Citation:

ajs.280.9.849

Name: (Tables 1,2 and 3, pages 853-854) Isotopic data for the solid-phase of three sediment box cores from the DOMES Sites A, B and C in the Pacific Ocean
Published: 1980
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Determination of radium, thorium, uranium isotopes, and 210Pb in sediments and sediment pore waters from North Equatorial Pacific deep-sea clay-silicous oozes shows that the radium and uranium isotopes are mobile in the pore water. The concentration-depth profiles of radium can be understood in terms of a diagenetic model which takes into account mixing of sediment particles by bioturbation, molecular diffusion in the pore water, adsorption onto particle surfaces, as well as radioactive production and decay. The 234U/238U activity ratios in several samples are higher than the seawater value, indicating some enrichment of 234U in the pore water. However, the absolute concentrations of 238U and 234U are 25% lower than those in seawater, suggesting that the sediments form a sink for uranium isotopes. 210Pb is present in the pore water at concentrations approx. 20% that of 226Ra. The origin of 210Pb in the pore water is uncertain and could be due either to its in situ mobilization in the sediments or subsequent production in the laboratory from the decay of 222Rn. 230Th is present in measurable concentrations in the pore waters, but its distribution does not show any systematic trend with depth or other parameters. The most likely source of 230/Th appears to be minute amounts of sediment particles collected in the pore waters during the squeezing operation.

Source:

Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT

Further details:

Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN

Project(s):

NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)

Coverage:

Median Latitude: 11.871100 * Median Longitude: -138.728900 * South-bound Latitude: 9.038300 * West-bound Longitude: -151.190000 * North-bound Latitude: 15.326700 * East-bound Longitude: -125.906700

Date/Time Start: 1975-10-29T00:00:00 * Date/Time End: 1975-11-13T00:00:00

Minimum Elevation: -4948.0 m * Maximum Elevation: -4551.0 m

Event(s):

RP8OC75-47-16 (DOMES-A47-16) * Latitude: 9.038300 * Longitude: -151.190000 * Date/Time: 1975-10-29T00:00:00 * Elevation: -4948.0 m * Location: Pacific Ocean * Campaign: * Basis: Oceanographer * Method/Device: Box corer (BC)

RP8OC75-52-39 * Latitude: 11.248300 * Longitude: -139.090000 * Date/Time: 1975-11-05T00:00:00 * Elevation: -4831.0 m * Location: DOMES Site B, Pacific Ocean * Campaign: (RP-8-OC-75) * Basis: Oceanographer * Method/Device: Box corer (BC)

RP8OC75-57-58 * Latitude: 15.326700 * Longitude: -125.906700 * Date/Time: 1975-11-13T00:00:00 * Elevation: -4551.0 m * Recovery: 0.4318 m * Location: DOMES Site C, Pacific Ocean * Campaign: (RP-8-OC-75) * Basis: Oceanographer * Method/Device: Box corer (BC)

Comment:

From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Cochran, J Kirk
2	Date/Time of event	Date/Time		Cochran, J Kirk
3	Latitude of event	Latitude		Cochran, J Kirk
4	Longitude of event	Longitude		Cochran, J Kirk
5	Elevation of event	Elevation	m	Cochran, J Kirk
6	Sample ID	Sample ID		Cochran, J Kirk
7	DEPTH, sediment/rock	Depth sed	m	Cochran, J Kirk	Geocode
8	DISTANCE	Distance	cm	Cochran, J Kirk	Geocode
9	Distance, minimum	Dist min	mm	Cochran, J Kirk
10	Distance, maximum	Dist max	mm	Cochran, J Kirk
11	Thorium-232	232Th	dpm/g	Cochran, J Kirk
12	Thorium-232, standard deviation	232Th std dev	±	Cochran, J Kirk
13	Thorium-230	230Th	dpm/g	Cochran, J Kirk
14	Thorium-230, standard deviation	230Th std dev	±	Cochran, J Kirk
15	Uranium-238	238U	dpm/g	Cochran, J Kirk
16	Uranium-238, standard deviation	238U std dev	±	Cochran, J Kirk
17	Radium-226	226Ra	dpm/g	Cochran, J Kirk
18	Radium-226, standard deviation	226Ra std dev	±	Cochran, J Kirk
19	Lead-210	210Pb	dpm/g	Cochran, J Kirk
20	Lead-210, standard deviation	210Pb std dev	±	Cochran, J Kirk
21	Lead-210 excess	210Pb xs	dpm/g	Cochran, J Kirk
22	Lead-210 excess, standard deviation	210Pb xs std dev	±	Cochran, J Kirk
23	Thorium-230/Thorium-232 activity ratio	(230Th/232Th)		Cochran, J Kirk
24	Thorium-230/Thorium-232 activity ratio, standard deviation	(230Th/232Th) std dev	±	Cochran, J Kirk
25	Thorium-230/Thorium-227 activity ratio	(230Th/227Th)		Cochran, J Kirk
26	Thorium-230/Thorium-227 activity ratio, standard deviation	(230Th/227Th) std dev	±	Cochran, J Kirk
27	Thorium-228/Thorium-232 activity ratio	(228Th/232Th)		Cochran, J Kirk
28	Thorium-228/Thorium-232 activity ratio, standard deviation	(228Th/232Th) std dev	±	Cochran, J Kirk
29	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Cochran, J Kirk
30	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Cochran, J Kirk
31	Sample type	Samp type		Cochran, J Kirk

License:

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

Size:

462 data points

Data

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

1 Event	2 Date/Time	3 Latitude	4 Longitude	5 Elevation [m]	6 Sample ID	8 Distance [cm]	9 Dist min [mm]	10 Dist max [mm]	11 232Th [dpm/g]	12 232Th std dev [±]	13 230Th [dpm/g]	14 230Th std dev [±]	15 238U [dpm/g]	16 238U std dev [±]	17 226Ra [dpm/g]	18 226Ra std dev [±]	19 210Pb [dpm/g]	20 210Pb std dev [±]	21 210Pb xs [dpm/g]	22 210Pb xs std dev [±]	23 (230Th/232Th)	24 (230Th/232Th) std dev [±]	25 (230Th/227Th)	26 (230Th/227Th) std dev [±]	27 (228Th/232Th)	28 (228Th/232Th) std dev [±]	29 (234U/238U)	30 (234U/238U) std dev [±]	31 Samp type
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-1	0.05	0	1	4.69	0.19	189.00	3.00			57.1	1.9	104.0	2.0	47.5	3.1	40.20	1.50	36.2	2.1	0.70	0.04			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-3	0.25	2	3	4.31	0.17	172.00	4.00			84.1	4.9	105.0	2.0	21.5	5.1	39.00	1.90	34.9	3.1	0.73	0.04			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-7	0.65	6	7	4.20	0.14	178.00	4.00			96.7	5.1	95.0	2.2	1.7	5.6	42.40	1.10	34.3	2.3	0.83	0.03			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-11	1.10	10	12	3.64	0.15	133.00	3.00			81.5	2.9	81.0	1.9			36.40	1.30	36.8	2.2	0.80	0.04			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-13	1.50	14	16	5.14	0.39	120.00	5.00			82.6	4.7					23.20	1.50	46.5	16.5	0.79	0.08			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-17	2.30	22	24	4.31	0.19	65.70	1.60	1.16	0.07	51.2	2.0	51.1	1.2			15.30	0.60					1.13	0.09	Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-21	3.15	30	33	4.40	0.18	34.90	0.80			37.0	1.9					7.92	0.31	132.0	81.0	0.97	0.05			Sediment
RP8OC75-47-16	1975-10-29	9.0383	-151.1900	-4948	RP8OC75-47-16-Sed-A-23	3.90	37	41	3.52	0.13	5.45	0.17	1.47	0.07	30.9	1.1	30.1	1.3			1.55	0.07			0.99	0.03	0.89	0.06	Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-1	0.05	0	1	3.41	0.20	152.00	5.00	1.39	0.04	52.8	1.8	92.8	1.9	40.8	2.6	44.60	2.20	30.5	2.1	0.65	0.05	0.97	0.04	Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-4	0.35	3	4	4.93	0.29	171.00	4.00			72.4	2.9	86.9	1.9	15.0	3.6	34.70	2.00	27.3	2.8	0.83	0.07			Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-7	0.80	7	9	4.53	0.25	159.00	5.00			85.2	4.3	88.2	2.4	3.1	5.1	35.00	1.70	26.5	21.0	0.82	0.06			Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-9	1.20	11	13	3.92	0.20	126.00	3.00	1.49	0.07	79.1	0.1	77.5	1.8			32.20	1.50	34.2	2.7	0.85	0.05	1.02	0.07	Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-12	1.80	17	19	4.49	0.20	118.00	3.00			81.1	3.8					26.30	1.00	60.4	10.2	0.98	0.05			Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-15	2.40	23	25	4.49	0.15	84.50	1.60	1.31	0.11	62.6	3.3	63.0	1.4			18.80	0.60					1.07	0.12	Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-18	3.25	31	34	4.21	0.22	73.40	2.40	1.37	0.08	55.9	2.9					17.50	0.70					0.95	0.07	Sediment
RP8OC75-52-39	1975-11-05	11.2483	-139.0900	-4831	RP8OC75-52-39-Sed-B-20	3.85	37	40	4.08	0.14	63.00	1.20	1.50	0.13	52.0	3.1	51.0	1.1			15.40	0.50					0.90	0.10	Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-1	0.05	0	1	4.58	0.22	138.00	5.00	1.71	0.13	42.6	2.2	69.9	1.6	29.2	2.4	28.80	1.30	29.7	1.8	0.69	0.04	0.84	0.09	Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-4	0.35	3	4	5.04	0.21	151.00	4.00			54.3	2.2	66.5	1.6	12.7	2.8	30.00	1.00	36.7	3.2	0.87	0.04			Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-6	0.60	5	7	4.62	0.21	136.00	4.00			60.6	3.0	64.0	1.6	3.5	3.5	29.40	1.00	22.8	2.6	0.86	0.05			Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-8	0.95	9	10	4.24	0.20	111.00	4.00	1.80	0.11	65.2	2.4	67.7	1.5	2.5	2.9	26.10	0.90	34.7	3.7	0.84	0.06	1.10	0.09	Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-10	1.30	12	14	5.70	0.27	129.00	4.00			79.7	6.0					22.60	0.90	36.4	6.8	0.88	0.05			Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-l3	1.90	18	20	4.11	0.21	81.00	2.60	1.83	0.10	71.0	3.0	70.7	1.6			22.10	1.00			0.98	0.06	0.90	0.07	Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-16	2.50	24	26	4.36	0.23	62.70	2.20	1.68	0.06	55.1	2.3					14.40	0.60			0.91	0.05	0.97	0.05	Sediment
RP8OC75-57-58	1975-11-13	15.3267	-125.9067	-4551	RP8OC75-57-58-Sed-C-21	3.75	36	39	3.94	0.15	24.90	0.60	1.91	0.09	27.6	1.3	28.0	0.6			6.33	0.25					0.92	0.07	Sediment