS 7781	8.285	0.09	8.820	0.250	8.470	0.230	8.115	0.195	7.750	180	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.257	Neogloboquadrina pachyderma	LuS 7887	11.720	0.12	13.180	0.230	12.995	0.175	12.585	0.305	12.060	620	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.277	Neogloboquadrina pachyderma	LuS 7349	12.535	0.11	14.055	0.325	13.675	0.255	13.370	0.240	13.050	180	calibrated with Marine04 data set (Hughen et al. 2004) in OxCal 4.0 and 2SD
0.277	Mix benthic	LuS 7782	13.750	0.14
0.297	Neogloboquadrina pachyderma	LuS 7888	23.250	0.35	27.437	0.149	27.096	0.419	26.693	0.423	26.272	448	callibration with Fairbanks0107 (Fairbanks et al. 2005) and 1SD
0.312	Neogloboquadrina pachyderma	LuS 7783	26.100	0.60	30.873	0.718	30.512	0.753	30.070	0.783	29.618	783	callibration with Fairbanks0107 (Fairbanks et al. 2005) and 1SD
0.337	Neogloboquadrina pachyderma	LuS 7889	38.000
0.357	Neogloboquadrina pachyderma	LuS 7784	41.000	4.00
0.397	Neogloboquadrina pachyderma	LuS 7351	>42.500
0.397	Cibicides wuellerstorfi	LuS 7350	>44.000
0.437	Neogloboquadrina pachyderma	LuS 7352	>42.000
0.577	Neogloboquadrina pachyderma	LuS 7354	>42.000
0.577	Cibicides wuellerstorfi	LuS 7353	31.900	2.00