Makishima, Akio; Masuda, Akimasa (1994): (Table 3) Isotope ratios of Sr, Nd and Ce and LREE concentrations in Pacific and Atlantic MORB samples from DSDP holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.706047, Supplement to: Makishima, A; Masuda, A (1994): Ce isotope ratios of N-type MORB. Chemical Geology, 118(1-4), 1-8, https://doi.org/10.1016/0009-2541(94)90166-X
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Isotope ratios of Ce, Nd and Sr, and light rare-earth elements (La, Ce, Nd and Sm) concentrations were measured for sixteen N-type MORB samples from DSDP Sites 420, 421, 429, 597B and 597C (East Pacific Rise), 504B (Costa Rica Rift), and 395, 519A, 522B, 562 and 564 (Mid Atlantic Ridge). All the samples were confirmed as N-type MORB based on Nd and Sr isotope ratios, and LREE patterns. The Ce isotope ratios ranged from 0.0225616 (e-Ce = -1.6) to 0.0225633 (e-Ce = -1.0). Averages of e-Ce and e-Nd of N-type MORB were -1.4 and 9.5, respectively. The average of e-Ce is quite different from previous estimates. We propose that e-Ce = -1.4 should be used as the typical MORB Ce isotope ratio in future studies.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 2.550645 * Median Longitude: -73.684873 * South-bound Latitude: -26.136700 * West-bound Longitude: -129.770300 * North-bound Latitude: 33.739300 * East-bound Longitude: -5.129700
Date/Time Start: 1975-12-06T00:00:00 * Date/Time End: 1986-10-16T18:15:00
Minimum DEPTH, sediment/rock: 46.90 m * Maximum DEPTH, sediment/rock: 1529.76 m
Event(s):
45-395 * Latitude: 22.755800 * Longitude: -46.081700 * Date/Time: 1975-12-06T00:00:00 * Elevation: -4484.0 m * Penetration: 184.7 m * Recovery: 87.9 m * Campaign: Leg45 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 20 cores; 184.2 m cored; 0 m drilled; 47.7 % recovery
54-420 * Latitude: 9.001700 * Longitude: -106.112800 * Date/Time: 1977-05-10T00:00:00 * Elevation: -3381.0 m * Penetration: 147 m * Recovery: 82.2 m * Location: North Pacific/SEDIMENT POND * Campaign: Leg54 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 15 cores; 123.2 m cored; 0 m drilled; 66.7 % recovery
54-421 * Latitude: 9.023500 * Longitude: -106.061300 * Date/Time: 1977-05-12T00:00:00 * Elevation: -3339.0 m * Penetration: 114 m * Recovery: 11.2 m * Location: North Pacific/CONT RISE * Campaign: Leg54 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 38 m cored; 114 m drilled; 29.5 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 6 | Sample code/label | Sample label | Makishima, Akio | DSDP/ODP/IODP sample designation | ||
| 7 | Comment | Comment | Makishima, Akio | |||
| 8 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | ||
| 9 | Strontium-87/Strontium-86 ratio, error | 87Sr/86Sr e | ± | Makishima, Akio | Calculated | 2 sigma |
| 10 | Neodymium-143/Neodymium-144 ratio | 143Nd/144Nd | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | ||
| 11 | Neodymium-143/Neodymium-144 ratio, error | 143Nd/144Nd e | ± | Makishima, Akio | Calculated | 2 sigma |
| 12 | ε-Neodymium | ε-Nd | Makishima, Akio | Calculated | ||
| 13 | ε-Neodymium, standard deviation | ε-Nd std dev | ± | Makishima, Akio | Calculated | 2 sigma |
| 14 | Cerium-138/Cerium-142 ratio | 138Ce/142Ce | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | ||
| 15 | Cerium-138/Cerium-142, error | 138Ce/142Ce e | ± | Makishima, Akio | Calculated | 2 sigma |
| 16 | ε-Cerium | ε-Ce | Makishima, Akio | Calculated | ||
| 17 | ε-Cerium, error | ε-Ce e | ± | Makishima, Akio | Calculated | 2 sigma |
| 18 | Lanthanum | La | mg/kg | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | |
| 19 | Cerium | Ce | mg/kg | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | |
| 20 | Neodymium | Nd | mg/kg | Makishima, Akio | Mass spectrometer Finnigan MAT 261 | |
| 21 | Samarium | Sm | mg/kg | Makishima, Akio | Mass spectrometer Finnigan MAT 261 |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
256 data points