Citation:

0091-7613(2001)029%3C0147:OOCCII%3E2.0.CO;2

Name: (Table 1) Sr-Nd-Pb isotopic compositions of samples from ODP Hole 183-1137
Published: 2001
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Basalts forming the floor of the Indian Ocean are geochemically distinct from those of the Atlantic and Pacific Oceans. These differences have been attributed to a deeply recycled continental component or to widespread dispersion of plume-type mantle within the Indian Ocean asthenosphere. The discovery of Proterozoic continental crustal rocks within the uppermost basaltic basement of Elan Bank, part of the Kerguelen Plateau, shows instead that direct shallow-level contamination of basaltic magmas by isolated continental crust fragments may have produced the anomalous isotopic ratios of some Indian Ocean basalts.

Project(s):

Ocean Drilling Program (ODP)

Coverage:

Latitude: -56.833050 * Longitude: 68.093450

Date/Time Start: 1998-12-31T00:00:00 * Date/Time End: 1999-01-06T00:00:00

Minimum DEPTH, sediment/rock: 229.46 m * Maximum DEPTH, sediment/rock: 369.39 m

Event(s):

183-1137 * Latitude: -56.833050 * Longitude: 68.093450 * Date/Time Start: 1998-12-31T00:00:00 * Date/Time End: 1999-01-06T00:00:00 * Elevation: -1004.5 m * Penetration: 371.2 m * Recovery: 219.4 m * Location: Indian Ocean * Campaign: * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 46 cores; 371.2 m cored; 0 m drilled; 59.1% recovery

Comment:

87Sr/88Sr values are normalized to 86Sr/88Sr = 0.1194. The average value of NBS 987 over the course of the study is 0.710272+/-0.000009 (n = 45).

143Nd/144Nd values are normalized to 146Nd/144Nd = 0.7219. The average value of Merck Nd standard over the course of this study is 0.511963+/-0.000009 (n = 64).

Pb isotropic ratios are corrected by a factor of 1.0007 per atomic mass unit for mass fractionation on the basis of repeated analyses of the standard NBS 981. 206Pb/204Pb and 207Pb/204Pb are measured with a precision of 0.1‰ and 208Pb/204Pb of 0.15‰.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DEPTH, sediment/rock	Depth sed	m			Geocode
2	Sample code/label	Sample label		Weis, Dominique A M	DSDP/ODP/IODP sample designation
3	Lithologic unit/sequence	Unit		Weis, Dominique A M
4	Rubidium	Rb	mg/kg	Weis, Dominique A M
5	Strontium	Sr	mg/kg	Weis, Dominique A M
6	Rubidium-87/Strontium-86 ratio	87Rb/86Sr		Weis, Dominique A M	Mass spectrometer multicollector VG 54
7	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Weis, Dominique A M	Mass spectrometer multicollector VG 54
8	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Weis, Dominique A M	Calculated	108 Ma
9	Strontium-87/Strontium-86 ratio, error	87Sr/86Sr e	±	Weis, Dominique A M	Calculated	2 sigma
10	Neodymium-143/Neodymium-144 ratio	143Nd/144Nd		Weis, Dominique A M	Mass spectrometer multicollector VG 54
11	Neodymium-143/Neodymium-144 ratio, error	143Nd/144Nd e	±	Weis, Dominique A M	Calculated	2 sigma
12	Lead-206/Lead-204 ratio	206Pb/204Pb		Weis, Dominique A M	Mass spectrometer multicollector VG 54
13	Lead-207/Lead-204 ratio	207Pb/204Pb		Weis, Dominique A M	Mass spectrometer multicollector VG 54
14	Lead-208/Lead-204 ratio	208Pb/204Pb		Weis, Dominique A M	Mass spectrometer multicollector VG 54

License:

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

Size:

156 data points

Data

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

1 Depth sed [m]	2 Sample label (DSDP/ODP/IODP sample designation)	3 Unit	4 Rb [mg/kg]	5 Sr [mg/kg]	6 87Rb/86Sr (Mass spectrometer multicollec...)	7 87Sr/86Sr (Mass spectrometer multicollec...)	8 87Sr/86Sr (108 Ma, Calculated)	9 87Sr/86Sr e [±] (2 sigma, Calculated)	10 143Nd/144Nd (Mass spectrometer multicollec...)	11 143Nd/144Nd e [±] (2 sigma, Calculated)	12 206Pb/204Pb (Mass spectrometer multicollec...)	13 207Pb/204Pb (Mass spectrometer multicollec...)	14 208Pb/204Pb (Mass spectrometer multicollec...)
229.46	183-1137-25R-1,106-108, piece 4	plagioclase-phyric basalt	12.0	549	0.063	0.705068	0.704970	0.000009	0.512550	0.000010	17.989	15.594	38.55
239.53	183-1137-26R-2,5-7, piece 1	basalt	17.5	531	0.095	0.705075	0.704930	0.000008	0.512567	0.000009	17.995	15.611	38.60
257.17	183-1137-28R-4,28-30, piece 5	basalt	12.0	553	0.063	0.704941	0.704840	0.000008	0.512576	0.000014	17.995	15.587	38.53
270.98	183-1137-31R-4,48-51, piece 5	basalt	8.8	601	0.042	0.704903	0.704840	0.000008	0.512587	0.000009	18.039	15.614	38.64
288.93	183-1137-33R-3,46-49, piece 1B	sandstone	157.4	109	4.180	0.717731	0.711190	0.000007	0.512218	0.000011	18.557	15.802	39.78
291.26	183-1137-33R-5,7-9, piece 1	trachyte	145.9	219	1.930	0.713042	0.710030	0.000008	0.512256	0.000009	18.573	15.820	39.79
296.55	183-1137-34R-2,111-113, piece 1D	flow-banded trachyte	211.6	38	16.200	0.732206	0.706950	0.000007	0.512267	0.000010	18.557	15.796	39.70
306.10	183-1137-35R-2,44-46, piece 5	garnet-biotite gneiss	188.3	106	5.180	0.785608	0.777510	0.000008	0.511828	0.000010	18.296	15.769	40.33
330.15	183-1137-38R-3,83-86, piece 1	basalt	5.3	526	0.029	0.705606	0.705560	0.000007	0.512504	0.000017	17.999	15.637	38.71
339.22	183-1137-40R-2,119-121, piece 1D	basalt	11.7	491	0.069	0.706059	0.705950	0.000008	0.512438	0.000029	17.950	15.643	38.95
344.28	183-1137-41R-1,128-130, piece 6B	felsic tuff	52.9	36	4.260	0.715519	0.708860	0.000008	0.512273	0.000009	18.497	15.790	39.71
369.39	183-1137-46R-2,92-95, piece 3B	plagioclase-phyric basalt	18.7	489	0.111	0.705686	0.705510	0.000008	0.512543	0.000008	18.015	15.654	38.91