Citation:

PANGAEA.933814

Name: Concentrations of biomarkers (aliphatic fraction) in Hala Hu sediment core H7
Published: 2021-07-16
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Alkenone; Biomarker; China; highly branched isoprenoid (HBI); isotopes; n-alkane; n-alkene; Paleoclimate; Sediment core; Tibetan Plateau

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Published: 2021-07-16 • DOI registered: 2021-12-09

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Abstract:

Concentrations of aquatic (mid-chain n-alkenes, C20-HBIs) and terrestrial (long-chain n-alkanes) biomarker groups were analysed in core H7 from Hala Hu, China. The compounds were quantified relative to an internal standard (5α-androstane) using an Agilent 7890A gas chromatography (GC) instrument, equipped with a mass selective detector (MSD; Agilent 5975C Series) and a flame ionization detector (FID; Agilent 7683B Series). For the GC, a Restek DB-5 column (30 m, inner diameter 0.25 mm, film thickness 0.25 μm) was used.

The lake is located on the northern margin of the Tibetan Plateau (97.24 - 97.47°E, 38.12 - 38.25°N, 4078 m above sea level), along the modern marginal zone between the Asian Summer Monsoon (ASM) and westerlies influences. The core was drilled at the deepest point (65 m) of the lake and extends from 212 to 636 cm sediment depth. According to the age-model (Yan et al., 2020) the covered time period is 7462 - 23610 cal yr BP.

Keyword(s):

Alkenone; Biomarker; China; highly branched isoprenoid (HBI); isotopes; n-alkane; n-alkene; Paleoclimate; Sediment core; Tibetan Plateau

Further details:

Yan, Dada; Wünnemann, Bernd; Zhang, Yongzhan (2020): Late Quaternary lacustrine Ostracoda and their implications for hydro-climatic variation in Northeastern Tibetan Plateau. Earth-Science Reviews, 207, 103251, https://doi.org/10.1016/j.earscirev.2020.103251

Funding:

German Research Foundation (DFG), grant/award no. 259668396 : Palaeoclimatology of Central Asia and the northeastern Tibetan Plateau on basis of compound-specific isotope analysis of biomarkers

Coverage:

Latitude: 38.304980 * Longitude: 97.570810

Minimum DEPTH, sediment/rock: 2.12 m * Maximum DEPTH, sediment/rock: 6.36 m

Event(s):

Hala_Hu_2010-H7 (H7) * Latitude: 38.304980 * Longitude: 97.570810 * Elevation: 4079.0 m * Lake water depth: 64.5 m * Location: Hala Hu * Method/Device: Niederreiter Piston corer (NPC) * Comment: winter 2010

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m	Aichner, Bernhard		Geocode – composite depth
2	Calendar age, minimum/young	Cal age min	ka BP	Aichner, Bernhard		Age model of Yan et al., 2020
3	Calendar age, maximum/old	Cal age max	ka BP	Aichner, Bernhard		Age model of Yan et al., 2020
4	Calendar age	Cal age	ka BP	Aichner, Bernhard		wmean; Age model of Yan et al., 2020
5	Highly branched isoprenoids, C20, per unit sediment mass	C20 HBI/sed	μg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
6	n-Alkene C21:1, per unit sediment mass	C21:1/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
7	n-Alkane C21, per unit sediment mass	C21/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
8	2,6,10,15,19-pentamethylicosane, per unit sediment mass	PMI/sed	μg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
9	n-Alkene C23:1, per unit sediment mass	C23:1/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
10	n-Alkane C23, per unit sediment mass	C23/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
11	n-Alkene C25:1, per unit sediment mass	C25:1/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
12	n-Alkane C25, per unit sediment mass	C25/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
13	n-Alkene C27:1, per unit sediment mass	C27:1/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
14	n-Alkane C27, per unit sediment mass	C27/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
15	n-Alkane C29, per unit sediment mass	C29/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
16	n-Alkane C31, per unit sediment mass	C31/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
17	n-Alkane C33, per unit sediment mass	C33/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw
18	n-Alkane C35, per unit sediment mass	C35/sed	µg/g	Aichner, Bernhard	Gas chromatography - mass spectrometry - flame ionization detector (GC/MS/FID) Agilent	dw

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1615 data points

Data

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

1 Depth sed [m]	2 Cal age min [ka BP]	3 Cal age max [ka BP]	4 Cal age [ka BP]	5 C20 HBI/sed [μg/g]	6 C21:1/sed [µg/g]	7 C21/sed [µg/g]	8 PMI/sed [μg/g]	9 C23:1/sed [µg/g]	10 C23/sed [µg/g]	11 C25:1/sed [µg/g]	12 C25/sed [µg/g]	13 C27:1/sed [µg/g]	14 C27/sed [µg/g]	15 C29/sed [µg/g]	16 C31/sed [µg/g]	17 C33/sed [µg/g]	18 C35/sed [µg/g]
2.12	7.194	7.832	7.462	9.02	0.13	1.22	0.11	2.16	3.40	10.67	4.94	9.25	6.00	14.01	11.76	3.52	0.26
2.16	7.277	8.078	7.604	14.10	0.14	2.29	0.35	6.30	8.34	8.60	12.07	12.19	17.04	32.62	32.84	8.18	0.82
2.23	7.432	8.398	7.856	7.08	0.03	0.65	0.06	2.03	2.07	2.44	2.75	3.31	4.06	8.59	7.32	1.76	0.18
2.27	7.529	8.570	7.996	5.14	0.07	0.95	0.09	3.79	5.46	3.97	7.22	3.67	12.72	24.73	28.46	5.61	0.56
2.34	7.702	8.863	8.240	4.87	0.00	0.00	0.00	2.08	0.87	1.67	1.92	2.08	2.99	6.45	7.57	1.92	0.15
2.40	7.864	9.096	8.448	2.57	0.07	0.38	0.02	2.53	1.80	1.84	1.86	1.12	2.88	5.34	5.50	1.27	0.16
2.50	8.170	9.472	8.800	1.77	0.08	0.43	0.01	2.70	1.75	1.02	1.83	1.31	2.76	5.08	4.96	1.12	0.12
2.53	8.280	9.568	8.907	3.35	0.01	0.06	0.03	2.46	2.52	2.95	3.04	2.40	4.62	5.18	5.69	1.46	0.15
2.63	8.590	9.910	9.251	1.90	0.00	0.00	0.00	2.27	1.35	2.20	2.25	2.78	6.25	14.48	17.71	3.14	0.25
2.69	8.801	10.095	9.459	2.01	0.03	0.24	0.02	1.43	1.41	1.21	1.45	1.04	2.27	3.86	4.14	1.11	0.14
2.79	9.137	10.393	9.805	2.23	0.04	0.48	0.00	1.45	2.28	0.82	2.04	0.29	3.09	6.42	7.72	2.26	0.23
2.80	9.162	10.435	9.840	1.87	0.04	0.32	0.04	1.21	2.08	0.82	1.92	0.14	2.75	4.45	4.69	1.31	0.04
2.82	9.268	10.477	9.909	1.34	0.11	0.53	0.02	5.13	2.72	4.33	3.40	1.03	5.22	9.59	10.11	2.86	0.17
2.85	9.367	10.567	10.011	0.67	0.03	0.73	0.03	3.16	3.97	2.20	3.45	0.39	4.39	7.66	8.93	2.91	0.23
2.91	9.625	10.720	10.216	0.81	0.02	0.37	0.01	2.44	1.72	1.61	1.34	0.27	1.99	3.39	4.00	1.26	0.15
2.97	9.893	10.881	10.430	0.23	0.46	0.64	0.00	2.11	2.58	1.96	1.25	1.26	1.15	2.01	1.88	0.52	0.02
3.01	10.074	10.984	10.570	0.04	0.01	0.16	0.02	0.07	0.91	0.22	1.43	0.15	2.40	5.13	6.85	2.30	0.18
3.04	10.217	11.051	10.674	0.56	0.00	0.07	0.00	0.00	0.29	0.00	0.55	0.00	1.68	4.02	5.53	1.08	0.10
3.06	10.337	11.096	10.742	0.00	0.00	0.10	0.00	0.00	0.66	0.00	1.12	0.00	3.56	7.26	9.20	1.85	0.18
3.10	10.540	11.174	10.879	0.00	0.00	0.08	0.00	0.00	0.34	0.00	0.70	0.00	2.24	5.10	6.30	1.10	0.11
3.12	10.693	11.198	10.944	0.00	0.00	0.02	0.00	0.00	0.35	0.00	0.79	0.00	2.02	4.54	5.45	0.98	0.09
3.21	10.910	11.576	11.212	0.01	0.00	0.08	0.02	0.00	0.40	0.00	0.57	0.00	1.43	3.23	4.24	0.58	0.03
3.25	10.970	11.752	11.328	0.00	0.00	0.03	0.00	0.00	0.23	0.00	0.46	0.00	1.24	2.46	3.03	0.47	0.05
3.27	11.021	11.819	11.386	7.46	0.00	1.01	0.09	0.00	2.75	0.00	3.38	0.00	7.91	17.02	23.01	4.10	0.37
3.31	11.105	11.980	11.502	0.00	0.06	1.39	0.16	3.53	8.94	3.82	6.47	0.44	6.59	11.96	13.07	2.65	0.21
3.33	11.148	12.045	11.560	0.00	0.00	0.03	0.00	0.00	0.16	0.00	0.33	0.00	0.85	1.80	2.26	0.34	0.04
3.38	11.249	12.217	11.702	0.01	0.01	0.06	0.02	0.03	0.38	0.03	0.46	0.00	1.03	2.00	2.40	0.41	0.02
3.42	11.339	12.356	11.817	0.00	0.02	0.19	0.02	0.27	1.12	0.09	1.33	0.05	2.18	4.88	5.79	1.41	0.14
3.43	11.359	12.393	11.845	0.00	0.00	0.00	0.00	0.00	1.49	0.00	1.86	0.00	3.01	6.50	8.08	1.21	0.13
3.44	11.379	12.428	11.873	0.00	0.00	0.05	0.07	0.04	0.46	0.03	0.34	0.00	0.43	0.78	1.11	0.09	0.07
3.46	11.420	12.496	11.928	0.00	0.05	0.12	0.00	2.80	0.79	1.67	0.59	0.19	0.75	1.29	1.48	0.31	0.03
3.49	11.487	12.596	12.014	0.00	0.00	0.24	0.00	0.00	1.97	0.00	1.14	0.00	1.27	2.73	3.78	0.59	0.05
3.54	11.611	12.755	12.162	0.00	0.02	0.40	0.00	0.19	2.67	0.91	1.70	0.24	1.40	2.52	2.76	0.43	0.04
3.55	11.630	12.794	12.191	0.00	0.01	0.17	0.00	3.02	7.97	2.26	2.39	0.69	2.38	4.44	4.98	0.75	0.07
3.61	11.793	12.959	12.367	0.00	0.00	0.00	0.00	0.00	0.72	0.00	1.33	0.00	2.45	5.66	6.52	1.49	0.18
3.64	11.862	13.047	12.453	0.00	0.02	0.08	0.00	1.64	0.42	0.94	0.37	0.13	0.43	0.78	0.86	0.19	0.03
3.67	11.952	13.130	12.539	0.00	0.02	0.09	0.01	1.39	0.79	1.13	0.94	0.38	1.45	3.05	3.52	0.68	0.04
3.74	12.132	13.333	12.740	0.00	0.02	0.33	0.07	0.47	1.92	0.17	1.86	0.00	2.62	4.47	5.21	1.09	0.11
3.81	12.330	13.535	12.942	0.00	0.02	0.31	0.03	0.65	2.15	0.31	2.07	0.00	2.72	5.38	6.10	1.16	0.10
3.84	12.410	13.619	13.028	0.00	0.00	0.03	0.00	0.09	0.48	0.12	0.97	0.00	2.77	5.71	7.11	1.40	0.15
3.86	12.473	13.677	13.086	0.00	0.00	0.02	0.00	0.11	0.46	0.13	0.95	0.00	1.72	3.12	4.17	1.41	0.17
3.96	12.759	13.932	13.378	0.00	0.03	0.37	0.03	2.49	2.19	1.35	1.60	0.00	1.92	2.87	2.82	0.55	0.05
4.02	12.933	14.078	13.551	0.00	0.10	1.32	0.16	16.16	11.13	5.14	6.82	0.00	3.86	4.64	4.75	1.02	0.11
4.06	13.050	14.179	13.666	0.00	0.02	0.26	0.00	4.62	8.20	4.72	6.52	0.57	5.03	7.31	7.14	1.52	0.15
4.08	13.112	14.226	13.725	0.00	0.00	0.31	0.00	0.00	6.54	0.00	4.77	0.00	4.20	6.33	6.04	0.77	0.08
4.14	13.284	14.378	13.901	0.00	0.00	0.40	0.00	0.00	1.72	0.00	2.31	0.00	2.70	4.49	5.27	1.72	0.14
4.17	13.394	14.448	13.988	0.00	0.33	4.27	0.29	57.10	26.44	30.92	17.41	2.16	7.08	6.61	6.48	1.59	0.19
4.29	13.716	14.704	14.303	0.00	0.27	3.69	0.51	36.02	17.24	23.76	9.81	2.82	6.05	7.89	7.79	1.99	0.24
4.38	13.902	14.863	14.450	0.00	0.23	3.04	0.00	97.07	13.50	76.53	6.87	12.65	6.38	8.44	7.21	1.97	0.22
4.41	13.957	14.914	14.498	0.00	0.45	6.98	0.43	120.07	27.58	87.50	11.90	11.00	10.85	10.37	8.76	2.26	0.18
4.44	14.005	14.970	14.546	0.00	0.48	6.98	0.29	157.88	30.26	92.13	15.10	11.95	7.61	8.56	6.66	1.76	0.21
4.48	14.072	15.030	14.609	0.00	0.64	9.72	0.29	168.02	34.46	99.84	12.64	14.10	6.60	7.36	5.31	1.37	0.12
4.51	14.121	15.083	14.658	0.00	0.77	13.22	0.60	267.25	51.28	163.38	18.31	22.91	7.19	7.46	4.95	1.06	0.13
4.57	14.240	15.183	14.756	0.00	0.02	0.34	0.12	4.42	1.65	2.02	1.43	0.00	2.25	2.79	2.93	0.69	0.06
4.60	14.296	15.240	14.804	0.00	0.06	0.80	0.25	10.76	4.51	4.84	3.18	0.00	3.48	3.72	4.23	1.05	0.08
4.68	14.427	15.367	14.929	0.00	0.01	0.15	0.02	0.41	0.43	0.26	0.53	0.00	1.09	1.45	1.72	0.55	0.05
4.74	14.532	15.467	15.025	0.00	0.01	0.16	0.04	0.10	0.82	0.32	1.13	0.00	1.93	2.73	3.09	0.92	0.10
4.78	14.598	15.527	15.089	0.00	0.02	0.34	0.01	0.05	1.33	1.28	1.75	0.71	2.33	5.06	6.41	1.64	0.20
4.88	14.783	15.702	15.249	0.00	0.00	0.40	0.12	0.00	0.86	0.00	1.08	0.00	1.84	2.51	2.73	0.85	0.09
4.92	14.858	15.769	15.313	0.00	0.00	0.09	0.08	0.00	0.68	0.00	1.43	0.00	2.36	3.11	3.50	1.08	0.12
4.94	14.893	15.799	15.346	0.00	0.00	0.83	0.05	0.28	1.80	0.33	2.50	0.00	4.24	6.36	7.27	4.24	0.38
4.98	14.971	15.865	15.411	0.00	0.00	0.60	1.27	0.00	1.34	0.00	2.39	0.00	4.01	5.59	6.48	2.01	0.22
5.04	15.079	15.958	15.505	0.00	0.00	0.29	0.20	0.00	0.74	0.00	1.13	0.00	2.00	2.55	3.04	0.92	0.07
5.09	15.180	16.034	15.585	0.00	0.00	0.62	0.00	0.00	1.25	0.00	2.07	0.00	3.44	5.18	6.43	1.99	0.20
5.10	15.200	16.052	15.601	0.00	0.00	0.14	0.00	0.00	0.97	0.00	1.91	0.00	3.15	4.60	5.59	1.77	0.19
5.12	15.243	16.075	15.632	0.00	0.00	0.52	0.00	0.00	1.23	0.00	1.66	0.00	2.52	3.71	4.55	1.35	0.15
5.16	15.317	16.128	15.694	0.00	0.00	0.18	0.00	0.00	1.29	0.00	1.90	0.00	3.06	4.33	5.33	1.59	0.19
5.22	15.426	16.217	15.788	0.00	0.00	0.70	0.00	0.00	2.06	0.00	2.55	0.00	3.47	5.04	6.07	1.76	0.25
5.26	15.499	16.276	15.852	0.00	0.00	0.21	0.21	0.21	2.19	0.24	2.96	0.00	3.83	5.38	6.25	1.62	0.43
5.28	15.541	16.305	15.884	0.00	0.02	0.22	2.18	2.18	1.52	1.38	1.23	0.00	1.59	2.38	2.98	0.95	0.17
5.36	15.710	16.431	16.009	0.00	0.04	0.80	0.00	6.90	5.09	4.28	3.99	0.00	4.72	7.15	9.28	2.95	0.24
5.42	15.829	17.160	16.340	0.00	0.00	0.27	0.00	0.00	1.56	0.00	1.78	0.00	2.68	4.01	4.97	1.56	0.17
5.44	15.939	17.350	16.498	0.00	0.00	0.50	0.00	0.00	1.60	0.00	1.76	0.00	2.60	4.12	5.66	1.95	0.21
5.48	16.094	17.888	16.807	0.00	0.00	0.08	0.00	0.00	0.97	0.00	2.74	0.00	4.25	6.06	6.87	2.13	0.19
5.56	16.480	18.701	17.440	0.00	0.91	1.77	0.00	48.91	9.26	31.93	3.35	4.84	2.51	2.86	2.75	0.84	0.13
5.60	16.693	19.047	17.758	0.00	0.00	0.13	0.00	0.00	0.62	0.00	0.82	0.00	1.64	2.61	3.41	1.06	0.12
5.62	16.775	19.268	17.914	0.00	0.00	0.06	0.00	0.47	0.83	0.47	1.03	0.00	1.53	2.74	3.66	1.21	0.10
5.66	17.050	19.593	18.230	0.00	0.00	0.27	0.00	0.00	0.72	0.00	1.51	0.00	2.03	3.29	4.80	1.25	0.15
5.68	17.169	19.774	18.385	0.00	0.00	0.00	0.00	0.00	0.34	0.00	0.57	0.00	0.89	1.82	2.68	1.08	0.12
5.72	17.379	20.141	18.697	0.00	0.00	0.01	0.00	0.00	0.28	0.00	0.62	0.00	1.12	1.92	2.51	0.84	0.07
5.74	17.540	20.261	18.855	0.00	0.15	0.97	0.12	10.03	7.61	4.41	4.34	0.33	2.11	1.97	2.31	0.72	0.04
5.78	17.798	20.564	19.171	0.00	0.11	0.71	0.03	6.15	4.99	3.04	3.22	0.13	2.61	3.38	4.46	1.59	0.20
5.80	17.934	20.708	19.327	0.00	0.00	0.00	0.00	0.00	0.23	0.00	0.77	0.00	1.36	2.56	3.60	1.20	0.12
5.84	18.221	21.018	19.640	0.00	0.01	0.22	0.00	0.06	0.75	0.07	1.02	0.00	1.79	3.07	4.17	1.40	0.13
5.90	18.678	21.474	20.114	0.00	0.00	0.00	0.00	0.01	0.06	0.02	0.18	0.00	0.41	0.74	1.12	0.40	0.04
5.92	18.805	21.661	20.277	0.00	0.00	0.31	0.00	0.00	0.52	0.00	0.96	0.00	1.71	2.76	3.79	1.38	0.12
5.98	19.299	22.084	20.764	0.00	0.00	0.14	0.00	0.00	0.86	0.00	1.16	0.00	1.70	3.03	4.34	1.52	0.17
6.04	19.813	22.501	21.249	0.00	0.02	0.28	0.00	0.25	1.22	0.22	1.33	0.00	2.14	4.11	5.89	2.07	0.21
6.08	20.147	22.766	21.559	0.00	0.00	0.06	0.00	0.00	0.47	0.00	0.91	0.00	1.76	2.70	3.55	1.07	0.13
6.10	20.337	22.889	21.720	0.00	0.00	0.15	0.00	0.00	0.73	0.00	1.31	0.00	2.22	3.66	4.63	1.62	0.13
6.20	21.223	23.468	22.502	0.00	0.00	0.15	0.00	0.00	0.57	0.00	0.88	0.00	1.45	2.39	3.24	1.07	0.13
6.26	21.829	23.789	22.975	0.00	0.00	0.08	0.00	0.13	0.54	0.66	0.82	0.53	1.27	2.49	2.55	0.75	0.07
6.31	22.429	24.021	23.375	0.00	0.00	0.13	0.00	0.00	0.91	0.00	1.33	0.00	1.78	2.67	2.88	1.05	0.12
6.35	22.974	24.191	23.689	0.00	0.00	1.41	0.00	0.00	6.48	0.00	6.19	0.00	4.80	6.53	7.58	2.35	0.21
6.36	23.089	24.239	23.767	0.00	0.00	0.93	0.00	0.00	5.53	0.00	5.25	0.00	5.16	6.54	6.97	2.27	0.27