Barrett, T J; Friedrichsen, Hans (1982): (Table 4) Pb-, Sr- and O-isotopic compositions, and Rb and Sr contents of some basalts from the Galapagos mounds area, DSDP Leg 70 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.695925, In supplement to: Barrett, TJ; Friedrichsen, H (1982): Elemental and isotopic compositions of some metalliferous and pelagic sediments from the Galapagos mounds area, DSDP Leg 70. Chemical Geology, 36(3-4), 275-298, https://doi.org/10.1016/0009-2541(82)90052-3
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 0.777940 * Median Longitude: -86.156300 * South-bound Latitude: 0.533300 * West-bound Longitude: -86.410000 * North-bound Latitude: 1.613200 * East-bound Longitude: -86.090000
Date/Time Start: 1979-11-15T00:00:00 * Date/Time End: 1979-11-29T00:00:00
Minimum DEPTH, sediment/rock: 29.82 m * Maximum DEPTH, sediment/rock: 132.20 m
Event(s):
70-506G * Latitude: 0.609800 * Longitude: -86.091500 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2703.0 m * Penetration: 32.5 m * Recovery: 1 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 2 cores; 5 m cored; 0 m drilled; 21 % recovery
70-507B * Latitude: 0.566700 * Longitude: -86.090000 * Date/Time: 1979-11-20T00:00:00 * Elevation: -2691.0 m * Penetration: 38 m * Recovery: 0.6 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 7 m cored; 0 m drilled; 9 % recovery
70-507F * Latitude: 0.566700 * Longitude: -86.090000 * Date/Time: 1979-11-20T00:00:00 * Elevation: -2695.0 m * Penetration: 31.3 m * Recovery: 31 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 9 cores; 31.3 m cored; 0 m drilled; 98.9 % recovery
Comment:
Oxygen isotopic measurements were carried out at the University of Tuebingen, using splits of the whole-rock powders analyzed for Sr. Oxygen was extracted using the bromine pentafluoride procedure (Clayton and Mayeda, 1963; doi:10.1016/0016-7037(63)90071-1). Oxygen isotopic compositions are reported using normal delta-notation relative to SMOW (Standard Mean Ocean Water). The oxygen isotopic compositions of the carbonate component of pelagic oozes are reported relative to the SMOW and PDB standards, respectively. Routine reproducibility of delta 18O values is typically 0.15‰.
Sample preparations and methods for Pb and Sr isotope analyses see at doi:10.1594/PANGAEA.695904
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 | Barrett, T J | DSDP/ODP/IODP sample designation | ||
| 7 | Lithology/composition/facies | Lithology | Barrett, T J | |||
| 8 | Alteration | Alteration | Barrett, T J | |||
| 9 | Lead-206/Lead-204 ratio | 206Pb/204Pb | Barrett, T J | |||
| 10 | Lead-207/Lead-204 ratio | 207Pb/204Pb | Barrett, T J | |||
| 11 | Lead-208/Lead-204 ratio | 208Pb/204Pb | Barrett, T J | |||
| 12 | Rubidium | Rb | mg/kg | Barrett, T J | X-ray fluorescence on pressed powder | |
| 13 | Strontium | Sr | mg/kg | Barrett, T J | X-ray fluorescence on pressed powder | |
| 14 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Barrett, T J | |||
| 15 | Strontium-87/Strontium-86 ratio, error | 87Sr/86Sr e | ± | Barrett, T J | ||
| 16 | δ18O | δ18O | ‰ | Barrett, T J |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
52 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Depth sed [m] | 6 Sample label | 7 Lithology | 8 Alteration | 9 206Pb/204Pb | 10 207Pb/204Pb | 11 208Pb/204Pb | 12 Rb [mg/kg] | 13 Sr [mg/kg] | 14 87Sr/86Sr | 15 87Sr/86Sr e [±] | 16 δ18O [‰] |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 70-506G | 0.6098 | -86.0915 | -2703.0 | 29.82 | 506G-2-1 (piece 4, 30-33 cm) | fine-grained sparsely plagioclase-clinopyroxene phyric basalt; margin of pillow | greenish to brownish to near-colourless smectites replacing olivine and glass, and as vesicle fillings | 18.187 | 15.520 | 37.763 | 0.6 | 60.4 | 0.70275 | 0.00005 | 5.8 |
| 70-507B | 0.5667 | -86.0900 | -2691.0 | 31.48 | 507B-1-1 (piece 24, 46-50 cm) | coarse-grained subophitic basalt; thin flow (~50 cm) thick; sample from middle | nil | 18.621 | 15.578 | 38.097 | 0.3 | 63.6 | 0.70256 | 0.00005 | 5.9 |
| 70-507F | 0.5667 | -86.0900 | -2695.0 | 31.30 | 507F-9CC | glass fragments, presumably from pillow margin | nil | 18.366 | 15.532 | 38.018 | 1.3 | 59.6 | 5.7 | ||
| 70-508B | 0.5333 | -86.1000 | -2777.0 | 57.54 | 508B-4-1 (piece 44, 3-6 cm) | fine-grained aphyric basalt; probably margin of pillow | greenish to brownish to near-colourless smectites replacing olivine and glass, and as vesicle fillings | 18.348 | 15.565 | 37.904 | 4.1 | 60.0 | 0.70278 | 0.00007 | |
| 70-510 | 1.6132 | -86.4100 | -2781.0 | 132.20 | 510-11-1 (piece 128, 66-70 cm) | medium-grained moderately plagioclase phyric basalt; sample from ~25 cm below flow top | greenish to brownish to near-colourless smectites replacing olivine and glass, and as vesicle fillings | 18.035 | 15.529 | 37.653 | 0.0 | 46.2 | 0.70263 | 0.00006 | 5.8 |