Citation:

PANGAEA.980076

Name: n-alkane, fatty acid, and lignin phenol-based indices from sediment core PS51/154-11
Published: 2025-04-02
License: https://creativecommons.org/licenses/by/4.0/
Keywords: 13C; 14C; Arctic Ocean; Biomarker; Fatty acid; Laptev Sea; Lignin phenols; MAR; Marine sediment; Marine Sediment Core; Mass accumulation rate; n-alkane; Radiocarbon dating

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Published: 2025-04-02 • DOI registered: 2025-05-01

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Abstract:

This dataset includes biomarker indices and data used to calculate the mass accumulation rate of high molecular weight fatty acids in core PS51/154-11, including 1) n-alkane-based indices: the Carbon Preference Index (CPI) and the Sphagnum proxy (C25/(C25+C29) ratio); 2) lignin phenol-based indices: the syringyl phenols to vanillyl phenols ratio (S/V), the cinnamyl phenols to vanillyl phenols ratio (C/V), and the vanillic acid to vanillin ratio (Vd/Vl); 3) data for calculating the mass accumulation rate of high molecular weight fatty acids (C24:0+C26:0+C28:0+C30:0, HMW fatty acid MAR), which includes sedimentation rate, dry bulk density, and high molecular weight fatty acid content. N-alkanes and fatty acids were extracted with a mixture of dichloromethane (DCM) + methanol (v/v = 9:1) and analyzed with an Agilent 7890A gas chromatograph equipped with a flame ionization detector (GC-FID) using an Agilent J&W DB-5MS column (60 m × 250 μm × 0.25 μm-thick film). Lignin phenols were obtained through the CuO oxidation process, extracted with ethyl acetate, and analyzed with an Agilent Technologies 7820A gas chromatograph coupled with a 5977B MSD mass selective detector (GC-MS) equipped with a 30m × 320 μm × 0.25 μm-thick film column (Trajan SGE PB-1).

Keyword(s):

13C; 14C; Arctic Ocean; Biomarker; Fatty acid; Laptev Sea; Lignin phenols; MAR; Marine sediment; Marine Sediment Core; Mass accumulation rate; n-alkane; Radiocarbon dating

Funding:

Helmholtz Association of German Research Centres (HGF), grant/award no. PIE-0018: German-Italian partnership project between AWI and CNR-ISP on Chronologies for Polar Paleoclimate Archives (PAIGE)

Coverage:

Latitude: 77.276000 * Longitude: 120.609833

Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00

Minimum DEPTH, sediment/rock: 0.105 m * Maximum DEPTH, sediment/rock: 6.505 m

Event(s):

PS51/154-11 * Latitude: 77.276000 * Longitude: 120.609833 * Date/Time Start: 1998-08-16T19:20:00 * Date/Time End: 1998-08-16T19:25:00 * Elevation: -270.0 m * Penetration: 7.8 m * Recovery: 6.74 m * Location: Laptev Sea * Campaign: (PS51 Transdrift-V) * Basis: * Method/Device: Kasten corer (KAL) * Comment: 7 core sections: 0.03-0.9, 0.9-1.91, 1.91-2.91, 2.91-3.91, 3.91-4.91, 4.91-5.91, 5.91-6.74 m

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Lin, Tsai-Wen		Geocode
2	AGE	Age	ka BP	Lin, Tsai-Wen		Geocode
3	Sedimentation rate	SR	cm/ka	Lin, Tsai-Wen
4	Density, dry bulk	DBD	g/cm³	Lin, Tsai-Wen
5	Fatty acids, high molecular weight, per unit sediment mass	HMW FA/sed	µg/g	Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; with flame ionization detection (FID); using an Agilent J&W DB-5MS column (60 m × 250 μm × 0.25 μm-thick film)
6	n-Alkanes, C25/(C25+C29) ratio	C25/(C25+C29)		Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; with flame ionization detection (FID); using an Agilent J&W DB-5MS column (60 m × 250 μm × 0.25 μm-thick film)	Sphagum proxy
7	Carbon Preference Index, n-Alkanes	CPI n-Alkanes		Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; with flame ionization detection (FID); using an Agilent J&W DB-5MS column (60 m × 250 μm × 0.25 μm-thick film)
8	Syringyl phenols/vanillyl phenols ratio	S/V		Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; coupled with a 5977B MSD mass selective detector (GC-MS); equipped with a 30 m × 320 μm × 0.25 μm-thick film column (Trajan SGE PB-1)
9	Cinnamyl phenols/vanillyl phenols ratio	C/V		Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; coupled with a 5977B MSD mass selective detector (GC-MS); equipped with a 30 m × 320 μm × 0.25 μm-thick film column (Trajan SGE PB-1)
10	Vanillic acid/vanillin ratio	(Ad/Al)v		Lin, Tsai-Wen	Gas chromatograph, Agilent, 7890A; coupled with a 5977B MSD mass selective detector (GC-MS); equipped with a 30 m × 320 μm × 0.25 μm-thick film column (Trajan SGE PB-1)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

520 data points

Data

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

1 Depth sed [m]	2 Age [ka BP]	3 SR [cm/ka]	4 DBD [g/cm³]	5 HMW FA/sed [µg/g]	6 C25/(C25+C29)	7 CPI n-Alkanes	8 S/V	9 C/V	10 (Ad/Al)v
0.105	2.965	43.90	1.35	4.85	0.355	5.46	0.70	0.49	1.07
0.195	3.170	43.90	1.19	5.44	0.340	5.37	0.71	0.47	0.91
0.315	4.249	6.87	1.04	11.47	0.352	5.65	0.72	0.43	0.76
0.405	5.947	3.31	0.84	19.04	0.363	5.49	0.73	0.52	0.83
0.505	10.073	4.60	0.88	21.17	0.360	5.59	0.76	0.51	0.79
0.595	10.303	370.00	0.83	19.28	0.358	5.58	0.76	0.47	0.70
0.685	10.327	358.00	0.73	23.62	0.378	5.55	0.75	0.46	0.70
0.805	10.368	247.00	1.00	19.89	0.365	5.59	0.77	0.52	0.73
0.965	10.455	162.00	0.81	17.84	0.356	5.70	0.77	0.49	0.71
1.035	10.499	162.00	0.89	40.50	0.368	5.64	0.78	0.50	0.66
1.120	10.551	94.60	0.76	29.55	0.382	5.58	0.77	0.55	0.71
1.235	10.868	29.50	1.15	21.15	0.406	5.32	0.77	0.49	0.72
1.335	11.149	126.00	0.90	21.41	0.364	5.62	0.77	0.50	0.70
1.425	11.183	288.00	0.96	27.71	0.407	5.39	0.78	0.54	0.74
1.540	11.220	307.00	1.04	20.71	0.358	5.64	0.80	0.52	0.65
1.635	11.251	308.00	1.10	20.32	0.349	5.83	0.79	0.55	0.70
1.725	11.280	308.00	0.98	23.03	0.352	5.83	0.79	0.54	0.65
1.845	11.319	309.00	0.94	18.68	0.342	5.78	0.79	0.53	0.68
1.945	11.352	308.00	1.12	21.31	0.354	5.83	0.79	0.61	0.76
2.020	11.376	283.00	0.95	17.55	0.344	5.93	0.78	0.61	0.72
2.145	11.425	243.00	1.00	25.05	0.336	6.07	0.79	0.57	0.70
2.235	11.460	141.00	1.08	22.16	0.340	6.05	0.82	0.49	0.61
2.325	11.551	99.20	0.90	29.33	0.351	5.94	0.77	0.57	0.69
2.380	11.607	99.20	0.95	27.14	0.332	6.09	0.79	0.60	0.71
2.470	11.697	105.00	0.94	25.31	0.334	6.06	0.80	0.59	0.72
2.620	11.833	112.00	0.98	26.47	0.325	6.25	0.80	0.52	0.62
2.740	11.941	110.00	1.07	21.79	0.312	6.40	0.80	0.54	0.67
2.830	12.023	110.00	0.98	20.89	0.332	6.11	0.79	0.52	0.66
2.890	12.077	110.00	1.05	16.94	0.318	6.30	0.78	0.55	0.69
3.025	12.259	43.40	1.27	18.23	0.310	6.07	0.78	0.51	0.68
3.120	12.571	30.50	1.27	11.39	0.292	5.75	0.71	0.44	1.01
3.240	12.964	30.50	1.20	44.95	0.290	6.62	0.75	0.50	0.65
3.325	13.243	36.70	1.29	19.19	0.316	6.33	0.79	0.53	0.70
3.420	13.488	91.30	1.28	27.87	0.305	6.33	0.78	0.45	0.64
3.475	13.517	177.00	1.25	20.58	0.310	6.47	0.77	0.47	0.66
3.630	13.598	191.00	1.29	20.03	0.317	6.22	0.75	0.49	0.69
3.770	13.670	212.00	1.30	17.92	0.329	6.14	0.76	0.58	0.72
3.925	13.738	240.00	1.20	17.30	0.318	6.23	0.76	0.53	0.70
4.005	13.769	253.00	1.20	14.23	0.317	6.19	0.76	0.48	0.71
4.105	13.809	254.00	1.13	19.08	0.310	6.32	0.78	0.48	0.65
4.205	13.848	121.00	1.19	16.13	0.316	6.16	0.74	0.54	0.81
4.305	13.975	78.90	1.44	15.36	0.344	6.19	0.78	0.45	0.53
4.405	14.102	77.50	1.15	9.51	0.305	6.36	0.74	0.44	0.63
4.505	14.232	77.00	1.14	14.16	0.301	6.44	0.75	0.47	0.64
4.605	14.361	77.30	1.22	12.59	0.319	5.95	0.75	0.51	0.71
4.705	14.491	76.80	1.28	10.37	0.297	6.44	0.76	0.42	0.59
4.805	14.622	77.00	1.40	14.11	0.300	6.42	0.73	0.48	0.69
4.905	14.751	76.90	1.19	13.50	0.296	6.53	0.72	0.47	0.65
5.005	14.882	76.70	1.39	17.23	0.311	6.25	0.73	0.51	0.72
5.105	15.012	78.00	1.26	12.76	0.319	6.18	0.73	0.56	0.75
5.205	15.138	84.90	1.36	16.83	0.319	6.18	0.78	0.57	0.69
5.305	15.249	89.40	1.94	5.41	0.312	6.63	0.78	0.25	0.45
5.405	15.361	90.90	1.52	6.74	0.320	6.45	0.64	0.36	0.50
5.505	15.472	89.30	1.30	12.18	0.308	6.28	0.73	0.48	0.67
5.605	15.584	89.50	1.36	14.38	0.340	6.05	0.75	0.47	0.59
5.705	15.721	43.90	1.34	10.67	0.324	6.28	0.72	0.48	0.65
5.805	15.949	43.90	1.21	6.14	0.344	5.01	0.70	0.57	0.88
5.905	16.177	43.90	1.23	5.86	0.267	5.82	0.63	0.48	1.31
6.005	16.405	43.90	1.30	8.05	0.302	5.21	0.65	0.45	1.11
6.105	16.632	43.90	1.18	8.46	0.284	5.70	0.60	0.43	1.22
6.205	16.860	43.90	1.57	5.14	0.317	5.12	0.61	0.46	1.06
6.305	17.088	43.90	2.04	16.59	0.334	5.71	0.70	0.46	0.69
6.335	17.156	43.90	1.41	5.12	0.333	5.17	0.65	0.45	0.86
6.405	17.316	43.90	1.45	2.70	0.344	4.77	0.68	0.47	1.20
6.505	17.544	43.90	1.22	2.51	0.353	4.75	0.61	0.52	1.00