Citation:

PANGAEA.957457

Name: Robertson Speleothem U-Th dating results for samples analyzed at the Geological Survey of Israel (Dataset S1)
Published: 2023-04-21
License: https://creativecommons.org/licenses/by/4.0/
Keywords: d13C; d18O; South Africa; Stable carbon and oxygen isotopes; U-series dating; U-Th dating

Always quote citation above when using data! You can download the citation in several formats below.

Published: 2023-04-21 • DOI registered: 2023-05-20

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Keyword(s):

d13C; d18O; South Africa; Stable carbon and oxygen isotopes; U-series dating; U-Th dating

Related to:

Braun, Kerstin; Cowling, Richard; Bar-Matthews, Miryam; Matthews, Alan; Ayalon, Avner; Zilberman, Tami; Difford, Mark; Edwards, R Lawrence; Li, Xianglei; Marean, Curtis W (2023): Climatic stability recorded in speleothems may contribute to higher biodiversity in the Cape Floristic Region. Journal of Biogeography, jbi.14592, https://doi.org/10.1111/jbi.14592

Funding:

European Commission (EC), grant/award no. 238512 : GATEWAYS

John Templeton Foundation, grant/award no. 48952

National Science Foundation (NSF), grant/award no. 2002474: National Science Foundation Grant

National Science Foundation (NSF), grant/award no. 2002486: National Science Foundation Grant

National Science Foundation (NSF), grant/award no. BCS-0524087: National Science Foundation Grant

National Science Foundation (NSF), grant/award no. BCS-1138073: National Science Foundation Grant

Coverage:

Latitude: -33.730000 * Longitude: 19.770000

Minimum DISTANCE: 0.10 cm * Maximum DISTANCE: 38.90 cm

Event(s):

CLC1_138857 (stalagmite 138857) * Latitude: -33.730000 * Longitude: 19.770000 * Elevation: 410.0 m * Location: Cape Limeworks Cave 1, Robertson, Western Cape, South Africa * Method/Device: Speleothem sample (SPS)

CLC1_138858 (stalagmite 138858) * Latitude: -33.730000 * Longitude: 19.770000 * Elevation: 410.0 m * Location: Cape Limeworks Cave 1, Robertson, Western Cape, South Africa * Method/Device: Speleothem sample (SPS)

CLC1_142835 (stalagmite 142835) * Latitude: -33.730000 * Longitude: 19.770000 * Elevation: 410.0 m * Location: Cape Limeworks Cave 1, Robertson, Western Cape, South Africa * Method/Device: Speleothem sample (SPS)

Comment:

U decay constants: λ238=1.55125x10-10 (Jaffey et al., 1971) and λ234= 2.82x10-6 (Cheng et al., 2013).

Th decay constant: λ230=9.1705x10-6 (Cheng et al., 2013).

Corrected 230Th ages assume the initial 230Th/232Th atomic ratio of 4.4 ± 2.2 x10-6 for material in secular equilibrium with bulk earth 232Th/238U value of 3.8.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Braun, Kerstin
2	Sample code/label	Sample label		Braun, Kerstin
3	DISTANCE	Distance	cm	Braun, Kerstin		Geocode
4	Mass	Mass	mg	Braun, Kerstin		weight
5	Uranium-238	238U	µg/kg	Braun, Kerstin		original given in ppb
6	Uranium-238, standard deviation	238U std dev	±	Braun, Kerstin
7	Thorium-230	230Th	ng/kg	Braun, Kerstin		original given in ppt
8	Thorium-230, standard deviation	230Th std dev	±	Braun, Kerstin
9	Thorium-232	232Th	ng/kg	Braun, Kerstin
10	Thorium-232, standard deviation	232Th std dev	±	Braun, Kerstin
11	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Braun, Kerstin
12	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Braun, Kerstin
13	Thorium-230/Thorium-232 activity ratio	(230Th/232Th)		Braun, Kerstin
14	Thorium-230/Thorium-232 activity ratio, standard deviation	(230Th/232Th) std dev	±	Braun, Kerstin
15	Thorium-230/Uranium-238 activity ratio	(230Th/238U)		Braun, Kerstin
16	Thorium-230/Uranium-238 activity ratio, standard deviation	(230Th/238U) std dev	±	Braun, Kerstin
17	Age, dated	Age dated	ka	Braun, Kerstin		before 1950
18	Age, comment	Comm		Braun, Kerstin
19	Age, dated, standard deviation	Age dated std dev	±	Braun, Kerstin
20	Age, dated	Age dated	ka	Braun, Kerstin	Age, 230Thorium, corrected	before 1950

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

1168 data points

Data

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

1 Event	2 Sample label	3 Distance [cm]	4 Mass [mg] (weight)	5 238U [µg/kg] (original given in ppb)	6 238U std dev [±]	7 230Th [ng/kg] (original given in ppt)	8 230Th std dev [±]	9 232Th [ng/kg]	10 232Th std dev [±]	11 (234U/238U)	12 (234U/238U) std dev [±]	13 (230Th/232Th)	14 (230Th/232Th) std dev [±]	15 (230Th/238U)	16 (230Th/238U) std dev [±]	17 Age dated [ka] (before 1950)	18 Comm	19 Age dated std dev [±]	20 Age dated [ka] (before 1950)
CLC1_138857	138857-A1	1.00	186	134	0.06	6.5	0.03	2811.1	6.233	2.8	0.0055	434	2.2	3.0	0.014	254.967		7.420	254.584
CLC1_138857	138857-A2	4.00	193	115	0.07	6.2	0.03	490.3	1.101	3.1	0.0046	2393	11.1	3.3	0.014	253.630		6.141	253.358
CLC1_138857	138857-A3	6.50	219	112	0.05	6.2	0.02	1020.1	3.631	3.1	0.0036	1148	6.0	3.4	0.013	270.815		6.523	270.447
CLC1_138857	138857-A3a	6.50	265	128	0.11	6.4	0.10	794.1	5.310	2.9	0.0036	1510	26.1	3.1	0.049	245.101		21.827	244.829
CLC1_138857	138857-A3b	6.50	228	109	0.12	5.8	0.14	968.4	6.148	3.0	0.0039	1126	27.7	3.3	0.078	260.899		38.060	260.570
CLC1_138857	138857-A4	9.50	198	111	0.04	6.5	0.04	954.8	2.770	3.2	0.0031	1281	8.0	3.6	0.020	270.425		8.931	270.066
CLC1_138857	138857-B1	12.20	199	92	0.06	5.7	0.03	827.2	1.972	3.5	0.0039	1291	7.8	3.8	0.021	260.069		8.248	259.756
CLC1_138857	138857-B1a	12.20	283	90	0.06	5.4	0.05	1083.4	3.368	3.3	0.0061	941	9.5	3.7	0.036	268.828		16.410	268.463
CLC1_138857	138857-B2	14.30	204	81	0.01	5.3	0.02	358.0	1.639	3.6	0.0048	2784	17.5	4.0	0.017	262.355		6.755	262.059
CLC1_138857	138857-B3	17.30	205	81	0.05	5.8	0.04	1336.0	6.822	3.9	0.0068	809	6.9	4.3	0.030	274.230		12.070	273.756
CLC1_138857	138857-C1	20.20	198	103	0.06	6.5	0.03	1256.4	2.388	3.4	0.0043	965	4.3	3.8	0.015	281.614		7.342	281.192
CLC1_138857	138857-C2	22.40	213	100	0.04	6.2	0.03	2415.1	5.172	3.4	0.0048	486	2.8	3.8	0.021	298.687		11.693	298.121
CLC1_138857	138857-C3	25.30	176	96	0.10	6.2	0.03	882.1	4.098	3.5	0.0043	1328	8.5	4.0	0.018	297.172		9.002	296.417
CLC1_138857	138857-C4	27.10	212	92	0.06	6.3	0.03	1121.6	3.090	3.6	0.0041	1046	5.3	4.2	0.018	310.857		9.631	310.018
CLC1_138857	138857-D1	28.50	200	115	0.06	6.3	0.06	2785.6	14.873	2.8	0.0040	422	4.4	3.3	0.030	359.143		31.453	357.848
CLC1_138857	138857-D2	30.20	202	105	0.05	5.7	0.02	775.1	1.681	2.8	0.0028	1381	5.8	3.3	0.012	384.292		14.825	382.730
CLC1_138857	138857-D3	32.50	207	109	0.06	4.7	0.02	748.4	1.942	2.3	0.0024	1192	5.1	2.7	0.009	408.472		17.689	406.655
CLC1_138857	138857-E1	34.10	168	134	0.11	5.5	0.02	870.0	2.959	2.1	0.0027	1186	6.1	2.5	0.010	483.327		40.558	480.200
CLC1_138857	138857-E2	36.00	159	121	0.06	5.0	0.02	1509.9	6.247	2.1	0.0040	621	3.6	2.5	0.010	524.339		56.389	520.125
CLC1_138857	138857-E3	38.90	198	136	0.11	5.5	0.02	1942.1	4.234	2.2	0.0033	531	2.4	2.5	0.010	319.144		11.100	318.130
CLC1_138858	138858-A	0.65	213	116	0.06	5.1	0.03	2070.0	8.000	2.6	0.0032	460	3.6	2.7	0.018	232.421		8.303	231.857
CLC1_138858	138858-A1	1.60	368	85	0.04	4.1	0.02	1149.0	3.000	2.7	0.0028	666	3.0	3.0	0.012	279.451		7.293	278.724
CLC1_138858	138858-B	6.35	201	102	0.09	2.3	0.01	2831.0	6.000	1.4	0.0044	155	0.8	1.4	0.007	319.280		21.450	317.757
CLC1_138858	138858-B1	5.05	379	37	0.02	1.0	0.00	358.0	0.000	1.4	0.0024	507	1.7	1.6	0.005		Equilibrium
CLC1_138858	138858-C	2.30	198	128	0.07	3.9	0.03	305.0	3.000	1.6	0.0028	2384	28.2	1.9	0.013	465.819		75.817	462.705
CLC1_138858	138858-C1	4.40	254	110	0.06	3.5	0.01	1539.0	2.000	1.7	0.0024	430	1.2	2.0	0.005	490.037		29.002	486.342
CLC1_142835	142835-A	15.20	390	82	0.06	1.9	0.01	889.0	1.000	1.3	0.0015	411	1.8	1.5	0.006	487.008		63.307	484.835
CLC1_142835	142835-B1	14.00	327	103	0.04	3.2	0.01	528.0	1.000	1.7	0.0013	1142	3.8	1.9	0.005	376.293		11.883	374.697
CLC1_142835	142835-B2	13.00	312	125	0.07	3.7	0.01	590.0	1.000	1.6	0.0024	1181	3.9	1.8	0.005	372.084		13.356	370.513
CLC1_142835	142835-B3	12.40	313	97	0.05	3.4	0.01	1471.0	2.000	2.0	0.0022	429	1.2	2.1	0.005	291.682		5.835	290.753
CLC1_142835	142835-C1	11.90	310	97	0.04	3.7	0.01	471.0	1.000	2.2	0.0017	1477	4.6	2.3	0.006	280.451		5.610	279.737
CLC1_142835	142835-C2	9.50	316	82	0.04	3.2	0.01	463.0	1.000	2.2	0.0017	1278	5.2	2.4	0.008	278.935		6.292	278.611
CLC1_142835	142835-C3	7.90	84	80	0.20	3.0	0.01	682.0	1.000	2.2	0.0057	828	3.5	2.3	0.011	265.541		8.144	264.870
CLC1_142835	142835-C4	6.40	229	84	0.05	3.1	0.01	496.0	1.000	2.2	0.0023	1192	4.3	2.3	0.008	266.905		5.735	266.218
CLC1_142835	142835-C5	5.20	250	98	0.06	3.7	0.01	293.0	1.000	2.2	0.0026	2398	9.7	2.3	0.006	275.112		5.790	274.433
CLC1_142835	142835-C6	3.90	233	104	0.07	3.8	0.01	363.0	1.000	2.1	0.0020	1943	6.8	2.2	0.007	267.244		5.583	266.597
CLC1_142835	142835-C7	2.50	239	111	0.07	3.6	0.01	290.0	1.000	1.9	0.0017	2345	6.3	2.0	0.004	266.047		3.839	265.406
CLC1_142835	142835-C8	1.70	260	125	0.04	4.0	0.01	743.0	1.000	1.9	0.0026	1017	2.2	2.0	0.004	273.845		4.436	273.125
CLC1_142835	142835-C9	0.50	208	123	0.05	3.9	0.01	1865.0	3.000	1.9	0.0024	389	1.0	1.9	0.004	257.892		4.099	257.155
CLC1_142835	142835-D	0.10	165	75	0.06	1.2	0.01	922.0	2.000	2.7	0.0036	252	1.2	1.0	0.004	47.647		0.520	47.481
CLC1_142839	142839-A	0.30	269	88	0.05	2.8	0.02	533.0	2.000	1.8	0.0039	992	6.8	2.0	0.012	324.698		19.434	323.628
CLC1_142839	142839-A1	1.50	220	98	0.07	3.1	0.01	5785.0	1.000	1.7	0.0018	100	0.4	1.9	0.007	425.721		23.300	422.956
CLC1_142839	142839-B	2.40	184	72	0.04	2.1	0.01	396.0	1.000	1.6	0.0018	996	3.5	1.8	0.006	432.804		23.978	430.283
CLC1_142839	142839-C	3.00	199	66	0.04	1.9	0.01	266.0	1.000	1.6	0.0034	1385	6.0	1.8	0.007	458.196		43.386	455.240
CLC1_142839	142839-D	4.00	172	72	0.05	2.1	0.01	466.0	1.000	1.6	0.0029	840	3.6	1.8	0.007	473.027		50.420	469.658
CLC1_142839	142839-E	5.00	156	11	0.00	0.3	0.00	51.0	0.000	1.6	0.0032	1222	5.0	1.8	0.007	476.088		51.162	472.685
CLC1_142839	142839-F	6.40	196	91	0.05	2.7	0.01	485.0	1.000	1.6	0.0018	1035	3.0	1.8	0.004	452.367		22.311	449.470
CLC1_142839	142839-F1	6.95	250	84	0.05	2.5	0.01	401.0	1.000	1.6	0.0018	1155	5.2	1.8	0.007	480.854		47.318	477.325
CLC1_142842	142842-4	0.60	200	133	0.08	6.5	0.02	2101.0	4.000	2.7	0.0037	576	2.3	3.0	0.011	270.919		6.470	270.224
CLC1_142842	142842-9	5.45	196	121	0.07	7.7	0.04	922.0	6.000	3.6	0.0040	1575	13.0	3.9	0.020	262.074		7.714	261.504
CLC1_142842	142842-13	10.00	186	82	0.05	6.0	0.05	1431.0	6.000	3.9	0.0054	792	7.9	4.5	0.041	294.119		18.365	293.366
CLC1_142842	142842-12	10.90	154	114	0.08	7.5	0.12	4109.0	40.000	3.4	0.0044	344	6.5	4.0	0.065	354.434		53.778	353.185
CLC1_142842	142842-3	12.00	214	102	0.08	6.7	0.02	2296.0	4.000	3.5	0.0041	548	2.1	4.0	0.014	308.291		7.727	307.420
CLC1_142842	142842-3b	12.00	202	94	0.10	6.2	0.02	2416.0	6.000	3.5	0.0046	479	1.9	4.0	0.013	304.857		7.207	303.992
CLC1_142842	142842-11	12.70	165	94	0.05	6.4	0.06	1928.0	15.000	3.6	0.0065	622	7.8	4.1	0.041	301.567		21.106	300.747
CLC1_142842	142842-8	12.85	153	84	0.07	5.7	0.05	1097.0	8.000	3.5	0.0028	970	11.5	4.1	0.039	346.500		28.193	345.412
CLC1_142842	142842-7	13.45	22	1158	0.67	56.4	0.50	8994.0	90.000	2.8	0.0022	1177	15.7	3.0	0.026	241.544		11.781	241.029
CLC1_142842	142842-10	14.50	160	125	0.07	6.7	0.08	2651.0	38.000	2.7	0.0031	474	8.9	3.3	0.040	432.143		75.619	430.016
CLC1_142842	142842-10b	14.50	205	110	0.06	5.8	0.04	2671.0	9.000	2.7	0.0036	409	3.3	3.2	0.024	415.716		39.531	413.812
CLC1_142842	142842-2	15.20	206	158	0.11	5.7	0.03	4963.0	14.000	1.9	0.0022	217	1.2	2.2	0.011	450.411		41.377	447.654
CLC1_142842	142842-16	17.80	261	154	0.15	6.4	0.06	1222.0	8.000	2.1	0.0027	983	10.9	2.5	0.023	475.790		83.049	472.874
CLC1_142842	142842-6	20.10	174	165	0.10	6.4	0.07	1018.0	4.000	2.0	0.0022	1178	13.6	2.4	0.026	488.913		127.408	487.089
CLC1_142842	142842-15	22.70	291	153	0.12	6.2	0.04	1262.0	9.000	2.1	0.0026	924	9.0	2.5	0.016	640.806		236.356	630.041
CLC1_142842	142842-14	26.15	287	104	0.07	4.3	0.02	1332.0	3.000	2.1	0.0032	609	3.3	2.6	0.012	492.179		50.226	488.808
CLC1_142842	142842-1	26.85	204	128	0.07	5.1	0.02	4433.0	13.000	2.0	0.0029	216	1.0	2.4	0.008	531.392		53.609	526.885
CLC1_142842	142842-1-b	26.85	242	128	0.15	5.1	0.01	2121.0	6.000	2.0	0.0032	447	1.7	2.4	0.007	513.381		39.797	509.425
CLC1_142842	142842-17	28.40	188	103	0.10	3.8	0.04	2072.0	8.000	1.9	0.0051	345	4.1	2.2	0.025	569.388		320.563	562.518
CLC1_142842	142842-5	28.50	246	126	0.12	4.1	0.02	865.0	3.000	1.8	0.0017	889	6.1	2.0	0.012	363.869		25.023	362.430
CLC1_142842	142842-18	29.20	143	115	0.16	4.1	0.02	2008.0	5.000	1.8	0.0044	388	2.3	2.2	0.012