Citation:

meyniana.1997.49.85

Name: (Table 2) Uranium and thorium isotopic composition, activity ratios and ages of bivalvia shells in sediment core GIK14350, northern Germany
Published: 1997
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

A new chemical procedure for cleaning marine carbonates was applied to remove detritus as well as metaloxide contaminations of marine shells from Eemian deposits and adjoining succession of a sediment core from Dagebüll, Schleswig- Holstein. Hence, one can significantly reduce the contamination with detrital uranium and thorium. Thermal ionisation mass spectrometry was applied to determine the uranium and thorium activities used for 230Th/U dating of these shells. At least ten samples of marine bivalves of five different core sections were analysed. Samples located below a five meter thick clay layer at 19-24 m yielded an average age of 132±18 ka. Shells located above the clays at 15-20 m depth were strongly influenced by percolating groundwaters of an open system. Therefore, a reliable dating of these samples was not possible.

Coverage:

Latitude: 54.700000 * Longitude: 8.753000

Date/Time Start: 1994-09-19T09:15:00 * Date/Time End: 1994-09-19T09:15:00

Minimum DEPTH, sediment/rock: 15.160 m * Maximum DEPTH, sediment/rock: 28.500 m

Event(s):

GIK14350-1 (DA-1) * Latitude: 54.700000 * Longitude: 8.753000 * Date/Time: 1994-09-19T09:15:00 * Elevation: 1.9 m * Penetration: 30.5 m * Recovery: 30.37 m * Location: Hauke-Haien-Koog, Dagebüll, Schleswig-Holstein, Germany * Campaign: * Method/Device: Drilling/drill rig (DRILL) * Comment: Surface silty clay, bottom coarse sand, gravel and cobblesTopographic Map: TK 25 No. 1318/4, Coordinates: R- 3484225 H- 6063290

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Laboratory number	Lab. numb	#	Lomitschka, Michael
2	Sample ID	Sample ID		Lomitschka, Michael
3	DEPTH, sediment/rock	Depth sed	m			Geocode
4	Depth, top/min	Depth top	m	Lomitschka, Michael
5	Depth, bottom/max	Depth bot	m	Lomitschka, Michael
6	Sample mass	Samp m	g	Lomitschka, Michael		Einwaage
7	Sample mass	Samp m	g	Lomitschka, Michael		236U
8	Sample mass	Samp m	g	Lomitschka, Michael		229Th
9	Uranium-234/Uranium-236 ratio	234U/236U		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
10	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	234U/236U
11	Uranium-235/Uranium-236 ratio	235U/236U		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
12	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	235U/236U
13	Uranium-238/Uranium-236 ratio	238U/236U		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
14	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	238U/236U
15	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
16	Error, absolute	Error a	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	234U/238U
17	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Lomitschka, Michael
18	Uranium-234/Uranium-238 activity ratio, error, absolute	(234U/238U) e	±	Lomitschka, Michael
19	Uranium-238	238U	mg/kg	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
20	Error, absolute	Error a	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	238U in mg/kg
21	Uranium-238	238U	dpm/g	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
22	Error, absolute	Error a	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	238U in dpm/g
23	Thorium-229/Thorium-230 ratio	229Th/230Th		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
24	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	229Th/230Th
25	Thorium-229/Thorium-232 ratio	229Th/232Th		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
26	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	229Th/232Th
27	Thorium-230/Thorium-232 ratio	230Th/232Th		Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
28	Error, relative	Error r	%	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	230Th/232Th
29	Thorium-232	232Th	mg/kg	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
30	Thorium-232, standard deviation	232Th std dev	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
31	Thorium-232	232Th	dpm/g	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
32	Error, absolute	Error a	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	232Th in dpm/g
33	Thorium-230	230Th	ng/kg	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
34	Thorium-230, standard deviation	230Th std dev	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
35	Thorium-230	230Th	dpm/g	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)
36	Error, absolute	Error a	±	Lomitschka, Michael	Thermal Ionization Mass Spectrometry (TIMS)	230Th in dpm/g
37	Thorium-230/Uranium-238 activity ratio	(230Th/238U)		Lomitschka, Michael
38	Thorium-230/Uranium-238 activity ratio, error, relative	(230Th/238U) e rel	%	Lomitschka, Michael
39	Age, dated	Age dated	ka	Lomitschka, Michael	Age, 230Th/U Thorium-Uranium	uncorrected
40	Age, dated standard deviation	Age dated std dev	±	Lomitschka, Michael	Age, 230Th/U Thorium-Uranium

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

390 data points

Data

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

1 Lab. numb [#]	2 Sample ID	3 Depth sed [m]	4 Depth top [m]	5 Depth bot [m]	6 Samp m [g] (Einwaage)	7 Samp m [g] (236U)	8 Samp m [g] (229Th)	9 234U/236U (Thermal Ionization Mass Spect...)	10 Error r [%] (234U/236U, Thermal Ionization...)	11 235U/236U (Thermal Ionization Mass Spect...)	12 Error r [%] (235U/236U, Thermal Ionization...)	13 238U/236U (Thermal Ionization Mass Spect...)	14 Error r [%] (238U/236U, Thermal Ionization...)	15 (234U/238U) (Thermal Ionization Mass Spect...)	16 Error a [±] (234U/238U, Thermal Ionization...)	17 (234U/238U)	18 (234U/238U) e [±]	19 238U [mg/kg] (Thermal Ionization Mass Spect...)	20 Error a [±] (238U in mg/kg, Thermal Ioniza...)	21 238U [dpm/g] (Thermal Ionization Mass Spect...)	22 Error a [±] (238U in dpm/g, Thermal Ioniza...)	23 229Th/230Th (Thermal Ionization Mass Spect...)	24 Error r [%] (229Th/230Th, Thermal Ionizati...)	25 229Th/232Th (Thermal Ionization Mass Spect...)	26 Error r [%] (229Th/232Th, Thermal Ionizati...)	27 230Th/232Th (Thermal Ionization Mass Spect...)	28 Error r [%] (230Th/232Th, Thermal Ionizati...)	29 232Th [mg/kg] (Thermal Ionization Mass Spect...)	30 232Th std dev [±] (Thermal Ionization Mass Spect...)	31 232Th [dpm/g] (Thermal Ionization Mass Spect...)	32 Error a [±] (232Th in dpm/g, Thermal Ioniz...)	33 230Th [ng/kg] (Thermal Ionization Mass Spect...)	34 230Th std dev [±] (Thermal Ionization Mass Spect...)	35 230Th [dpm/g] (Thermal Ionization Mass Spect...)	36 Error a [±] (230Th in dpm/g, Thermal Ioniz...)	37 (230Th/238U)	38 (230Th/238U) e rel [%]	39 Age dated [ka] (uncorrected, Age, 230Th/U Tho...)	40 Age dated std dev [±] (Age, 230Th/U Thorium-Uranium)
170	D15-16	15.500	15.00	16.00	2.50958	1.04890	1.03180	0.104	0.40	10.25	0.15	1399	0.15	7.214E-5	3.10E-7	1.318	0.006	0.2680	0.0004	0.1999	0.0003	21.30	0.69	0.00156	0.56	0.00007	0.29	0.03838	0.00021	0.00937	0.00005	2.79	0.02	0.1277	0.001	0.639	0.005	70	1
201	D19-20	19.500	19.00	20.00	1.71960	1.04220	1.02935	0.130	1.00	13.15	0.49	1799	0.49	7.059E-5	7.90E-7	1.290	0.014	0.4998	0.0024	0.3729	0.0018	11.44	0.75	0.00050	0.83	0.00004	1.10	0.17582	0.00146	0.04293	0.00036	7.56	0.06	0.3463	0.003	0.929	0.008	129	5
202	D25-26	25.500	25.00	26.00	2.22911	1.04080	1.03075	0.087	0.56	9.92	0.20	1353	0.20	6.203E-5	3.70E-7	1.134	0.007	0.2897	0.0006	0.2161	0.0004	17.40	0.93	0.00569	0.35	0.00032	0.76	0.01184	0.00004	0.00289	0.00001	3.84	0.04	0.1758	0.002	0.813	0.008	132	4
171	D28-29	28.500	28.00	29.00	1.81746	1.03848	1.03408	0.042	0.74	4.37	0.19	588	0.19	6.671E-5	5.10E-7	1.219	0.009	0.1540	0.0003	0.1149	0.0002	37.33	1.03	0.01575	0.34	0.00042	0.91	0.00527	0.00002	0.00129	0.00000	2.20	0.02	0.1008	0.001	0.877	0.009	131	5
203	D15	15.160	15.15	15.17	0.48574	1.03928	1.00150	0.025	0.40	2.25	0.10	296	0.10	7.526E-5	3.10E-7	1.375	0.006	0.2899	0.0003	0.2163	0.0002	79.34	2.00	0.00448	0.88	0.00006	2.20	0.06715	0.00059	0.01640	0.00014	3.76	0.08	0.1719	0.003	0.795	0.016	90	3
204	D15	15.185	15.17	15.20	0.38575	1.04590	1.05692	0.025	0.74	2.23	0.15	293	0.15	7.471E-5	5.60E-7	1.365	0.010	0.3644	0.0005	0.2719	0.0004	56.27	2.80	0.00231	0.78	0.00004	2.90	0.17328	0.00135	0.04231	0.00033	7.04	0.20	0.3221	0.009	1.185	0.033	186	16
205	D18	18.140	18.10	18.18	0.54035	1.01469	1.03350	0.045	4.90	4.68	1.20	631	1.20	6.573E-5	3.32E-6	1.201	0.061	0.5432	0.0065	0.4053	0.0049	41.79	4.30	0.00196	1.10	0.00005	3.80	0.14247	0.00157	0.03479	0.00038	6.61	0.28	0.3028	0.013	0.747	0.033	102	17
206	D25	25.105	25.06	25.15	1.06746	1.04782	1.00208	0.043	0.63	4.66	0.18	629	0.18	6.304E-5	4.10E-7	1.152	0.008	0.2829	0.0005	0.2111	0.0004	34.85	2.40	0.00991	0.63	0.00027	2.60	0.01381	0.00009	0.00337	0.00002	3.89	0.09	0.1782	0.004	0.844	0.020	137	8
208	D28I	28.050	28.00	28.10	0.63329	1.04910	1.03450	0.036	1.20	3.75	0.38	503	0.38	6.460E-5	8.10E-7	1.180	0.015	0.3819	0.0015	0.2849	0.0011	46.94	2.50	0.00233	0.73	0.00005	2.50	0.10222	0.00075	0.02496	0.00018	5.03	0.13	0.2302	0.006	0.808	0.020	120	8
209	D28II	28.050	28.00	28.10	1.52882	1.00490	0.97990	0.151	0.22	16.45	0.08	2254	0.08	6.552E-5	1.50E-7	1.197	0.003	0.6793	0.0005	0.5068	0.0004	9.35	0.44	0.00040	0.93	0.00004	1.00	0.23519	0.00219	0.05743	0.00053	9.90	0.04	0.4532	0.002	0.894	0.004	141	2