Citation:

PANGAEA.763392

Name: Concentrations of Uranium and Thorium isotopes, IODP Expedition 325
Creator: Expedition 325 Scientists
Published: 2011-07-25
License: https://creativecommons.org/licenses/by/3.0/

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Related to:

Webster, Jody M; Yokoyama, Yusuke; Cotterill, Carol; Expedition 325 Scientists (2011): Proceedings of the Integrated Ocean Drilling Program. Tokyo (Integrated Ocean Drilling Program Management International, Inc.), 325, https://doi.org/10.2204/iodp.proc.325.2011

Project(s):

Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)

Coverage:

Median Latitude: -18.812474 * Median Longitude: 149.104482 * South-bound Latitude: -19.843980 * West-bound Longitude: 145.823690 * North-bound Latitude: -15.472370 * East-bound Longitude: 150.481410

Date/Time Start: 2010-02-14T08:30:00 * Date/Time End: 2010-04-03T02:05:00

Minimum DEPTH, sediment/rock: 9.94 m * Maximum DEPTH, sediment/rock: 38.04 m

Event(s):

325-M0031A (HYD_01Csite6) * Latitude: -19.678950 * Longitude: 150.239610 * Date/Time: 2010-02-14T08:30:00 * Elevation Start: -92.0 m * Elevation End: -90.1 m * Penetration: 43 m * Recovery: 5.68 m * Location: Great Barrier Reef, Australia * Campaign: (Great Barrier Reef Environmental Changes) * Basis: Greatship Maya * Method/Device: Drilling/drill rig (DRILL) * Comment: Drilling Depth Methods: DSF: tag sea floor; CSF: let overlap if long; CCSF: let overlap if long. Elevation Start = drill string tagging seabed including predicted tidal variations, Elevation End = corrected EM300 echo sounder data.

325-M0032A (HYD_01Csite6) * Latitude: -19.678830 * Longitude: 150.239660 * Date/Time: 2010-02-16T10:50:00 * Elevation Start: -93.0 m * Elevation End: -91.9 m * Penetration: 36.7 m * Recovery: 5.99 m * Location: Great Barrier Reef, Australia * Campaign: (Great Barrier Reef Environmental Changes) * Basis: Greatship Maya * Method/Device: Drilling/drill rig (DRILL) * Comment: Drilling Depth Methods: DSF: tag sea floor; CSF: let overlap if long; CCSF: let overlap if long. Elevation Start = drill string tagging seabed including predicted tidal variations, Elevation End = corrected EM300 echo sounder data.

325-M0033A (HYD_01CSite6) * Latitude: -19.678830 * Longitude: 150.239850 * Date/Time: 2010-02-17T14:45:00 * Elevation Start: -91.5 m * Elevation End: -91.3 m * Penetration: 32.8 m * Recovery: 13.41 m * Location: Great Barrier Reef, Australia * Campaign: (Great Barrier Reef Environmental Changes) * Basis: Greatship Maya * Method/Device: Drilling/drill rig (DRILL) * Comment: Drilling Depth Methods: DSF: tag sea floor; CSF: let overlap if long; CCSF: let overlap if long. Elevation Start = drill string tagging seabed including predicted tidal variations, Elevation End = corrected EM300 echo sounder data.

Comment:

Notes: Uncertainties of concentrations include all weighing errors; isotope ratios are independent of weighing uncertainties. All isotope ratios are expressed as acivities and are calculated using the decay constants of Cheng et al. (2000), Holden (1990), and Jaffey et al. (1971). Depth = top of sample interval

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	DEPTH, sediment/rock	Depth sed	m			Geocode
3	Sample code/label	Sample label		Expedition 325 Scientists
4	Uranium-238	238U	mg/kg	Expedition 325 Scientists	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
5	Uranium-238, standard deviation	238U std dev	±	Expedition 325 Scientists
6	Thorium-232	232Th	µg/kg	Expedition 325 Scientists	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
7	Thorium-232, standard deviation	232Th std dev	±	Expedition 325 Scientists
8	Thorium-232/Uranium-238 activity ratio	(232Th/238U)		Expedition 325 Scientists	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
9	Thorium-232/Uranium-238 activity ratio, standard deviation	(232Th/238U) std dev	±	Expedition 325 Scientists
10	Thorium-230/Uranium-238 activity ratio	(230Th/238U)		Expedition 325 Scientists	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
11	Thorium-230/Uranium-238 activity ratio, standard deviation	(230Th/238U) std dev	±	Expedition 325 Scientists
12	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Expedition 325 Scientists	Multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS)
13	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Expedition 325 Scientists

License:

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

Size:

220 data points

Data

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

1 Event	2 Depth sed [m]	3 Sample label	4 238U [mg/kg]	5 238U std dev [±]	6 232Th [µg/kg]	7 232Th std dev [±]	8 (232Th/238U)	9 (232Th/238U) std dev [±]	10 (230Th/238U)	11 (230Th/238U) std dev [±]	12 (234U/238U)	13 (234U/238U) std dev [±]
325-M0031A	37.00	325-M0031A-16R-1,0-3	3.106	0.011	0.20	0.00	0.0000208	0.0000005	0.2341	0.0020	1.1316	0.0007
325-M0032A	15.02	325-M0032A-8R-CC,0-2	0.894	0.003	13.56	0.23	0.0049670	0.0000860	0.1944	0.0021	1.1332	0.0007
325-M0032A	30.92	325-M0032A-18R-CC,8-10	2.241	0.008	0.99	0.02	0.0001448	0.0000026	0.4854	0.0048	1.1213	0.0007
325-M0033A	20.40	325-M0033A-15R-CC,5-7	1.381	0.005	110.40	1.90	0.0261600	0.0004500	0.2815	0.0025	1.1294	0.0007
325-M0034A	18.76	325-M0034A-13R-CC,6-8	2.734	0.009	0.17	0.00	0.0000208	0.0000005	0.1120	0.0011	1.1425	0.0007
325-M0035A	26.50	325-M0035A-20R-CC,0-2	2.719	0.009	0.30	0.01	0.0000362	0.0000007	0.2024	0.0017	1.1335	0.0008
325-M0036A	25.24	325-M0036A-18R-CC,8-10	3.939	0.014	10.39	0.17	0.0008640	0.0000140	0.1981	0.0017	1.1342	0.0007
325-M0037A	9.94	325-M0037A-7R-CC,2-4	1.757	0.006	7.44	0.13	0.0013860	0.0000240	0.1241	0.0010	1.1362	0.0007
325-M0039A	20.01	325-M0039A-16R-CC,8-10	4.007	0.014	7.22	0.12	0.0005900	0.0000100	0.1810	0.0014	1.1364	0.0007
325-M0040A	12.39	325-M0040A-8R-CC,5-8	3.717	0.013	7.45	0.13	0.0006560	0.0000110	0.2304	0.0018	1.1300	0.0007
325-M0042A	35.60	325-M0042A-24R-CC,8-9	1.344	0.005	2.87	0.05	0.0006990	0.0000120	0.8780	0.0100	1.0950	0.0007
325-M0043A	26.24	325-M0043A-18R-CC,2-4	4.290	0.015	2.81	0.05	0.0002148	0.0000037	0.1934	0.0017	1.1340	0.0008
325-M0046A	13.50	325-M0046A-11R-CC,10-11	4.088	0.014	1.55	0.03	0.0001243	0.0000022	0.1668	0.0015	1.1378	0.0007
325-M0047A	27.53	325-M0047A-11R-CC,5-6	4.232	0.015	0.96	0.02	0.0000740	0.0000013	0.1978	0.0016	1.1348	0.0007
325-M0049B	12.01	325-M0049B-9R-CC,4-5	3.356	0.012	6.83	0.12	0.0006670	0.0000120	0.1520	0.0014	1.1449	0.0007
325-M0053A	25.77	325-M0053A-25R-CC,2-3	4.533	0.016	6.68	0.12	0.0004821	0.0000087	0.2217	0.0020	1.1315	0.0007
325-M0054B	15.50	325-M0054B-4R-CC,2-3	3.682	0.013	2.71	0.05	0.0002414	0.0000043	0.1919	0.0015	1.1355	0.0008
325-M0055A	15.23	325-M0055A-5R-CC,0-1	2.678	0.009	12.80	0.22	0.0015650	0.0000270	0.2332	0.0020	1.1307	0.0007
325-M0056A	32.59	325-M0056A-13R-CC,2-3	1.674	0.006	26.90	0.50	0.0052610	0.0000930	0.6007	0.0051	1.1062	0.0007
325-M0057A	38.04	325-M0057A-15R-CC,9-10	1.074	0.004	1.95	0.04	0.0005950	0.0000110	1.1730	0.0130	1.0868	0.0007