Citation:

S0016-7037(98)00051-9

Name: (Table 2) Location, age of accompanied sediments, chemical and Sr isotopic compositions of manganese nodules in DSDP/ODP cores
Published: 1998
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Strontium isotopic compositions of acetic acid (HOAc) leachate fractions of eight manganese oxide deposits from the modern seafloor, and of twenty-one buried manganese nodules from Cretaceous to Recent sediments in DSDP/ODP cores were measured. ratios of HOAc leachates in all modern seafloor manganese oxides of various origins are identical with present seawater. The ratios of the HOAc leachates of buried nodules from DSDP/ODP cores are significantly lower than those of nodules from the modern seafloor and are mostly identical with coeval seawater values estimated from the age of associated sediments. It is suggested that the buried nodules in DSDP/ODP cores are not artifacts transported from the present seafloor during the drilling process, but are in situ fossil deposits from the past deep-sea floor during Cretaceous to Quaternary periods. The formation of deep-sea fossil nodules prior to the formation of Antarctic Bottom Water (AABW) indicates that the circulation of oxygenated deep seawaters have activately deposited manganese oxides since the Eocene Epoch, or earlier.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: 13.912936 * Median Longitude: -112.258418 * South-bound Latitude: -51.542000 * West-bound Longitude: 115.541300 * North-bound Latitude: 56.290000 * East-bound Longitude: -19.386100

Date/Time Start: 1969-05-10T00:00:00 * Date/Time End: 1988-07-14T13:00:00

Minimum DEPTH, sediment/rock: 3.5 m * Maximum DEPTH, sediment/rock: 1096.4 m

Event(s):

5-37 * Latitude: 40.979000 * Longitude: -140.718500 * Date/Time: 1969-05-10T00:00:00 * Elevation: -4682.0 m * Penetration: 30 m * Recovery: 30.6 m * Location: North Pacific/HILL * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 30 m cored; 0 m drilled; 102 % recovery

15-150 * Latitude: 14.511500 * Longitude: -69.355800 * Date/Time: 1971-01-10T00:00:00 * Elevation: -4545.0 m * Penetration: 180 m * Recovery: 32.4 m * Location: Caribbean Sea/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 11 cores; 90 m cored; 0 m drilled; 36 % recovery

32-303 * Latitude: 40.808300 * Longitude: 154.451200 * Date/Time: 1973-08-18T00:00:00 * Elevation: -5609.0 m * Penetration: 229 m * Recovery: 25.9 m * Location: North Pacific/BASIN * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 5 cores; 45 m cored; 9 m drilled; 57.6 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Comment	Comment		Ito, Takashi
3	Latitude of event	Latitude
4	Longitude of event	Longitude
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Sample code/label	Sample label		Ito, Takashi	DSDP/ODP/IODP sample designation
7	Sample code/label 2	Sample label 2		Ito, Takashi
8	Epoch	Epoch		Ito, Takashi
9	Minerals	Minerals		Ito, Takashi
10	Interval comments	Interval comm		Ito, Takashi
11	Manganese	Mn	%	Ito, Takashi	ICP-OES, Inductively coupled plasma - optical emission spectrometry	bulk content
12	Iron	Fe	%	Ito, Takashi	ICP-OES, Inductively coupled plasma - optical emission spectrometry	leached with 1% acetic acid
13	Strontium	Sr	mg/kg	Ito, Takashi	ICP-OES, Inductively coupled plasma - optical emission spectrometry	bulk content
14	Strontium	Sr	mg/kg	Ito, Takashi	ICP-OES, Inductively coupled plasma - optical emission spectrometry	leached with 1% acetic acid
15	Rubidium	Rb	mg/kg	Ito, Takashi	ICP-OES, Inductively coupled plasma - optical emission spectrometry	leached with 1% acetic acid
16	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Ito, Takashi	Mass spectrometer Finnigan MAT 262 RPQ Plus	of 1% acetic acid laechates
17	Strontium-87/Strontium-86 ratio, error	87Sr/86Sr e	±	Ito, Takashi	Mass spectrometer Finnigan MAT 262 RPQ Plus

License:

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

Size:

257 data points

Data

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

1 Event	2 Comment	3 Latitude	4 Longitude	5 Depth sed [m]	6 Sample label (DSDP/ODP/IODP sample designation)	7 Sample label 2	8 Epoch	9 Minerals	10 Interval comm	11 Mn [%] (bulk content, ICP-OES, Induct...)	12 Fe [%] (leached with 1% acetic acid, ...)	13 Sr [mg/kg] (bulk content, ICP-OES, Induct...)	14 Sr [mg/kg] (leached with 1% acetic acid, ...)	15 Rb [mg/kg] (leached with 1% acetic acid, ...)	16 87Sr/86Sr (of 1% acetic acid laechates, ...)	17 87Sr/86Sr e [±] (Mass spectrometer Finnigan MA...)
108-661A	Atlantic Ocean	9.4468	-19.3861	90.9	108-661A-11H-3, 84-85	E20	Miocene	manganite	0-5 mm	48.18	1.03	1315	221		0.708558	0.000009
114-699A	Atlantic Ocean	-51.5420	-30.6770	66.7	114-699A-8H-1, 108-113	E22	Middle-Late Miocene	vernadite	0-22 mm	18.23	8.31	729	333		0.708327	0.000011
114-699A	Atlantic Ocean	-51.5420	-30.6770	67.1	114-699A-8H-1, 146-150	E23-1	Middle-Late Miocene	vernadite	0-4 mm	10.62	13.24	580	195	1.15	0.708358	0.000010
122-760A	Indian Ocean	-16.9220	115.5413	80.1	122-760A-9H-4, 143-144	G1	Early-Middle Eocene	vernadite, goethite	0-5 mm	16.20	22.00	1041	656		0.707674	0.000012
15-150	Caribbean Sea	14.5115	-69.3558	98.9	15-150-4-3, 85-88	E1	Early Miocene	vernadite, goethite	0-11 mm	6.70	19.57	636	282	0.66	0.708663	0.000009
15-150	Caribbean Sea	14.5115	-69.3558	109.8	15-150-5-4, 33-35	E2	Early Miocene	vernadite, goethite	0-6 mm	5.59	19.32	431	119		0.708625	0.000009
15-150	Caribbean Sea	14.5115	-69.3558	110.4	15-150-5-4, 87-91	E3-o	Early Miocene	vernadite, goethite	0-3 mm	4.95	18.06	343	110	0.84	0.708634	0.000011
15-150	Caribbean Sea	14.5115	-69.3558	112.3	15-150-5-5, 127-130	E5	Early Miocene	vernadite, goethite	0-15 mm	8.17	20.81	625	323	0.99	0.708705	0.000008
32-303	Pacific Ocean	40.8083	154.4512	180.0	32-303-4-5, 113-115	W5	Late Miocene	vernadite	0-5 mm	13.43	13.16	679	232		0.708919	0.000011
36-328	Atlantic Ocean	-49.8112	-36.6588		36-328-1-3, 74-77	E7	Pleistocene	vernadite	0-38 mm	13.77	10.54	464	171		0.709120	0.000010
36-328	Atlantic Ocean	-49.8112	-36.6588	3.5	36-328-1-3, 53-57	E6	Pleistocene	vernadite	0-15 mm	9.14	11.63	293	147		0.709102	0.000010
36-328	Atlantic Ocean	-49.8112	-36.6588	22.1	36-328-3-4, 59-64	E8	Middle Miocene	buserite, vernadite	0-19 mm	20.93	5.49	423	135		0.708726	0.000012
36-328	Atlantic Ocean	-49.8112	-36.6588	24.3	36-328-3-5, 130-135	E9-1	Middle Miocene	vernadite	0-2 mm	14.47	11.77	452	197	1.30	0.708812	0.000009
36-328	Atlantic Ocean	-49.8112	-36.6588	50.3	36-328-4-4, 27-28	E10-L	Late Eocene	vernadite	2-6 mm	15.33	15.30	594	198		0.708219	0.000010
5-37	Pacific Ocean	40.9790	-140.7185	12.3	5-37-2-5, 125-127	W1	Pleistocene	vernadite	0-6 mm	24.69	15.42	1462	800		0.709157	0.000013
5-37	Pacific Ocean	40.9790	-140.7185	12.8	5-37-2-6, 33-36	W2-U	Pleistocene	vernadite	0-5 mm	24.03	15.63	1523	829		0.709121	0.000008
62-464	Pacific Ocean	39.8607	173.8888	23.1	62-464-4-1, 58-60	W7	Early Pliocene	vernadite, buserite	0-5 mm	18.26	8.89	670	383		0.709103	0.000009
81-554A	Atlantic Ocean	56.2900	-23.5282	118.7	81-554A-5-4, 22-24	E13	Late Eocene	vernadite	0-8 mm	9.65	10.24	822	487		0.708804	0.000010
86-578	Pacific Ocean	33.9260	151.6290	121.3	86-578-14-2, 97-100	W8	Late Miocene	vernadite	0-8.5 mm	17.96	13.06	701	272		0.708782	0.000009
93-603B	Atlantic Ocean	35.4952	-70.0285	953.8	93-603B-14R-6, 5-6	E14	Middle Miocene - Early Eocene	vernadite, goethite	0-7 mm	3.52	25.54	356	63		0.708103	0.000009
93-603B	Atlantic Ocean	35.4952	-70.0285	1096.4	93-603B-30R-5, 2-5	E19	Coniacian - Campanian	pyrolusite, 7A mineral	0-5 mm	38.99	1.19	2265	171		0.707706	0.000009