Citation:

PANGAEA.980076

Name: n-alkane, fatty acid, and lignin phenol-based indices from sediment core PS51/159-10
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 PS51-159-10, 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: 76.766667 * Longitude: 116.031667

Date/Time Start: 1998-08-18T01:41:00 * Date/Time End: 1998-08-18T01:52:00

Minimum DEPTH, sediment/rock: 0.075 m * Maximum DEPTH, sediment/rock: 4.015 m

Event(s):

PS51/159-10 * Latitude: 76.766667 * Longitude: 116.031667 * Date/Time Start: 1998-08-18T01:41:00 * Date/Time End: 1998-08-18T01:52:00 * Elevation: -60.0 m * Penetration: 5.1 m * Recovery: 4.02 m * Location: Laptev Sea * Campaign: (PS51 Transdrift-V) * Basis: * Method/Device: Kasten corer (KAL) * Comment: 5 core sections: 0.04-1.03, 1.04-2.03, 2.04-3.02, 3.03-4.02, 4.03-4.2 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:

344 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
0.075	0.286	39.10	0.92	0.01119	0.405	4.81	0.69	0.46	1.10
0.125	0.523	10.00	1.14	0.00899	0.325	5.56	0.69	0.49	1.08
0.175	1.026	9.55	0.99	0.00889	0.334	5.34	0.69	0.47	1.10
0.225	1.573	9.32	1.04	0.01202	0.346	5.59	0.69	0.51	1.10
0.270	2.046	9.50	0.96	0.01031	0.350	5.21	0.68	0.47	1.06
0.325	2.624	9.51	0.99	0.01175	0.359	5.21	0.69	0.49	1.06
0.425	3.716	8.94	1.09	0.01051	0.370	5.25	0.68	0.51	1.09
0.525	4.819	11.00	0.91	0.01434	0.348	5.12	0.68	0.50	1.03
0.625	5.460	21.20	0.94	0.01529	0.368	5.07	0.71	0.50	0.99
0.730	5.910	23.30	0.87	0.01441	0.347	5.32	0.69	0.51	1.00
0.825	6.313	22.90	1.02	0.01580	0.355	5.37	0.70	0.50	0.91
0.925	6.811	15.60	0.96	0.01889	0.367	5.55	0.70	0.51	0.81
1.025	7.532	14.30	1.11	0.02422	0.390	5.40	0.73	0.50	0.68
1.100	8.049	14.20	1.03	0.02407	0.373	5.60	0.73	0.50	0.68
1.200	8.763	14.10	1.02	0.02342	0.381	5.46	0.71	0.44	0.65
1.300	9.463	23.50	1.07	0.02716	0.378	5.61	0.69	0.51	0.76
1.400	9.601	135.00	1.01	0.03172	0.395	5.49	0.71	0.54	0.73
1.500	9.674	137.00	1.07	0.02459	0.399	5.24	0.73	0.51	0.74
1.600	9.748	136.00	0.96	0.02562	0.384	5.37	0.72	0.52	0.74
1.700	9.821	138.00	0.98	0.02513	0.375	5.47	0.73	0.53	0.74
1.805	9.897	136.00	1.04	0.02548	0.410	5.40	0.73	0.52	0.72
1.900	9.968	135.00	0.93	0.01782	0.400	5.21	0.71	0.50	0.77
2.000	10.041	136.00	0.95	0.03441	0.397	5.43	0.70	0.54	0.77
2.100	10.115	138.00	0.96	0.02977	0.376	5.69	0.71	0.49	0.76
2.195	10.167	252.00	0.99	0.02422	0.375	5.51	0.70	0.54	0.82
2.300	10.206	279.00	1.02	0.02952	0.386	5.56	0.73	0.47	0.74
2.400	10.241	279.00	1.00	0.02609	0.390	5.33	0.71	0.48	0.75
2.500	10.277	282.00	1.04	0.02517	0.387	5.38	0.73	0.48	0.75
2.600	10.312	282.00	1.02	0.02818	0.388	5.24	0.70	0.56	0.86
2.700	10.348	281.00	1.03	0.03081	0.386	5.54	0.72	0.58	0.84
2.800	10.383	280.00	1.10	0.02977	0.384	5.51	0.71	0.55	0.81
2.900	10.419	283.00	1.04	0.02519	0.372	5.50	0.72	0.48	0.73
3.000	10.454	280.00	1.02	0.01962	0.390	5.39	0.72	0.46	0.73
3.120	10.497	188.00	0.95	0.02869	0.400	5.32	0.76	0.49	0.82
3.210	10.603	63.00	1.01	0.03347	0.376	5.55	0.78	0.47	0.74
3.300	10.747	62.70	1.09	0.02758	0.386	5.74	0.75	0.50	0.66
3.415	10.930	62.30	0.93	0.03836	0.388	5.49	0.79	0.53	0.79
3.505	11.074	63.50	0.89	0.04103	0.382	5.49	0.79	0.54	0.82
3.625	11.263	64.00	1.01	0.03119	0.373	5.57	0.80	0.52	0.81
3.715	11.404	62.30	0.95	0.03264	0.404	5.31	0.80	0.55	0.82
3.805	11.552	62.40	1.07	0.03544	0.383	5.58	0.83	0.49	0.71
3.925	11.742	62.00	1.00	0.03327	0.363	5.84	0.88	0.52	0.78
4.015	11.887	63.20	0.97	0.04474	0.352	5.96	0.94	0.63	0.75