Barrett, T J; Friedrichsen, Hans (1982): (Table 5) Oxygen- and hydrogen-isotopic compositions of metalliferous and pelagic sediments as well as nontronite formation temperatures in the Galapagos mounds area, DSDP Leg 70 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.695926, 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
Always quote citation above when using data! You can download the citation in several formats below.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 0.591650 * Median Longitude: -86.099100 * South-bound Latitude: 0.566700 * West-bound Longitude: -86.132200 * North-bound Latitude: 0.610200 * East-bound Longitude: -86.090000
Date/Time Start: 1979-11-15T00:00:00 * Date/Time End: 1979-11-27T00:00:00
Minimum DEPTH, sediment/rock: 1.53 m * Maximum DEPTH, sediment/rock: 28.77 m
Event(s):
70-506 * Latitude: 0.609800 * Longitude: -86.099800 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2710.0 m * Penetration: 36.7 m * Recovery: 22.7 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 27.9 m cored; 8.8 m drilled; 81.5 % recovery
70-506B * Latitude: 0.610200 * Longitude: -86.091300 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2711.0 m * Penetration: 20.7 m * Recovery: 20.2 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 6 cores; 20.7 m cored; 0 m drilled; 97.6 % recovery
70-506C * Latitude: 0.607700 * Longitude: -86.091300 * Date/Time: 1979-11-15T00:00:00 * Elevation: -2710.0 m * Penetration: 31.3 m * Recovery: 29.7 m * Location: North Pacific/MOUND * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 8 cores; 31.3 m cored; 0 m drilled; 95 % recovery
Comment:
Oxygen was extracted from whole-rock powders with use of the bromine pentafluoride procedure (Clayton & Mayeda, 1963; doi:10.1016/0016-7037(63)90071-1). The method described by Godfrey (1962; doi:10.1016/0016-7037(62)90053-4) was used to extract hydrogen. Oxygen- and hydrogen-isotopic compositions are reported using normal delta-notation relative to SMOW. The oxygen-isotopic composition of the carbonate component of pelagic oozes is reported relative to the SMOW standard. Routine reproducibilities of d18O- and dH2-values are typically 0.15 and 2 per mil, respectively. Temperatures of formation of nontronites have been estimated from the O-isotopic composition by applying the formula of Yeh and Savin (1977; doi:10.1130/0016-7606(1977)88<1321:MOBMOA>2.0.CO;2) for normal smectites (1000 ln a = 2.67 x 10**6 x T**(-2) - 4.82). It was assumed that the d18O-value for solutions from which the nontronite formed was 0.0, the value for normal seawater.
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 | δ18O | δ18O | ‰ | Barrett, T J | ||
| 9 | δ Deuterium | δD | ‰ SMOW | Barrett, T J | ||
| 10 | Temperature, calculated | T cal | °C | Barrett, T J |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
86 data points