. Author manuscript; available in PMC: 2018 Jan 5.

Published in final edited form as: Nature. 2017 Jul 5;547(7661):43–48. doi: 10.1038/nature22995

Extended Data Table 1. Locations, conventional and calibrated AMS ¹⁴C dates on calcareous microfossils from the investigated sediment cores.

Coring devices: GBC: giant box core, GC: gravity core. Sample depths are given in centimetres below seafloor (cmbsf; top of CC: sample was taken from top of core catcher, corresponding to 652 cmbsf). All ¹⁴C-dates were corrected using an offset (ΔR) of 700±200 years from the global marine reservoir effect (R) of 400 years. The corrected ¹⁴C-dates were calibrated with the CALIB Radiocarbon Calibration Program version 7.1html⁵⁴ (http://calib.qub.ac.uk/calib/) using the MARINE13 calibration dataset⁵⁵. Uncorrected dates (= ¹⁴C age) are given in ¹⁴C years before present (BP) with their errors given as 1 s.d. range. Calibrated dates are given as maximum and minimum ages (2 s.d. range) as well as median and mean ages in calibrated years BP. Dated calcareous microfossils: bF: benthic foraminifera, Bp: brachiopods, Bz: bryozoans, E: echinoid spines, F: mixed benthic and planktonic foraminifera, O: ostracods, P: pteropods, pF: planktonic foraminifera, S: unspecified calcareous shell fragments.

Station and core ID	Latitude (°S)	Longitude (°W)	Water depth (m)	Recovery (m)	Sample depth (cmbsf)	Laboratory code	Dated material	¹⁴C age ±1 s.d. (yr BP)	Max. age (yr BP)	Min. age (yr BP)	Med. age (yr BP)	Mean age (yr BP)
PS2544-1 GBC	71.796	105.191	546	0.21	surface	N/A	N/A	N/A	N/A	N/A	N/A	N/A
PS69/251-1 GBC	72.069	104.483	573	0.38	surface	SUERC-18942	pF	1144±37	N/A	N/A	[0]	[0]
PS75/215-1 GBC	74.592	104.042	556	0.62	surface	Beta-315966	Bz	1190±30	N/A	N/A	[0]	[0]
PS75/1 60-1 GC	74.564	102.624	337	6.68	0.5	Beta-284601	bF, S, O	2340±40	1615	756	1190	1186
					133.5	Beta-284602	S	2750±40	2118	1212	1634	1665
					230	Beta-284604	bF, S, O	4990±40	4919	3840	4405	4380
					300	Beta-284681	bF, S	7180±40	7400	6514	6967	6957
					380	Beta-284606	bF, S	8410±40	8592	7735	8137	8164
					490+500	Beta-284607	bF, P, S, O	9320±40	9729	8650	9243	9190
					588+600	Beta-284608	bF, S, O, Bp	8560±40	8861	7913	8331	8387
					652	Beta-284610	S	8200±40	8358	7578	7966	7968
					top of CC	Beta-284600	Bp, S, bF	8240±40	8390	7603	8006	7997
PS75/1 67-1 GC	74.623	105.802	526	9.34	230	Beta-300838	F	8490±40	8734	7820	8254	8277
					250	Beta-300839	F, S	8740±40	9040	8065	8547	8553
					280	Beta-284682	F	9080±50	9432	8451	8949	8942
					401	Beta-284683	F, S, O	9210±50	9541	8550	9113	9046
					478	Beta-300837	F, O, E	9180±40	9516	8547	9077	9032
					598	Beta-300840	F	9490±40	10070	8979	9459	9525
					625.5	Beta-284684	F	9660±50	10206	9193	9690	9700
					649	Beta-300841	F	9280±40	9656	8616	9196	9136
					670	Beta-284685	F	9450±50	10029	8899	9405	9464
					746	Beta-284686	F, S	9690±50	10228	9231	9726	9730
					830	Beta-300842	F	9620±50	10169	9133	9640	9651
					900.5	Beta-284687	F, S	10210±60	10934	9778	10372	10356

Extended Data Table 1. Locations, conventional and calibrated AMS 14C dates on calcareous microfossils from the investigated sediment cores.

Extended Data Table 1. Locations, conventional and calibrated AMS ¹⁴C dates on calcareous microfossils from the investigated sediment cores.