Table 1. Sampling data of each core and the main parameters derived from radionuclide analysis of all sediment cores (MAR: Mass Accumulation Rate; SAR: Sediment Accumulation Rate).

Station	Sampling date	Location	Depth (m)	Supported 210Pb horizon (cm)	Surface excess 210Pb	Inventory	Accumulation Rates
					(Bq·kg−1)	(Bq·m−2)	Layers (cm)	MAR (g·cm−2·y−1)	SAR (cm·y−1)
Morràs 1	13/10/2013	Canyon flank	717	25	180 ± 20	19 600 ± 600	10–25	0.150 ± 0.011	0.207 ± 0.016
Morràs 2	13/10/2013	Canyon flank	727	10	55 ± 10	900 ± 100	—	—	—
Morràs 3	13/10/2015	Canyon axis	796	23	410 ± 20	21 800 ± 500	0–11	0.184 ± 0.009	0.322 ± 0.016
							10–22	0.090 ± 0.005	0.128 ± 0.007
Morràs 4	13/10/2013	Canyon axis	987	26	350 ± 20	20 100 ± 500	3–25	0.129 ± 0.005	0.200 ± 0.007
Besòs 1	15/09/2014	Canyon axis	810	>55	230 ± 10	>54 000	4–25	0.63 ± 0.06	0.98 ± 0.08
							28–41	0.61 ± 0.04	0.92 ± 0.06
							40–54	0.28 ± 0.03	0.39 ± 0.04
Besòs 2	28/07/2012	Canyon axis	1238	28	430 ± 20	19 200 ± 200	0–12	0.110 ± 0.002	0.205 ± 0.005
							15–28	0.118 ± 0.006	0.180 ± 0.009
Besòs 3	29/07/2012	Canyon axis	1487	16	470 ± 20	14 000 ± 200	4–16	0.057 ± 0.002	0.078 ± 0.003
Arenys 1	28/07/2012	Canyon axis	1074	20	390 ± 20	20 500 ± 400	2–14	0.176 ± 0.009	0.297 ± 0.015
							13–20	0.061 ± 0.004	0.078 ± 0.005
Arenys 2	29/07/2012	Canyon axis	1410	16	600 ± 30	11 900 ± 200	0–16	0.066 ± 0.004	0.093 ± 0.006
Arenys 3	29/07/2012	Canyon axis	1632	15	630 ± 30	11 100 ± 300	0–14	0.061 ± 0.002	0.091 ± 0.003