Citation:

PANGAEA.972122

Name: Concentrations and compound specific carbon isotope (δ13C) of n-alkanes in 25 surface sediments of Futou Lake in the Yangtze floodplain China
Published: 2024-09-02
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Lake sediment; n-alkane; Yangtze River

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Published: 2024-09-02 • DOI registered: 2024-10-01

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Abstract:

This data compiles concentrations and compound specific carbon isotope (δ13C) of n-alkanes in 25 surface sediments of Futou Lake in the Yangtze floodplain China. The surface sediments were collected using a Kayak gravity corer and the top 1 cm sediments were sampled in April 2023. Concentrations of n-alkanes were analysed using a Shimadzu GC2010 gas chromatography (GC) equipped with a flame ionization detector (FID) and a DB-5MS column (30 m × 0.25 mm × 0.25 μm film thickness). Compound specific carbon isotope (δ13C) of n-alkanes were analyzed using a Finnigan Trace GC instrument coupled with a Finnigan Delta XP isotope ratio mass spectrometer (GC-IRMS). Both the concentrations and compound specific carbon isotope (δ13C) of n-alkanes were analysed at State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences. Each sample of the compound specific carbo isotopes was analyzed at least twice with peak intensities (m/z 44) > 500 mv and the standard deviation < 0.5‰ were identified as reliable results. Results were reported in the delta notation (‰) relative to Vienna Peedee Belemnite (VPDB).

Keyword(s):

Lake sediment; n-alkane; Yangtze River

Funding:

National Natural Science Foundation of China (NSFC), grant/award no. 42171166

National Natural Science Foundation of China (NSFC), grant/award no. 42201173: Quantitative reconstruction of centurial high-resolution underwater light variability using sedimentary pigments

National Natural Science Foundation of China (NSFC), grant/award no. U20A2094: Climate and biological processes in the geological evolution of typical key zones in western Hubei

Coverage:

Median Latitude: 30.027209 * Median Longitude: 114.208489 * South-bound Latitude: 29.974421 * West-bound Longitude: 114.183959 * North-bound Latitude: 30.082970 * East-bound Longitude: 114.264700

Date/Time Start: 2023-04-01T00:00:00 * Date/Time End: 2023-04-30T00:00:00

Minimum DEPTH, sediment/rock: 0.01 m * Maximum DEPTH, sediment/rock: 0.01 m

Event(s):

Futou_FT1 (FT1) * Latitude: 30.082970 * Longitude: 114.190100 * Date/Time Start: 2023-04-01T00:00:00 * Date/Time End: 2023-04-30T00:00:00 * Location: Yangtze floodplain, China * Method/Device: Kajak sediment core sampler (KC)

Futou_FT2 (FT2) * Latitude: 30.067572 * Longitude: 114.192180 * Date/Time Start: 2023-04-01T00:00:00 * Date/Time End: 2023-04-30T00:00:00 * Location: Yangtze floodplain, China * Method/Device: Kajak sediment core sampler (KC)

Futou_FT3 (FT3) * Latitude: 30.047810 * Longitude: 114.195162 * Date/Time Start: 2023-04-01T00:00:00 * Date/Time End: 2023-04-30T00:00:00 * Location: Yangtze floodplain, China * Method/Device: Kajak sediment core sampler (KC)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Zeng, Linghan
2	Site	Site		Zeng, Linghan
3	DEPTH, sediment/rock	Depth sed	m	Zeng, Linghan		Geocode
4	LONGITUDE	Longitude		Zeng, Linghan		Geocode
5	LATITUDE	Latitude		Zeng, Linghan		Geocode
6	n-Alkane C17, per unit sediment mass	C17/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
7	n-Alkane C18, per unit sediment mass	C18/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
8	n-Alkane C19, per unit sediment mass	C19/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
9	n-Alkane C20, per unit sediment mass	C20/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
10	n-Alkane C21, per unit sediment mass	C21/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
11	n-Alkane C22, per unit sediment mass	C22/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
12	n-Alkane C23, per unit sediment mass	C23/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
13	n-Alkane C24, per unit sediment mass	C24/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
14	n-Alkane C25, per unit sediment mass	C25/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
15	n-Alkane C26, per unit sediment mass	C26/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
16	n-Alkane C27, per unit sediment mass	C27/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
17	n-Alkane C28, per unit sediment mass	C28/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
18	n-Alkane C29, per unit sediment mass	C29/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
19	n-Alkane C30, per unit sediment mass	C30/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
20	n-Alkane C31, per unit sediment mass	C31/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
21	n-Alkane C32, per unit sediment mass	C32/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
22	n-Alkane C33, per unit sediment mass	C33/sed	µg/g	Zeng, Linghan	Gas chromatograph, Shimadzu, GC2010
23	n-Alkane C23, δ13C	C23 δ13C	‰ PDB	Zeng, Linghan	Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)
24	n-Alkane C25, δ13C	C25 δ13C	‰ PDB	Zeng, Linghan	Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)
25	n-Alkane C27, δ13C	C27 δ13C	‰ PDB	Zeng, Linghan	Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)
26	n-Alkane C29, δ13C	C29 δ13C	‰ PDB	Zeng, Linghan	Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)
27	n-Alkane C31, δ13C	C31 δ13C	‰ PDB	Zeng, Linghan	Gas chromatography - isotope ratio mass spectrometry (GC-IRMS)

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

563 data points

Data

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

1 Event	2 Site	3 Depth sed [m]	4 Longitude	5 Latitude	6 C17/sed [µg/g]	7 C18/sed [µg/g]	8 C19/sed [µg/g]	9 C20/sed [µg/g]	10 C21/sed [µg/g]	11 C22/sed [µg/g]	12 C23/sed [µg/g]	13 C24/sed [µg/g]	14 C25/sed [µg/g]	15 C26/sed [µg/g]	16 C27/sed [µg/g]	17 C28/sed [µg/g]	18 C29/sed [µg/g]	19 C30/sed [µg/g]	20 C31/sed [µg/g]	21 C32/sed [µg/g]	22 C33/sed [µg/g]	23 C23 δ13C [‰ PDB]	24 C25 δ13C [‰ PDB]	25 C27 δ13C [‰ PDB]	26 C29 δ13C [‰ PDB]	27 C31 δ13C [‰ PDB]
Futou_FT1	FT1	0.01	114.19010	30.08297	0.24	0.07	0.12	0.13	0.16	0.26	0.74	0.77	1.40	0.99	1.92	1.11	2.85	0.74	2.01	0.58	1.02	-30.00		-30.60	-30.60	-31.10
Futou_FT2	FT2	0.01	114.19218	30.06757	0.92	0.14	0.16	0.17	0.14	0.11	0.50	0.27	1.40	0.41	1.36	0.43	1.52	0.35	0.94	0.20	0.42	-29.50	-29.40	-30.90	-30.70	-31.30
Futou_FT3	FT3	0.01	114.19516	30.04781	0.62	0.05	0.09	0.05	0.08	0.05	0.27	0.12	0.63	0.20	0.80	0.24	0.86	0.14	0.58	0.12	0.23	-28.80	-28.00	-30.00	-29.40	-30.40
Futou_FT4	FT4	0.01	114.19731	30.03688	1.15	0.09	0.11	0.06	0.10	0.06	0.32	0.14	0.71	0.23	0.92	0.24	1.04	0.16	0.75	0.12	0.31	-29.20	-28.20	-29.80	-29.60	-30.40
Futou_FT5	FT5	0.01	114.20102	30.02640	0.68	0.13	0.18	0.18	0.29	0.53	1.31	1.74	2.87	2.47	3.12	2.32	3.05	1.70	2.46	1.41	1.59	-29.40	-28.70	-30.60	-30.00	-31.40
Futou_FT6	FT6	0.01	114.19488	30.01548	0.53	0.06	0.08	0.07	0.11	0.14	0.36	0.37	0.75	0.48	0.89	0.49	0.99	0.34	0.74	0.28	0.39	-30.30	-29.00	-30.60	-30.30	-31.60
Futou_FT7	FT7	0.01	114.19762	30.00399	0.30	0.03	0.05	0.03	0.07	0.04	0.16	0.08	0.39	0.13	0.50	0.16	0.59	0.12	0.49	0.10	0.22		-28.80	-30.10	-30.30	-31.10
Futou_FT8	FT8	0.01	114.19946	29.99322	0.15	0.01	0.02	0.01	0.03	0.02	0.07	0.04	0.16	0.05	0.21	0.07	0.27	0.05	0.24	0.04	0.10	-30.40	-29.20	-30.50	-30.10	-31.00
Futou_FT9	FT9	0.01	114.19503	29.98195	0.33	0.04	0.05	0.04	0.06	0.04	0.21	0.10	0.52	0.15	0.59	0.18	0.76	0.14	0.54	0.10	0.26		-30.60	-31.20	-31.60	-31.50
Futou_FT10	FT10	0.01	114.18396	29.97442	0.23	0.04	0.05	0.04	0.06	0.04	0.22	0.10	0.52	0.15	0.61	0.18	0.75	0.14	0.54	0.10	0.26	-31.60	-30.40	-32.10	-31.10	-31.00
Futou_FT11	FT11	0.01	114.20180	30.08156	0.26	0.03	0.06	0.05	0.06	0.04	0.22	0.09	0.54	0.14	0.59	0.16	0.65	0.12	0.44	0.07	0.19	-29.40	-28.50	-30.20	-30.10	-30.90
Futou_FT12	FT12	0.01	114.21130	30.06620	0.55	0.04	0.11	0.08	0.09	0.06	0.42	0.14	0.98	0.19	0.88	0.20	0.94	0.12	0.51	0.09	0.22	-29.00	-27.50	-28.50	-29.20	-30.60
Futou_FT13	FT13	0.01	114.21310	30.05232	0.68	0.06	0.08	0.06	0.07	0.04	0.23	0.09	0.51	0.12	0.55	0.15	0.61	0.08	0.36	0.06	0.14	-27.90	-27.30	-29.10	-29.40	-30.30
Futou_FT14	FT14	0.01	114.22080	30.03979	0.58	0.05	0.08	0.11	0.07	0.05	0.27	0.12	0.66	0.15	0.70	0.21	0.83	0.10	0.47	0.07	0.18	-27.90	-27.30	-28.50	-29.70	-30.00
Futou_FT15	FT15	0.01	114.22460	30.02499	0.58	0.05	0.08	0.10	0.07	0.05	0.28	0.11	0.62	0.15	0.64	0.17	0.75	0.10	0.42	0.07	0.18	-28.30	-27.90	-29.50	-29.50	-30.30
Futou_FT16	FT16	0.01	114.22720	30.01200	0.33	0.03	0.04	0.03	0.04	0.03	0.16	0.08	0.36	0.12	0.40	0.13	0.46	0.09	0.33	0.06	0.13	-28.40	-28.10		-29.76
Futou_FT17	FT17	0.01	114.24490	30.00123	0.71	0.06	0.11	0.08	0.10	0.08	0.37	0.22	0.86	0.35	0.95	0.36	1.01	0.26	0.62	0.17	0.27	-28.00	-26.90	-28.30	-29.00	-30.10
Futou_FT18	FT18	0.01	114.26470	30.00186	0.54	0.05	0.10	0.07	0.09	0.06	0.36	0.14	0.69	0.22	0.80	0.23	0.90	0.17	0.60	0.10	0.23	-27.60	-27.12	-28.50	-29.30	-30.20
Futou_FT19	FT19	0.01	114.22820	29.98973	0.61	0.05	0.12	0.07	0.10	0.07	0.40	0.16	0.78	0.25	0.90	0.26	1.02	0.19	0.67	0.12	0.25	-29.50	-29.08	-31.00	-30.31
Futou_FT20	FT20	0.01	114.20790	29.98196	0.12	0.01	0.01	0.01	0.02	0.02	0.06	0.05	0.12	0.08	0.19	0.09	0.29	0.07	0.26	0.06	0.12		-29.31
Futou_FT21	FT21	0.01	114.21020	30.00244	0.42	0.04	0.05	0.03	0.04	0.03	0.16	0.10	0.38	0.15	0.49	0.18	0.59	0.13	0.47	0.10	0.22	-30.20	-28.66	-31.00	-31.80	-32.10
Futou_FT22	FT22	0.01	114.21040	30.02259	0.87	0.07	0.10	0.05	0.08	0.07	0.30	0.21	0.76	0.30	0.92	0.36	1.01	0.21	0.71	0.17	0.30	-29.60	-27.95	-29.40	-30.00	-30.80
Futou_FT23	FT23	0.01	114.20600	30.03911	0.87	0.08	0.13	0.08	0.10	0.10	0.39	0.26	1.01	0.39	1.20	0.48	1.21	0.28	0.88	0.20	0.36	-28.50	-27.34	-29.00	-28.90	-30.50
Futou_FT24	FT24	0.01	114.19960	30.06022	1.28	0.13	0.19	0.12	0.14	0.11	0.54	0.29	1.36	0.41	1.45	0.41	1.67	0.27	0.97	0.19	0.37	-29.10	-28.20	-29.60	-30.20	-31.00
Futou_FT25	FT25	0.01	114.19480	30.07355	2.22	0.20	0.25	0.13	0.16	0.13	0.66	0.33	1.45	0.48	1.74	0.51	1.97	0.41	1.24	0.24	0.48	-29.60	-29.00			-30.90