Citation:

PANGAEA.965379

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Abstract:

In July 2022 within the framework of an Alfred-Wegener-Institute-managed expedition and the Nunataryuk project, sediment core YC22_MR_7 was taken off the coast of Herschel Island, Canada, using a hand corer. Data sets were obtained to investigate carbon feedback from the sediments to the water column and atmosphere, using DIC concentrations and isotopic values. The local sediments are supplied primarily by organic carbon previously stored in adjacent permafrost soils (biomarker and bulk data), which erode and redeposit quickly (age model) on the ocean floor.

Sedimentary age model of core YC22_MR_7 assuming Constant Flux: Constant Sedimentation (CFCS) model (Appleby, 2001), based on data obtained with a HPGe gamma detector.

References:

Appleby, Peter G (2001): Chronostratigraphic techniques in recent sediments. Tracking Environmental Change Using Lake Sediments: Basin Analysis, Coring, and Chronological Techniques, 171–203

Project(s):

NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation (NUNATARYUK)

Funding:

Horizon 2020 (H2020), grant/award no. 773421 : NUNATARYUK, Permafrost thaw and the changing Arctic coast, science for socioeconomic adaptation

Coverage:

Latitude: 69.573203 * Longitude: -138.943794

Date/Time Start: 2022-07-07T00:00:00 * Date/Time End: 2022-07-07T00:00:00

Minimum DEPTH, sediment/rock: 0.015 m * Maximum DEPTH, sediment/rock: 0.245 m

Event(s):

CA-Land_2022_YukonCoast_MR_7 (YC22_MR_7) * Latitude: 69.573203 * Longitude: -138.943794 * Date/Time: 2022-07-07T00:00:00 * Elevation: -6.0 m * Location: Herschel Island, Yukon Territory, Canada * Campaign: (Yukon Coast 2022) * Basis: AWI Arctic Land Expedition * Method/Device: Hand corer (HCOR)

Comment:

#0 stands for n.d.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Ruben, Manuel Jannis		Geocode – Midpoint Depth
2	Lead-210	210Pb	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
3	Lead-210, error	210Pb e	±	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
4	Lead-214	214Pb	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
5	Lead-214, error	214Pb e	±	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
6	Bismuth-214	214Bi	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
7	Bismuth-214, error	214Bi e	±	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
8	Caesium-137	137Cs	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
9	Caesium-137, error	137Cs e	±	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
10	Americium-241	241Am	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
11	Actinium-228	228Ac	Bq/kg	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
12	Actinium-228, error	228Ac e	±	Ruben, Manuel Jannis	High-purity Germanium (HPGe) detector
13	Lead-210, supported	210Pb sup	Bq/kg	Ruben, Manuel Jannis	Calculated
14	Lead-210, supported, error	210Pb sup e	±	Ruben, Manuel Jannis	Calculated
15	Lead-210 excess	210Pb xs	Bq/kg	Ruben, Manuel Jannis	Calculated
16	Lead-210 excess, error	210Pb xs e	±	Ruben, Manuel Jannis	Calculated
17	Age	Age	a AD/CE	Ruben, Manuel Jannis	Constant Flux - Constant Sedimentation (CFCS) dating model	Year
18	Age	Age	a	Ruben, Manuel Jannis	Constant Flux - Constant Sedimentation (CFCS) dating model
19	Age, error	Age e	±	Ruben, Manuel Jannis	Constant Flux - Constant Sedimentation (CFCS) dating model
20	Lead-210 excess	210Pb xs	Bq/kg	Ruben, Manuel Jannis	Constant Flux - Constant Sedimentation (CFCS) dating model	Fitted Activity
21	Age	Age	a AD/CE	Ruben, Manuel Jannis	Constant Initial Concentration (CIC) dating model	Year
22	Age	Age	a	Ruben, Manuel Jannis	Constant Initial Concentration (CIC) dating model
23	Age, error	Age e	±	Ruben, Manuel Jannis	Constant Initial Concentration (CIC) dating model

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)

Size:

503 data points

Data

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

1 Depth sed [m] (Midpoint Depth)	2 210Pb [Bq/kg] (High-purity Germanium (HPGe) ...)	3 210Pb e [±] (High-purity Germanium (HPGe) ...)	4 214Pb [Bq/kg] (High-purity Germanium (HPGe) ...)	5 214Pb e [±] (High-purity Germanium (HPGe) ...)	6 214Bi [Bq/kg] (High-purity Germanium (HPGe) ...)	7 214Bi e [±] (High-purity Germanium (HPGe) ...)	8 137Cs [Bq/kg] (High-purity Germanium (HPGe) ...)	9 137Cs e [±] (High-purity Germanium (HPGe) ...)	10 241Am [Bq/kg] (High-purity Germanium (HPGe) ...)	11 228Ac [Bq/kg] (High-purity Germanium (HPGe) ...)	12 228Ac e [±] (High-purity Germanium (HPGe) ...)	13 210Pb sup [Bq/kg] (Calculated)	14 210Pb sup e [±] (Calculated)	15 210Pb xs [Bq/kg] (Calculated)	16 210Pb xs e [±] (Calculated)	17 Age [a AD/CE] (Year, Constant Flux - Constan...)	18 Age [a] (Constant Flux - Constant Sedi...)	19 Age e [±] (Constant Flux - Constant Sedi...)	20 210Pb xs [Bq/kg] (Fitted Activity, Constant Flu...)	21 Age [a AD/CE] (Year, Constant Initial Concen...)	22 Age [a] (Constant Initial Concentratio...)	23 Age e [±] (Constant Initial Concentratio...)
0.015	62.7	7.4	40.8	1.4	39.9	2.7	#0	0.5	#0	44.9	4.1	40.5	1.3	22.2	7.5	2019.0	3.5	0.6	25.2	2022.5	0.0	15.4
0.025	63.9	6.5	40.8	1.2	37.3	2.1	#0	0.4	#0	42.1	3.3	39.5	1.1	24.3	6.6	2016.7	5.8	0.9	23.5	2025.5	-3.0	13.9
0.035	57.1	5.4	36.8	1.0	37.2	1.8	1.6	0.3	#0	41.6	2.8	37.0	0.9	20.1	5.5	2014.3	8.2	1.3	21.8	2019.4	3.2	13.9
0.045	54.9	6.2	38.3	1.2	35.0	2.2	1.2	0.4	#0	44.3	3.6	37.1	1.1	17.8	6.3	2012.0	10.5	1.7	20.3	2015.4	7.1	15.7
0.055	53.2	4.5	37.0	0.8	35.6	1.5	1.5	0.2	#0	42.9	2.4	36.5	0.7	16.8	4.6	2009.6	12.9	2.0	18.9	2013.5	9.0	14.0
0.065	54.4	5.8	38.1	1.1	36.4	2.0	1.4	0.4	#0	41.3	3.2	37.5	1.0	16.8	5.9	2007.3	15.2	2.4	17.5	2013.6	8.9	15.6
0.075	53.1	4.9	39.9	1.0	36.1	1.6	1.2	0.3	#0	47.8	2.9	38.5	0.9	14.6	5.0	2005.0	17.5	2.8	16.3	2009.1	13.4	15.4
0.085	54.4	5.4	32.9	0.9	33.7	1.8	1.2	0.3	#0	40.4	2.9	33.2	0.9	21.2	5.4	2002.6	19.9	3.1	15.2	2021.0	1.5	13.6
0.095	65.1	6.2	43.9	1.1	39.8	2.0	1.9	0.4	#0	52.0	3.4	42.4	1.0	22.7	6.3	2000.3	22.2	3.5	14.1	2023.2	-0.7	14.1
0.105	59.3	5.8	39.1	1.1	40.5	2.0	1.4	0.3	#0	46.6	3.2	39.6	1.0	19.7	5.9	1998.0	24.6	3.9	13.1	2018.7	3.9	14.6
0.115	53.1	5.7	39.7	1.1	34.9	1.9	1.5	0.4	#0	51.9	3.5	38.0	1.0	15.2	5.7	1995.6	26.9	4.2	12.2	2010.3	12.2	16.3
0.125	43.2	5.1	33.2	1.0	31.3	1.9	1.6	0.4	#0	39.0	3.1	32.5	0.9	10.7	5.2	1993.3	29.2	4.6	11.3	1999.0	23.5	19.1
0.135	50.1	5.7	39.0	1.2	37.2	2.1	1.3	0.4	#0	45.2	3.5	38.4	1.1	11.7	5.8	1989.8	32.7	5.2	10.2	2001.9	20.6	19.3
0.155	46.9	4.5	39.0	0.9	36.3	1.6	2.3	0.3	#0	51.1	3.0	38.0	0.8	8.9	4.5	1986.3	36.2	5.7	9.1	1993.3	29.2	19.6
0.165	39.8	4.4	35.9	1.0	35.1	1.8	2.2	0.3	#0	48.7	3.2	35.6	0.9	4.2	4.5	1983.9	38.6	6.1	8.5	1968.8	53.7	36.0
0.175	52.4	5.6	44.3	1.2	36.6	1.9	2.3	0.4	#0	54.6	3.6	41.4	1.0	11.1	5.6	1981.6	40.9	6.5	7.9	2000.2	22.3	19.7
0.185	36.8	4.4	32.2	1.0	34.7	1.9	1.6	0.4	#0	40.3	3.0	33.1	0.9	3.7	4.5	1979.3	43.3	6.8	7.3	1965.2	57.3	39.9
0.195	39.6	4.1	35.4	0.9	33.1	1.6	2.2	0.3	#0	46.0	2.8	34.6	0.8	5.0	4.2	1976.9	45.6	7.2	6.8	1974.9	47.6	29.0
0.205	41.3	4.8	35.9	1.0	34.0	1.9	2.2	0.4	#0	50.7	3.4	35.3	0.9	6.1	4.9	1974.6	47.9	7.6	6.3	1980.8	41.7	28.3
0.215	42.0	5.0	40.1	1.1	38.3	2.0	2.9	0.4	#0	52.0	3.5	39.4	1.0	2.6	5.1	1972.2	50.3	7.9	5.9	1953.7	68.8	63.4
0.225	35.4	3.7	32.1	0.8	32.2	1.5	2	0.3	#0	43.8	2.7	32.2	0.8	3.3	3.8	1969.9	52.6	8.3	5.5	1960.9	61.6	39.0
0.235	36.4	4.3	37.4	1.0	34.8	1.8	2.1	0.3	#0	50.2	3.2	36.4	0.9	0.0	4.4	1967.6	55.0	8.7	5.1	1795.0	227.5	7546.1
0.245	34.9	4.3	31.1	0.9	33.9	1.8	2.8	0.4	#0	43.3	3.0	32.1	0.9	2.8	4.4	1965.2	57.3	9.0	4.7