Citation:

science.249.4964.51

Name: (Table 1) Trace element concentrations and Sr isotope ratios of carbonates
Published: 1990
License: https://creativecommons.org/licenses/by/3.0/

Always quote citation above when using data! You can download the citation in several formats below.

Published: 1990 (exact date unknown) • DOI registered: 2011-12-30

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Abstract:

Measurements of marine carbonate samples indicate that during the past 2.5 million years the 87Sr/86Sr ratio of seawater has increased by 14 * 10**-5. The high average rate of increase of 87Sr/86Sr indicates that continental weathering rates were exceptionally high. Nonuniformity in the rate of increase suggests that weathering rates fluctuated by as much as ±30 percent of present-day values. Some of the observed shifts in weathering rates are contemporaneous with climatic changes inferred from records of oxygen isotopes and carbonate preservation in deep sea sediments.

Project(s):

Deep Sea Drilling Project (DSDP)

Coverage:

Median Latitude: -11.637333 * Median Longitude: 168.425917 * South-bound Latitude: -31.167000 * West-bound Longitude: 156.100000 * North-bound Latitude: 20.330000 * East-bound Longitude: -156.100000

Date/Time Start: 1971-05-08T00:00:00 * Date/Time End: 1982-12-15T00:00:00

Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 107.0 m

Event(s):

90-590 * Latitude: -31.167000 * Longitude: 163.358500 * Date/Time: 1982-12-15T00:00:00 * Elevation: -1299.0 m * Penetration: 26.2 m * Recovery: 26.4 m * Location: South Pacific/Tasman Sea/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 26.2 m cored; 0 m drilled; 100.6 % recovery

90-590A * Latitude: -31.167000 * Longitude: 163.358500 * Date/Time: 1982-12-15T00:00:00 * Elevation: -1299.0 m * Penetration: 280.8 m * Recovery: 225.1 m * Location: South Pacific/Tasman Sea/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 245 m cored; 9.6 m drilled; 91.9 % recovery

90-590B * Latitude: -31.167000 * Longitude: 163.358500 * Date/Time: 1982-12-15T00:00:00 * Elevation: -1299.0 m * Penetration: 499.1 m * Recovery: 464.6 m * Location: South Pacific/Tasman Sea/CONT RISE * Campaign: * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 53 cores; 499.1 m cored; 0 m drilled; 93.1 % recovery

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Sample code/label	Sample label		Smirnov, Alexander	DSDP/ODP/IODP sample designation
3	Sample comment	Sample comment		Smirnov, Alexander
4	DEPTH, sediment/rock	Depth sed	m			Geocode
5	Nannofossil zone	Nannos zone		Smirnov, Alexander
6	AGE	Age	ka BP			Geocode
7	Potassium	K	mg/kg	Smirnov, Alexander
8	Strontium	Sr	mg/kg	Smirnov, Alexander
9	Rubidium-87/Strontium-86 ratio	87Rb/86Sr		Smirnov, Alexander
10	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Smirnov, Alexander		measured
11	Strontium-87/Strontium-86 ratio, error	87Sr/86Sr e	±	Smirnov, Alexander		measured, 2 sigma
12	Strontium-87/Strontium-86 ratio	87Sr/86Sr		Smirnov, Alexander		avereage
13	Strontium-87/Strontium-86 ratio, error	87Sr/86Sr e	±	Smirnov, Alexander		avereage, 2 sigma

License:

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

Size:

337 data points

Data

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

1 Event	2 Sample label	3 Sample comment	4 Depth sed [m]	5 Nannos zone	6 Age [ka BP]	7 K [mg/kg]	8 Sr [mg/kg]	9 87Rb/86Sr	10 87Sr/86Sr (measured)	11 87Sr/86Sr e [±] (measured, 2 sigma)	12 87Sr/86Sr (avereage)	13 87Sr/86Sr e [±] (avereage, 2 sigma)
90-590	90-590-1-1		0.2	NN21	10				0.709242	0.000020	0.709241	0.000005
90-590	90-590-1-1		0.2	NN21	10				0.709241	0.000020
90-590	90-590-1-1		0.2	NN21	10				0.709241	0.000020
90-590	90-590-1-1		0.2	NN21	10				0.709241	0.000020
90-590A	90-590A-2-1		0.6	NN18	1880				0.709156	0.000010	0.709155	0.000005
90-590A	90-590A-2-1	forams	0.6	NN18	1880				0.709154	0.000009
90-590A	90-590A-2-1	forams	0.6	NN18	1880				0.709155	0.000009
90-590A	90-590A-3-2		1.4	NN16	2470				0.709132	0.000011	0.709131	0.000005
90-590A	90-590A-3-2		1.4	NN16	2470				0.709130	0.000013
90-590B	90-590B-1-1		1.0	NN20	300	439	1476	0.0010	0.709261	0.000024	0.709255	0.000005
90-590B	90-590B-1-1		1.0	NN20	300				0.709250	0.000018
90-590B	90-590B-1-1		1.0	NN20	300	466	1724	0.0005	0.709254	0.000033
90-590B	90-590B-1-1		1.0	NN20	300				0.709255	0.000018
90-590B	90-590B-2-1		3.0	NN19	380	495	1652	0.0010	0.709238	0.000041	0.709235	0.000007
90-590B	90-590B-2-1		3.0	NN19	380				0.709228	0.000034
90-590B	90-590B-2-1		3.0	NN19	380	543	1646	0.0007	0.709240	0.000011
90-590B	90-590B-2-3		6.0	NN19	510	613	1690	0.0016	0.709218	0.000025	0.709224	0.000012
90-590B	90-590B-2-3		6.0	NN19	510	617	1716	0.0010	0.709230	0.000017
90-590B	90-590B-2-5		9.0	NN19	630	530	1238	0.0009	0.709218	0.000014	0.709216	0.000005
90-590B	90-590B-2-5		9.0	NN19	730				0.709215	0.000012
90-590B	90-590B-3-1		12.6	NN19	780	716	1675	0.0017	0.709210	0.000032	0.709195	0.000012
90-590B	90-590B-3-1		12.6	NN19	780				0.709187	0.000025
90-590B	90-590B-3-1		12.6	NN19	780	467	1495	0.0014	0.709185	0.000031
90-590B	90-590B-3-1		12.6	NN19	780				0.709199	0.000010
90-590B	90-590B-3-3		15.6	NN19	910	723	1643	0.0011	0.709210	0.000013	0.709210	0.000005
90-590B	90-590B-3-3	forams	15.6	NN19	910	56	1331	0.0007	0.709210	0.000012
90-590B	90-590B-3-3	forams	15.6	NN19	910	4	357	0.0012	0.709209	0.000017
90-590B	90-590B-3-5		18.6	NN19	1030	518	1728	0.0009	0.709204	0.000016	0.709206	0.000005
90-590B	90-590B-3-5		18.6	NN19	1030		1638	0.0022	0.709204	0.000030
90-590B	90-590B-3-5		18.6	NN19	1030				0.709210	0.000009
90-590B	90-590B-4-1		22.2	NN19	1230	451	2205	0.0006	0.709181	0.000014	0.709180	0.000005
90-590B	90-590B-4-1		22.2	NN19	1230				0.709178	0.000013
90-590B	90-590B-4-3		25.2	NN19	1380	453	1886	0.0007	0.709158	0.000011	0.709171	0.000009
90-590B	90-590B-4-3		25.2	NN19	1380		1865	0.0009	0.709179	0.000010
90-590B	90-590B-4-3		25.2	NN19	1380				0.709171	0.000009
90-590B	90-590B-4-3		25.2	NN19	1380				0.709175	0.000010
90-590B	90-590B-4-6		29.7	NN19	1610	576	2148	0.0010	0.709162	0.000017	0.709161	0.000007
90-590B	90-590B-4-6		29.7	NN19	1610				0.709166	0.000019
90-590B	90-590B-4-6		29.7	NN19	1610				0.709154	0.000010
90-590B	90-590B-5-2		33.0	NN19	1770				0.709164	0.000010	0.709162	0.000005
90-590B	90-590B-5-2		33.0	NN19	1770				0.709160	0.000021
90-590B	90-590B-5-6		39.0	NN18	2080	372	1637	0.0013	0.709156	0.000014	0.709159	0.000006
90-590B	90-590B-5-6		39.0	NN18	2080				0.709162	0.000010
90-590B	90-590B6-3		44.0	NN17	2370	439	1912	0.0008	0.709125	0.000017	0.709122	0.000006
90-590B	90-590B6-3		44.0	NN17	2370				0.709119	0.000030
90-590B	90-590B8-6		68.0	NN16	3100	393	1892	0.0006	0.709129	0.000021	0.709126	0.000005
90-590B	90-590B8-6		68.0	NN16	3100				0.709124	0.000015
90-590B	90-590B-12-6		107.0	NN14/15	3600		1781		0.709121	0.000016	0.709121	0.000016
HC-170-5	HC-170-5		0.0		14		6463		0.709246	0.000020	0.709250	0.000009
HC-170-5	HC-170-5		0.0		14				0.709255	0.000020
HC-287-6	HC-287-6		0.0		120	128	1864	0.0043	0.709260	0.000020	0.709258	0.000005
HC-287-6	HC-287-6		0.0		120				0.709256	0.000023
V28-238	V28-238-0.6		0.6	NN19	350				0.709234	0.000006	0.709238	0.000007
V28-238	V28-238-0.6		0.6	NN19	350				0.709241	0.000040
V28-238	V28-238-1.2		1.2	NN19	730	304	1510	0.0018	0.709198	0.000015	0.709201	0.000006
V28-238	V28-238-1.2		1.2	NN19	730				0.709204	0.000018