/* DATA DESCRIPTION:
Citation:	Allen, Claire Susannah; Peck, Victoria L (2026): Pb210 dates of marine sediment core BC523 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.991429
Abstract:	The box core (BC) 523 was collected in 2008 from an inner shelf basin of Marguerite Bay, Antarctic Peninsula (67° 51.33' S; 68° 12.282' W) during research cruise JR179 aboard the RRS James Clark Ross. The chronology was established using the Constant Rate of Supply model of Pb210 measurements on the top 23 cm of sediment core.
	This research was supported by core funding from the Natural Environment Research Council to the British Antarctic Survey's Palaeo Environment, Ice Sheets and Climate Change Program.
Keyword(s):	20th Century; age-depth model; Antarctic Peninsula; chronology; marine sediments
Related to:	Belt, Simon T; Smik, Lukas; Köseoğlu, Denizcan; Allen, Claire Susannah; Husum, Katrine; Knies, Jochen (2026): Diatom lipids open window to past ocean temperatures in the polar regions. Communications Earth & Environment, 7(1), 154, https://doi.org/10.1038/s43247-025-03177-1
	Peck, Victoria L; Allen, Claire Susannah; Kender, Sev; McClymont, Erin L; Hodgson, Dominic A (2015): Oceanographic variability on the West Antarctic Peninsula during the Holocene and the influence of upper circumpolar deep water. Quaternary Science Reviews, 119, 54-65, https://doi.org/10.1016/j.quascirev.2015.04.002
Other version:	Belt, Simon T (2026): EZ25 SST data_Belt et al_CEE [dataset]. figshare, https://doi.org/10.6084/M9.FIGSHARE.30630980
Coverage:	LATITUDE: -67.855500 * LONGITUDE: -68.204670
	DATE/TIME START: 2008-04-03T00:00:00 * DATE/TIME END: 2008-04-03T00:00:00
	MINIMUM DEPTH, sediment/rock: 0.005 m * MAXIMUM DEPTH, sediment/rock: 0.225 m
Event(s):	JR179_BC523 (BC523 CORE_NO 523) * LATITUDE: -67.855500 * LONGITUDE: -68.204670 * DATE/TIME: 2008-04-03T00:00:00 * ELEVATION: -911.0 m * RECOVERY: 0.29 m * LOCATION: Marguerite Bay, Adelaide Trough, Holocene site (6) (same location as site TPC522) * CAMPAIGN: JR20080221 (JR179) (URI: https://www.bodc.ac.uk/resources/inventories/cruise_inventory/report/8277/) * BASIS: James Clark Ross (URI: https://en.wikipedia.org/wiki/RRS_James_Clark_Ross) * METHOD/DEVICE: Box corer (BC) (URI: http://en.wikipedia.org/wiki/Box_corer) * COMMENT: 2 samples (0-1 cmbsf), 3 subcores (X: 0-29 cmbsf, Y: 0-27 cmbsf, Z: 0-26.5 cmbsf)
Parameter(s):	DEPTH, sediment/rock [m] (Depth sed) * GEOCODE * PI: Allen, Claire Susannah (https://orcid.org/0000-0002-0938-0551, csall@bas.ac.uk) * COMMENT: Mid depth
	Lead-210 excess [Bq/kg] (210Pb xs) * PI: Allen, Claire Susannah (https://orcid.org/0000-0002-0938-0551, csall@bas.ac.uk) * METHOD/DEVICE: High-purity Germanium (HPGe) detector
	Lead-210 excess, error [±] (210Pb xs e) * PI: Allen, Claire Susannah (https://orcid.org/0000-0002-0938-0551, csall@bas.ac.uk) * METHOD/DEVICE: High-purity Germanium (HPGe) detector * COMMENT: 1σ
	Age [a AD/CE] (Age) * PI: Allen, Claire Susannah (https://orcid.org/0000-0002-0938-0551, csall@bas.ac.uk) * METHOD/DEVICE: CRS model (Constant Rate of Supply)
	AGE [ka BP] (Age) * GEOCODE * PI: Allen, Claire Susannah (https://orcid.org/0000-0002-0938-0551, csall@bas.ac.uk)
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Size:	39 data points
*/
Depth sed [m]	210Pb xs [Bq/kg]	210Pb xs e [±]	Age [a AD/CE]	Age [ka BP]
0.005	430	5	2008	-0.058
0.015	365	7	2001	-0.051
0.025	435	4	1994	-0.044
0.045	454	7	1978	-0.028
0.065	271	6	1960	-0.010
0.085	84	5	1941	0.009
0.105	49	6	1921	0.029
0.125	40	3	1899	0.051
0.145	16	5	1875	0.075
0.165	8	4	1850	0.100
0.185	3	5	1823	0.127
0.205	2	3	1794	0.156
0.225	1	4	1764	0.186