Citation:

Knies_print.pdf

Name: Geochemistry of surface sediment samples from the western Barents Sea region
Published: 2009
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Here, we present bulk organic geochemical data from a spatial grid of surface samples from the western Barents Sea region. The results show that the distribution of organic carbon in surface sediments is predominantly controlled by input from land-derived terrigenous and in-situ produced marine organic matter. Inferred from various nitrogenous fractions and stable isotopes of bulk organic carbon we show that the spatial distribution of terrigenous organic carbon is independent of water depth, organic carbon mineralization and variable sedimentation rates. Instead, the pattern is predominantly controlled by sea ice-induced lateral transport and subsequent release in the Marginal Ice Zone (MIZ) as well as the distance to shore. Consistent with the observation of high vertical flux of particulate organic material in the MIZ, are amounts of marine organic carbon significantly enhanced in sediments below the winter ice margin. This is in accordance with modern observations suggesting that Arctic shelves with seasonal ice zones can be hot spots of vertical carbon export and thus a potential CO2 sink.

Coverage:

Median Latitude: 76.239790 * Median Longitude: 16.521416 * South-bound Latitude: 70.550000 * West-bound Longitude: -4.331667 * North-bound Latitude: 82.310167 * East-bound Longitude: 34.671833

Date/Time Start: 1997-06-28T13:12:00 * Date/Time End: 1997-08-02T14:44:00

Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m

Event(s):

HM_St01 * Latitude: 72.000000 * Longitude: 22.000000 * Elevation: -367.0 m * Location: Norwegian Sea * Comment: RV Hakon Mosby

HM_St02 * Latitude: 72.020000 * Longitude: 20.920000 * Elevation: -371.0 m * Location: Norwegian Sea * Comment: RV Hakon Mosby

HM_St03 * Latitude: 72.030000 * Longitude: 19.850000 * Elevation: -324.0 m * Location: Norwegian Sea * Comment: RV Hakon Mosby

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	Sample ID	Sample ID		Knies, Jochen
6	DEPTH, sediment/rock	Depth sed	m			Geocode
7	Carbon, organic, total	TOC	%	Knies, Jochen	Element analyser CHN, LECO CS 244	wt. %
8	Nitrogen, total	TN	%	Knies, Jochen	Element analyser, Carlo Erba NC2500	wt. %
9	Nitrogen, inorganic	N inorg	%	Knies, Jochen	Element analyser, Carlo Erba NC2500	of total N
10	Nitrogen, organic	N org	%	Knies, Jochen	Calculated	wt. %
11	Carbon/Nitrogen ratio	C/N		Knies, Jochen	Calculated
12	Nitrogen, organic/Carbon, organic ratio	N org/TOC		Knies, Jochen	Calculated
13	Nitrogen, inorganic	N inorg	%	Knies, Jochen	Calculated	wt. %
14	Nitrogen, organic	N org	%	Knies, Jochen	Calculated	of total N
15	δ13C, organic carbon	δ13C Corg	‰ PDB	Knies, Jochen	Element analyser isotope ratio mass spectrometer (EA-IRMS)

License:

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

Size:

1150 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 Sample ID	7 TOC [%] (wt. %, Element analyser CHN, ...)	8 TN [%] (wt. %, Element analyser, Carl...)	9 N inorg [%] (of total N, Element analyser,...)	10 N org [%] (wt. %, Calculated)	11 C/N (Calculated)	12 N org/TOC (Calculated)	13 N inorg [%] (wt. %, Calculated)	14 N org [%] (of total N, Calculated)	15 δ13C Corg [‰ PDB] (Element analyser isotope rati...)
HM_St01	72.00	22.00	-367	1	0.82	0.12	0.02	0.10	8.46	0.12	19.21	80.79	-21.65
HM_St02	72.02	20.92	-371	2	0.92	0.14	0.03	0.11	8.37	0.12	19.33	80.67	-22.01
HM_St03	72.03	19.85	-324	3	1.01	0.15	0.03	0.13	8.05	0.12	17.24	82.76	-21.75
HM_St04	72.02	18.77	-315	4	0.97	0.15	0.02	0.13	7.52	0.13	15.35	84.65	-21.66
HM_St06	72.02	16.62	-362	5	0.37	0.06	0.01	0.05	8.09	0.12	21.01	78.99	-21.87
HM_St07	72.02	15.52	-767	6	0.29	0.03	0.01	0.02	14.20	0.07	38.46	61.54	-23.61
HM_St09	72.01	14.62	-1317	7	0.67	0.10	0.01	0.09	7.81	0.13	12.28	87.72	-21.45
HM_St11	73.17	12.94	-1499	8	0.74	0.11	0.01	0.09	7.84	0.13	13.48	86.52	-21.72
HM_St12	73.17	14.09	-1030	9	0.42	0.06	0.01	0.05	8.25	0.12	18.16	81.84	-21.99
HM_St13	73.17	15.23	-485	10	0.33	0.05	0.01	0.04	8.96	0.11	26.58	73.42	-22.60
HM_St14	73.17	16.38	-475	11	0.79	0.11	0.02	0.08	9.46	0.11	20.92	79.08	-22.33
HM_St15	73.17	17.54	-460	12	0.88	0.12	0.02	0.09	9.31	0.11	19.66	80.34	-22.40
HM_St16	73.17	18.82	-423	13	0.87	0.12	0.02	0.09	9.44	0.11	20.85	79.15	-22.53
HM_St17	73.17	19.86	-441	14	1.15	0.14	0.03	0.12	9.77	0.10	18.06	81.94	-22.86
HM_St18	73.17	20.95	-463	15	1.41	0.18	0.03	0.15	9.49	0.11	18.79	81.21	-22.57
HM_St19	73.17	22.01	-444	16	1.40	0.19	0.03	0.15	9.07	0.11	17.87	82.13	-22.43
HM_St20	74.82	18.02	-296	17	1.97	0.25	0.04	0.21	9.16	0.11	14.81	85.19	-22.36
HM_St21	74.82	17.00	-280	18	0.90	0.10	0.02	0.08	11.23	0.09	22.81	77.19	-22.62
HM_St22	74.82	16.03	-356	19	0.73	0.07	0.02	0.05	15.51	0.06	33.92	66.08	-23.42
HM_St23	74.82	14.79	-1507	20	0.95	0.14	0.02	0.12	8.05	0.12	15.78	84.22	-22.19
HM_St24	75.64	12.92	-1500	21	1.11	0.16	0.02	0.13	8.28	0.12	15.22	84.78	-22.47
HM_St25	75.75	13.84	-807	22	0.82	0.08	0.03	0.05	15.83	0.06	37.74	62.26	-23.47
HM_St26	75.83	14.77	-370	23	1.66	0.18	0.05	0.13	13.27	0.08	30.47	69.53	-23.03
HM_St27	75.95	15.72	-369	24	2.17	0.25	0.07	0.19	11.68	0.09	26.18	73.82	-22.68
HM_St28	76.05	16.67	-328	25	1.69	0.19	0.05	0.14	12.14	0.08	27.34	72.66	-22.64
HM_St29	76.16	17.62	-309	26	2.31	0.27	0.07	0.20	11.58	0.09	26.21	73.79	-22.85
HM_St30	76.22	18.58	-257	27	2.24	0.26	0.07	0.19	11.81	0.08	26.84	73.16	-22.59
HM_St31	76.31	19.57	-258	28	2.66	0.31	0.08	0.23	11.65	0.09	26.25	73.75	-22.74
HM_St32	76.38	20.58	-228	29	2.40	0.28	0.07	0.21	11.21	0.09	23.59	76.41	-22.78
HM_St33	76.47	21.60	-262	30	2.62	0.30	0.08	0.22	11.80	0.08	25.39	74.61	-22.65
HM_St34	71.75	22.00	-356	31	0.76	0.11	0.02	0.09	8.53	0.12	20.46	79.54	-21.84
HM_St35	71.62	21.07	-319	32	0.60	0.09	0.02	0.07	8.41	0.12	19.45	80.55	-21.82
HM_St36	71.60	20.86	-320	33	0.80	0.12	0.02	0.10	7.86	0.13	17.04	82.96	-21.41
HM_St37	71.60	21.19	-335	34	0.58	0.09	0.02	0.07	7.82	0.13	19.66	80.34	-21.79
HM_St39	71.34	20.19	-234	35	0.75	0.13	0.02	0.11	6.82	0.15	15.39	84.61	-21.24
HM_St40	71.18	19.56	-225	36	0.83	0.13	0.02	0.11	7.93	0.13	16.77	83.23	-21.15
HM_St41	71.03	18.95	-199	37	0.37	0.05	0.01	0.05	7.99	0.13	14.04	85.96	-21.42
HM_St42	70.87	18.34	-173	38	0.43	0.06	0.01	0.05	8.47	0.12	17.72	82.28	-21.97
HM_St44	70.55	17.14	-706	39	0.20	0.03	0.01	0.02	10.78	0.09	24.60	75.40	-21.27
HM_St627	72.32	24.06	-264	40	0.62	0.09	0.02	0.07	8.78	0.11	21.11	78.89	-22.30
HM_St629	73.01	24.25	-404	41	1.39	0.18	0.04	0.14	9.67	0.10	20.00	80.00	-22.87
HM_St633	74.34	24.69	-373	42	1.26	0.13	0.05	0.08	15.20	0.07	36.15	63.85	-23.51
HM_St635	75.00	24.94	-182	43	2.45	0.30	0.06	0.24	10.24	0.10	20.33	79.67	-22.86
HM_St639	75.57	27.90	-263	44	2.74	0.34	0.06	0.28	9.72	0.10	17.06	82.94	-22.57
HM_St643	76.49	29.91	-291	45	2.24	0.27	0.05	0.22	10.10	0.10	17.78	82.22	-22.77
HM_St645	75.86	29.46	-296	46	2.20	0.21	0.06	0.15	14.37	0.07	27.14	72.86	-24.43
HM_St651	74.64	26.08	-317	47	2.08	0.26	0.05	0.21	10.02	0.10	20.00	80.00	-22.66
HM_St653	73.97	25.81	-441	48	1.73	0.22	0.05	0.18	9.88	0.10	20.45	79.55	-22.72
HM_St655	73.31	25.54	-412	49	1.53	0.20	0.04	0.16	9.62	0.10	20.50	79.50	-22.78
HM_St661	71.37	22.76	-408	50	0.71	0.11	0.02	0.09	8.25	0.12	21.82	78.18	-22.14
HM_St665	72.17	28.41	-289	51	0.78	0.11	0.02	0.09	8.95	0.11	20.91	79.09	-22.47
HM_St669	73.50	29.15	-414	52	1.37	0.18	0.04	0.14	9.70	0.10	21.67	78.33	-22.50
HM_St673	74.67	32.49	-165	53	1.28	0.13	0.05	0.09	15.00	0.07	34.62	65.38	-23.21
HM_St677	75.97	33.73	-276	54	1.91	0.18	0.06	0.12	15.69	0.06	32.22	67.78	-23.71
HM_St679	76.62	34.45	-193	55	1.82	0.23	0.05	0.18	10.15	0.10	22.17	77.83	-23.52
HM_St690	71.02	30.96	-283	56	0.39	0.05	0.03	0.03	15.63	0.06	50.00	50.00	-23.84
HM_St1239	74.46	20.83	-178	57	1.70	0.20	0.04	0.16	10.35	0.10	18.75	81.25	-22.71
HM_St1240	74.81	19.18	-94	58	0.53	0.07	0.02	0.05	10.79	0.09	25.32	74.68	-22.56
HM_St1241	74.82	17.58	-297	59	2.14	0.29	0.05	0.25	8.71	0.11	15.85	84.15	-22.34
HM_St1242	75.50	13.33	-1297	60	1.07	0.16	0.03	0.14	7.95	0.13	17.21	82.79	-22.22
HM_St1243	76.00	16.59	-333	61	1.82	0.23	0.05	0.18	10.25	0.10	22.52	77.48	-22.81
HM_St1244	77.95	19.17	-96	62	2.17	0.24	0.10	0.14	15.39	0.06	41.89	58.11	-25.17
HM_St1245	77.50	19.13	-180	63	2.37	0.27	0.10	0.17	13.82	0.07	36.71	63.29	-24.22
HM_St1246	76.94	19.44	-153	64	2.07	0.23	0.09	0.14	14.64	0.07	37.95	62.05	-23.78
HM_St1249	76.95	15.25	-156	65	1.91	0.23	0.08	0.14	13.25	0.08	36.45	63.55	-23.63
HM_St1250	76.98	15.76	-228	66	1.65	0.18	0.08	0.10	16.59	0.06	44.49	55.51	-23.88
HM_St1251	77.75	14.92	-115	67	1.84	0.17	0.09	0.08	22.27	0.04	51.87	48.13	-24.57
HM_St1254	77.83	16.59	-76	68	2.03	0.14	0.10	0.04	49.01	0.02	69.80	30.20	-24.84
HM_St1255	77.72	15.19	-83	69	1.74	0.15	0.09	0.07	25.66	0.04	56.12	43.88	-24.77
HM_St1258	77.83	15.69	-43	70	1.72	0.13	0.09	0.05	34.50	0.03	63.09	36.91	-25.07
HM_St1260	77.63	14.21	-162	71	1.77	0.23	0.08	0.16	11.39	0.09	33.44	66.56	-23.20
HM_St1261	77.39	10.60	-1291	72	0.89	0.12	0.04	0.08	11.28	0.09	32.79	67.21	-23.40
HM_St1262	77.36	11.27	-603	73	0.82	0.09	0.04	0.05	16.10	0.06	41.49	58.51	-24.39
HM_St1263	77.20	12.93	-196	74	1.96	0.24	0.08	0.16	12.30	0.08	33.30	66.70	-23.45
HM_St1264	77.54	12.60	-103	75	1.53	0.19	0.06	0.13	11.50	0.09	30.47	69.53	-23.19
HM_St1265	78.37	16.37	-87	76	1.88	0.17	0.08	0.09	21.41	0.05	46.88	53.12	-25.24
HM_St1266	78.36	15.26	-256	77	2.24	0.28	0.08	0.20	11.33	0.09	29.44	70.56	-23.71
HM_St1267	78.15	13.83	-416	78	2.68	0.37	0.08	0.29	9.33	0.11	21.70	78.30	-22.90
HM_St1269	78.37	12.30	-169	79	2.00	0.25	0.09	0.16	12.42	0.08	35.30	64.70	-23.80
HM_St1270	78.08	12.30	-259	80	2.41	0.31	0.09	0.22	10.79	0.09	28.85	71.15	-22.84
HM_St1272	78.25	8.82	-1400	81	1.20	0.15	0.05	0.11	10.93	0.09	29.20	70.80	-22.88
HM_St1273	78.25	9.32	-600	82	0.85	0.08	0.04	0.04	20.77	0.05	49.35	50.65	-24.02
HM_St1274	78.25	9.39	-430	83	0.89	0.10	0.05	0.05	17.43	0.06	47.02	52.98	-24.24
HM_St1275	78.25	10.21	-297	84	2.21	0.26	0.08	0.19	11.72	0.09	28.59	71.41	-23.02
HM_St1276	78.57	10.34	-131	85	2.14	0.31	0.05	0.25	8.49	0.12	17.79	82.21	-22.39
HM_St1277	78.58	9.44	-404	86	1.44	0.18	0.05	0.13	11.27	0.09	28.47	71.53	-22.99
HM_St1278	78.58	9.03	-601	87	1.13	0.13	0.04	0.09	12.69	0.08	32.64	67.36	-23.12
HM_St1279	78.61	7.82	-1203	88	1.36	0.18	0.05	0.13	10.51	0.10	26.68	73.32	-22.91
HM_St1280	78.61	8.70	-787	89	1.31	0.16	0.05	0.11	11.95	0.08	32.00	68.00	-23.08
HM_St1281	78.72	9.83	-106	90	1.29	0.17	0.04	0.13	9.64	0.10	22.79	77.21	-22.36
HM_St1282	78.95	6.82	-1400	91	1.18	0.16	0.05	0.12	10.24	0.10	28.36	71.64	-22.85
HM_St1283	78.95	8.31	-812	92	1.22	0.16	0.04	0.12	10.18	0.10	23.70	76.30	-22.90
HM_St1285	78.82	9.62	-91	93	1.96	0.22	0.06	0.16	12.01	0.08	26.98	73.02	-22.69
HM_St1286	78.87	11.33	-159	94	1.13	0.16	0.04	0.12	9.28	0.11	26.25	73.75	-21.93
HM_St1287	79.17	11.77	-364	95	0.97	0.13	0.03	0.11	9.16	0.11	20.21	79.79	-21.92
HM_St1288	78.98	11.82	-308	96	1.38	0.19	0.04	0.15	9.36	0.11	22.80	77.20	-22.26
HM_St1289	79.03	10.84	-319	97	2.23	0.29	0.07	0.22	10.05	0.10	23.28	76.72	-22.42
HM_St1290	78.95	9.62	-250	98	0.95	0.13	0.03	0.10	9.78	0.10	22.37	77.63	-22.41
HM_St1292	79.06	9.33	-80	99	1.51	0.21	0.04	0.17	8.82	0.11	17.75	82.25	-22.03
PS2824-6	77.57	34.67	-212	100	1.80	0.22	0.04	0.18	10.11	0.10	19.82	80.18	-24.20
PS2827-5	79.44	30.47	-335	101	1.60	0.21	0.04	0.17	9.36	0.11	19.34	80.66	-23.80
PS2831-9	81.09	16.98	-917	102	0.69	0.09	0.02	0.07	10.00	0.10	24.18	75.82	-23.30
PS2832-13	81.11	16.20	-2070	103	0.78	0.11	0.03	0.08	9.29	0.11	25.00	75.00	-23.30
PS2834-7	80.92	9.82	-1029	104	1.26	0.15	0.04	0.11	11.45	0.09	28.10	71.90	-23.30
PS2835-1	81.06	7.29	-891	105	1.13	0.14	0.04	0.10	11.77	0.08	28.89	71.11	-23.50
PS2837-8	81.23	2.48	-992	106	1.90	0.21	0.05	0.16	12.03	0.08	24.40	75.60	-23.20
PS2839-7	81.40	-0.92	-2905	107	1.37	0.15	0.05	0.11	12.92	0.08	29.80	70.20	-23.50
PS2847-4	81.85	-4.33	-4268	108	0.92	0.11	0.04	0.07	12.60	0.08	33.64	66.36	-23.60
PS2853-11	82.31	3.71	-2061	109	0.90	0.10	0.02	0.07	12.50	0.08	25.00	75.00	-23.50
PS2855-9	82.05	5.29	-1455	110	1.54	0.17	0.05	0.13	11.94	0.08	25.86	74.14	-23.00
PS2856-9	81.99	5.76	-929	111	1.45	0.16	0.05	0.11	13.06	0.08	30.63	69.38	-24.10
PS2857-12	81.90	7.96	-824	112	1.21	0.15	0.04	0.11	11.20	0.09	28.00	72.00	-23.50
PS2860-8	81.58	11.93	-1993	113	1.50	0.16	0.04	0.12	12.93	0.08	27.50	72.50	-22.90
PS2862-7	80.58	11.76	-1035	114	1.44	0.20	0.05	0.15	9.41	0.11	23.12	76.88	-23.10
PS2865-2	80.50	10.49	-822	115	1.74	0.19	0.06	0.13	13.28	0.08	32.12	67.88	-24.20