Citation:

j.quascirev.2019.01.019

Name: Plant wax composition and compound-specific δD data from a loess section in Darai Kalon, Southern Tajikistan covering the last 250 thousand years
Published: 2019-03-04
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Biomarker; CaCO₃; Central Asia; Compound-specific δD; Glacial; Interglacial; Leaf wax; Loess; Long-chain n-alkanes; Long-chain n-carboxylic acids; Plant wax; Pleistocene; Precipitation seasonality; Stable isotopes; Tajikistan; Vegetation

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Published: 2019-03-04 • DOI registered: 2019-04-04

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Abstract:

The data set contains plant wax biomarker and CaCO3 concentration data from the Darai Kalon loess section in Southern Tajikistan over the time-period of the last 250 thousand years. It includes long-chain n-alkane ACL data, long-chain n-carboxylic acid Index-C data as well as CPI and compound-specific δD data for both long-chain n-alkanes and long-chain n-carboxylic acids.

Keyword(s):

Biomarker; CaCO₃; Central Asia; Compound-specific δD; Glacial; Interglacial; Leaf wax; Loess; Long-chain n-alkanes; Long-chain n-carboxylic acids; Plant wax; Pleistocene; Precipitation seasonality; Stable isotopes; Tajikistan; Vegetation

Coverage:

Latitude: 38.384833 * Longitude: 69.833167

Minimum DEPTH, sediment/rock: 0.125 m * Maximum DEPTH, sediment/rock: 50.475 m

Event(s):

Darai_Kalon_loess_section (Darai Kalon loess section) * Latitude: 38.384833 * Longitude: 69.833167 * Elevation: 1600.0 m * Location: Tajik depression

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Sample code/label	Sample label		Häggi, Christoph
2	Depth, top/min	Depth top	m	Häggi, Christoph
3	Depth, bottom/max	Depth bot	m	Häggi, Christoph
4	DEPTH, sediment/rock	Depth sed	m	Häggi, Christoph		Geocode – Depth, average
5	AGE	Age	ka BP	Häggi, Christoph		Geocode
6	Calcium carbonate	CaCO3	%	Häggi, Christoph	Coulometer CM5012 CO2
7	Average chain length, n-Alkanes, C27-C33	ACL 27-33		Häggi, Christoph	Calculated
8	Carbon Preference Index, n-Alkanes (C26-C34)	CPI 26-34		Häggi, Christoph	Calculated
9	Index-C of long-chain n-carboxylic acids	Index C		Häggi, Christoph	Calculated
10	Carbon Preference Index, n-carboxylic acid (C23-C31)	CPI 23-31 CA		Häggi, Christoph	Calculated
11	n-Alkane C29, δD	C29 δD	‰ SMOW	Häggi, Christoph		vs. VSMOW
12	n-Alkane C31, δD	C31 δD	‰ SMOW	Häggi, Christoph		vs. VSMOW
13	n-Alkanes C29-C31 average, δD	C29-C31 avg δD	‰ SMOW	Häggi, Christoph		vs. VSMOW
14	n-caboxylic acid C28, δD	C28 δD	‰ SMOW	Häggi, Christoph		vs. VSMOW

License:

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

Size:

1298 data points

Data

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

1 Sample label	2 Depth top [m]	3 Depth bot [m]	4 Depth sed [m]	5 Age [ka BP]	6 CaCO3 [%]	7 ACL 27-33	8 CPI 26-34	9 Index C	10 CPI 23-31 CA	11 C29 δD [‰ SMOW]	12 C31 δD [‰ SMOW]	13 C29-C31 avg δD [‰ SMOW]	14 C28 δD [‰ SMOW]
Dk 1	0.00	0.25	0.125	1.00	1.40	29.48	6.30	0.56	4.32	-179.02	-164.75	-171.89
Dk 2	0.25	0.70	0.475	4.25	26.33	28.94	5.81	0.49	3.43	-173.58	-178.92	-176.25	-180.63
Dk 3	0.70	0.85	0.775	7.04		29.19	7.57	0.43	4.03	-173.29	-176.18	-174.73
Dk4	0.85	1.30	1.075	9.82	25.53	29.63	8.00	0.40	3.52	-173.39	-171.08	-172.23	-178.52
Dk 5	1.30	1.75	1.525	14.00	22.42	29.70	12.84	0.40	4.46	-173.51	-159.91	-166.71	-173.91
Dk6	1.75	2.00	1.875	14.78	21.16	29.82	11.28	0.29	3.51	-165.77	-165.27	-165.52	-170.59
Dk 7	2.00	2.50	2.250	15.62	21.58	29.90	11.37	0.29	3.28	-169.12	-170.06	-169.59	-165.92
Dk 8	2.50	3.00	2.750	16.73	18.76	29.52	12.21	0.25	3.90	-137.69	-151.97	-144.83	-139.69
Dk 9	3.00	3.50	3.250	17.85		29.84	11.49	0.22	3.86	-162.59	-171.08	-166.83
Dk 10	3.50	4.00	3.750	18.96	18.13	29.84	13.70	0.28	4.49	-164.98	-155.01	-160.00	-182.38
Dk 11	4.00	4.50	4.250	20.08	18.59	29.72	9.92	0.26	3.03	-167.23	-163.62	-165.43	-172.51
Dk 12	4.50	5.00	4.750	21.19	20.28	29.64	10.49	0.20	3.74	-166.63	-167.12	-166.88	-168.92
Dk 13	5.00	5.50	5.250	22.31	22.43	29.84	9.93	0.24	3.54	-159.45	-159.39	-159.42	-168.07
Dk 14	5.50	6.00	5.750	23.42	19.53	29.81	11.21	0.16	3.22	-188.60	-191.79	-190.19	-183.34
Dk 15	6.00	6.50	6.250	24.54	19.33	29.91	13.07	0.22	4.60	-172.51	-172.31	-172.41	-177.10
Dk16	6.50	7.00	6.750	25.65	21.49	29.81	9.59	0.20	3.71	-186.30	-173.61	-179.96	-183.31
Dk 17	7.00	7.50	7.250	26.77	21.07	29.73	7.12	0.26	3.27	-157.10	-163.37	-160.23	-168.57
Dk 18	7.50	8.00	7.750	27.88	18.80	29.58	8.09	0.26	3.46	-169.49	-169.88	-169.69	-170.99
Dk 19	8.00	8.50	8.250	29.00	20.54	29.64	11.73	0.21	3.52	-175.07	-171.71	-173.39	-168.29
Dk 20	8.50	9.00	8.750	32.50	22.29	30.04	11.13	0.28	4.99	-156.37	-166.49	-161.43	-171.01
Dk 21	9.00	9.50	9.250	36.00		30.07	12.49	0.22	3.61	-168.77	-169.42	-169.10
Dk 22	9.50	10.00	9.750	39.50	20.98	29.78	9.52	0.23	3.50	-172.65	-168.67	-170.66	-170.53
Dk 23	10.00	10.50	10.250	43.00	19.65	30.28	11.18	0.20	3.32	-158.84	-166.80	-162.82	-173.36
Dk24	10.50	11.00	10.750	46.50	19.47	29.90	12.94	0.21	3.32	-165.93	-165.39	-165.66	-164.52
Dk 25	11.00	11.50	11.250	50.00	16.73	30.07	14.04	0.32	4.41	-178.37	-175.10	-176.73	-185.04
Dk 26	11.50	12.00	11.750	53.50	18.09	30.21	13.84	0.20	3.32	-184.09	-185.54	-184.81	-180.74
Dk 27	12.00	12.50	12.250	57.00	15.37	30.30	12.75	0.20	2.82	-183.23	-191.77	-187.50	-176.75
Dk 28	12.50	13.00	12.750	58.05	20.33	30.30	12.75	0.21	3.21	-178.86	-186.35	-182.61	-180.61
Dk 29	13.00	13.50	13.250	59.11	22.05	29.65	8.79	0.28	3.60	-185.03	-177.55	-181.29	-178.50
Dk 31	14.00	14.50	14.250	61.21	26.48	30.06	17.43	0.24	3.27	-164.05	-168.72	-166.38	-164.26
Dk32	14.50	15.00	14.750	62.26	18.63	29.84	22.92	0.16	3.81	-166.00	-150.48	-158.24	-148.96
Dk33	15.00	15.50	15.250	63.32	17.88	30.67	22.14	0.24	3.17	-170.50	-164.82	-167.66	-169.76
Dk 34	15.50	16.00	15.750	64.37	17.44	30.13	17.12	0.30	4.63	-168.65	-166.71	-167.68	-183.44
Dk 35	16.00	16.50	16.250	65.42		29.82	21.14	0.20	3.59	-165.29	-168.52	-166.91
Dk 36	16.50	17.00	16.750	66.47	15.48	29.76	18.16	0.19	3.40	-166.91	-178.64	-172.78	-171.47
Dk 37	17.00	17.50	17.250	67.53	14.77	29.81	15.64	0.20	3.53	-169.28	-177.37	-173.32	-165.08
Dk 38	17.50	18.00	17.750	68.58	12.84	29.77	15.29	0.20	3.45	-161.55	-163.32	-162.44	-159.59
Dk 39	18.00	18.70	18.350	69.84	9.26	29.65	14.55	0.17	3.21	-159.45	-155.73	-157.59	-150.32
Dk 40	18.70	19.10	18.900	71.00	8.61	29.83	11.37	0.24	3.86	-163.66	-168.49	-166.08	-171.80
Dk 41	19.10	19.45	19.275	75.04		30.01	12.35	0.26	2.98	-170.15	-180.33	-175.24
Dk 42	19.45	19.97	19.710	79.74	10.87	29.75	11.23	0.36	3.08	-178.04	-185.78	-181.91	-176.72
Dk 43	19.97	20.37	20.170	84.70	26.53	29.83	10.44	0.22	2.89	-171.12	-183.12	-177.12	-161.32
Dk 44	20.37	20.95	20.660	89.98		29.65	9.23	0.24	3.03	-161.53	-168.15	-164.84
Dk 45	20.95	21.31	21.130	95.05	18.58	29.71	9.69	0.25	3.78	-150.23	-154.36	-152.29	-154.05
Dk 46	21.31	21.52	21.415	98.13	11.74	29.44	7.79	0.31	3.00	-148.47	-157.47	-152.97
Dk 47	21.52	21.85	21.685	101.04	11.21	29.54	7.55	0.32	2.80	-152.06	-167.23	-159.65	-139.54
Dk 48	21.85	22.15	22.000	104.44		29.90	7.24	0.32	2.45	-171.13	-182.03	-176.58
Dk 49	22.15	22.57	22.360	108.32	5.05	29.67	10.34	0.45	2.65	-171.05	-184.14	-177.59	-165.97
Dk 50	22.57	22.66	22.615	111.07	51.65	29.47	8.79	0.31	5.44	-152.87	-159.77	-156.32	-170.61
Dk 51	22.66	23.10	22.880	113.93		29.40	6.30	0.31	3.18	-144.89	-147.68	-146.29
Dk 52	23.10	23.28	23.190	117.27		28.84	7.43	0.30	2.93	-156.79	-162.72	-159.76	-163.89
Dk 53	23.28	23.68	23.480	120.40		29.81	7.51	0.42	2.53	-154.02	-159.13	-156.58
Dk 54	23.68	23.94	23.810	123.96	1.39	28.90	10.20	0.33	2.70	-165.68	-172.97	-169.33	-171.88
Dk 55	23.94	24.20	24.070	126.76	3.48	29.14	9.83	0.55	2.53	-160.28	-175.60	-167.94	-164.95
Dk 56	24.20	24.54	24.370	130.00	2.68	29.72	9.43	0.37	2.73	-151.77	-164.13	-157.95	-180.74
Dk 57	24.54	24.70	24.620	130.81	31.18	29.64	11.82	0.38	2.62	-148.94	-161.89	-155.41	-165.28
Dk 58	24.70	25.00	24.850	131.55	26.46	29.99	12.27	0.39	2.44	-152.29	-172.77	-162.53	-164.42
Dk 59	25.00	25.40	25.200	132.68	26.02	29.42	16.61	0.48	2.52	-173.30	-177.93	-175.61	-159.16
Dk 60	25.40	25.97	25.685	134.25	20.81	29.85	11.92	0.33	3.05	-146.61	-159.07	-152.84	-165.23
Dk 61	25.97	26.47	26.220	135.98	22.98	29.28	15.28	0.39	2.71	-166.42	-169.72	-168.07	-155.26
Dk 62	26.47	26.94	26.705	137.55		29.91	14.58	0.34	2.74	-168.76	-169.12	-168.94
Dk 63	26.94	27.20	27.070	138.73	18.77	29.28	15.28	0.34	2.71	-170.00	-172.78	-171.39	-140.46
Dk 64	27.20	27.63	27.415	139.85	19.18	29.26	17.24	0.37	2.75	-172.46	-178.45	-175.45	-148.97
Dk 65	27.63	28.25	27.940	141.55	18.44	29.88	19.70	0.34	2.78	-172.30	-176.16	-174.23	-159.37
Dk 66	28.25	28.85	28.550	143.52	17.84	29.88	19.70	0.27	2.69	-164.19	-176.50	-170.35	-173.95
Dk 67	28.85	29.38	29.115	145.35	20.42	29.53	17.88	0.14	2.92	-188.28	-193.01	-190.65	-192.41
Dk 68	29.38	30.93	30.155	148.71	22.59	29.80	14.89	0.23	3.02	-182.14	-198.20	-190.17	-180.89
Dk 69	30.93	31.40	31.165	151.98	20.94	29.87	14.32	0.30	3.03	-182.23	-186.68	-184.46	-183.12
Dk 70	31.40	32.10	31.750	153.87	21.83	29.21	10.30	0.32	3.35				-180.43
Dk 71	32.10	32.68	32.390	155.94	21.53	29.79	12.99	0.26	2.75	-191.46	-195.20	-193.33	-177.96
Dk 72	32.68	33.19	32.935	157.70	20.35	29.95	14.08	0.20	2.91	-191.86	-199.95	-195.90	-185.42
Dk 73	33.19	33.67	33.430	159.30	21.28	29.82	12.86	0.24	2.86	-183.47	-200.37	-191.92	-180.13
Dk 74	33.67	34.17	33.920	160.89	20.48	29.79	15.19	0.22	3.25	-182.83	-188.91	-185.87	-181.69
Dk 75	34.17	34.73	34.450	162.60	21.11	29.40	13.22	0.27	2.84	-158.85	-163.20	-161.03	-180.90
Dk 76	34.73	35.45	35.090	164.67	18.39	29.61	12.64	0.20	2.83	-165.16	-178.72	-171.94	-163.95
Dk 77	35.45	36.10	35.775	166.89	16.59	29.60	16.84	0.23	2.64	-178.29	-179.34	-178.81	-165.15
Dk 78	36.10	36.60	36.350	168.75	18.51	29.62	16.45	0.30	2.97	-161.07	-167.84	-164.46	-165.71
Dk 79	36.60	37.28	36.940	170.66	16.12	29.72	19.55	0.26	3.16	-176.08	-176.42	-176.25	-164.04
Dk 80	37.28	37.65	37.465	172.35	18.03	29.74	18.29	0.24	3.09	-166.39	-165.53	-165.96	-158.81
Dk 81	37.65	37.95	37.800	173.44	17.78	29.65	17.89	0.29	3.18	-182.65	-177.09	-179.87	-171.90
Dk 82	37.95	38.67	38.310	175.09	13.83	29.62	16.31	0.21	2.88	-177.01	-178.55	-177.78	-175.54
Dk 83	38.67	39.15	38.910	177.03	14.15	29.78	14.18	0.24	2.92	-186.54	-182.96	-184.75	-184.87
Dk 84	39.15	39.90	39.525	179.02	18.38	29.12	10.28	0.28	2.88	-194.73	-203.56	-199.14	-199.31
Dk 85	39.90	40.47	40.185	181.15	24.33	29.79	13.25	0.25	3.15	-185.48	-212.28	-198.88	-213.02
Dk 86	40.47	41.01	40.740	182.95	19.89	29.49	14.80	0.20	2.77	-183.67	-196.39	-190.03	-204.89
Dk 87	41.01	41.70	41.355	184.94	19.13	30.27	16.53	0.17	2.89	-168.92	-186.38	-177.65	-183.93
Dk 88	41.70	42.46	42.080	187.28	15.91	29.90	15.79	0.15	2.98	-160.95	-175.59	-168.27	-175.67
Dk 89	42.46	42.76	42.610	188.99	16.32	29.91	15.89	0.24	2.98	-161.12	-164.27	-162.70	-164.12
Dk 90	42.76	42.98	42.870	189.84	13.60	29.88	16.78	0.18	2.97	-147.93	-158.08	-153.01	-159.25
Dk 91	42.98	43.13	43.055	190.43	9.48	29.67	14.19	0.20	2.99	-153.78	-155.32	-154.55	-158.08
Dk 92	43.13	43.33	43.230	191.00	11.98	29.79	14.02	0.22	2.98	-152.89	-157.43	-155.16	-166.26
Dk 93	43.33	43.66	43.495	193.11	4.47	29.64	14.59	0.27	2.71	-147.28	-154.37	-150.82	-162.39
Dk 94	43.66	43.86	43.760	195.22	3.38	29.62	14.31	0.20	2.82	-156.40	-166.42	-161.41	-173.49
Dk 95	43.86	44.45	44.155	198.36	7.67	29.42	8.60	0.19	2.58	-169.86	-177.15	-173.50	-185.42
Dk 96	44.45	44.85	44.650	202.30	13.64	29.58	7.17	0.22	2.37	-153.76	-162.62	-158.19	-183.01
Dk 97	44.85	45.23	45.040	205.40	8.50	29.57	10.41	0.27	2.79	-151.32	-154.99	-153.16	-169.73
Dk 98	45.23	45.66	45.445	208.63	20.62			0.28	3.14				-165.17
Dk 99	45.66	45.96	45.810	211.53	8.33	28.99	6.86	0.33	2.70	-164.07	-172.09	-168.08	-164.60
Dk 100	45.96	46.40	46.180	214.47	7.12	28.95	7.93	0.30	2.71	-164.99	-179.18	-172.09	-174.91
Dk 101	46.40	46.90	46.650	218.21	28.32	29.47	11.53	0.20	2.83	-167.39	-194.35	-180.87	-190.62
Dk 102	46.90	47.25	47.075	221.60	18.13	29.62	13.89	0.15	2.64	-163.92	-180.60	-172.26	-174.65
Dk 103	47.25	47.57	47.410	224.26	22.57	29.94	18.39	0.20	2.72	-158.45	-162.53	-160.49	-168.27
Dk 104	47.57	47.80	47.685	226.45	21.05	30.02	17.78	0.17	2.63	-163.45	-162.27	-162.86	-165.33
Dk 105	47.80	48.13	47.965	228.68	10.80	29.78	12.87	0.17	2.86	-156.61	-161.61	-159.11	-150.36
Dk 106	48.13	48.23	48.180	230.39	6.10	29.88	16.55	0.19	3.00	-149.70	-153.29	-151.50	-158.27
Dk 107	48.23	48.60	48.415	232.26	8.82	30.04	23.31			-152.58	-154.29	-153.43
Dk 108	48.60	49.12	48.860	235.80	2.91	29.32	10.10	0.27	2.56	-145.98	-163.48	-154.73	-153.05
Dk 109	49.12	49.65	49.385	239.98	1.04	29.85	9.90	0.26	2.52	-155.87	-172.60	-164.24	-170.44
Dk 110	49.65	49.88	49.765	243.00	2.67	29.34	12.43	0.24	2.69	-160.08	-179.19	-169.63	-173.99
Dk 111	49.88	50.25	50.065	244.00	30.93	29.62	14.50	0.19	2.96	-159.53	-174.12	-166.82	-172.90
Dk 112	50.25	50.70	50.475	245.37	23.27	30.07	16.25	0.18	2.66	-149.08	-157.21	-153.14	-173.47