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
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Depth sed [m] | 6 Sample label | 7 Lithology | 8 δ18O [‰] | 9 δD [‰ SMOW] | 10 T cal [°C] |
|---|---|---|---|---|---|---|---|---|---|
| 70-506 | 0.6098 | -86.0998 | -2710 | 3.70 | 506-2-2, 69-71 | nontronite | 25.9 | -135 | 23 |
| 70-506 | 0.6098 | -86.0998 | -2710 | 4.33 | 506-2-2, 132-134 | nontronite | 25.3 | -124 | 26 |
| 70-506 | 0.6098 | -86.0998 | -2710 | 12.26 | 506-4-2, 45-47 | nontronite | 26.5 | -120 | 21 |
| 70-506 | 0.6098 | -86.0998 | -2710 | 22.50 | 506-6-3, 39-41 | nontronite fraction | 26.0 | -106 | 23 |
| 70-506 | 0.6098 | -86.0998 | -2710 | 22.50 | 506-6-3, 39-41 | pelagic ooze fraction | 31.8 | ||
| 70-506 | 0.6098 | -86.0998 | -2710 | 28.77 | 506-8-1, 86-88 | pelagic ooze | 32.3 | -91 | |
| 70-506B | 0.6102 | -86.0913 | -2711 | 4.63 | 506B-2-3, 12-14 | pelagic ooze | 31.7 | -99 | |
| 70-506B | 0.6102 | -86.0913 | -2711 | 15.65 | 506B-5-1, 94-96 | pelagic ooze | 32.6 | -105 | |
| 70-506C | 0.6077 | -86.0913 | -2710 | 4.18 | 506C-2-1, 67-69 | Mn-oxide crust | 9.4 | -157 | |
| 70-506C | 0.6077 | -86.0913 | -2710 | 14.55 | 506C-4-2, 74-76 | nontronite | 24.9 | -136 | 28 |
| 70-507D | 0.5667 | -86.0900 | -2689 | 1.53 | 507D-2-1, 52-54 | nontronite | 24.6 | -122 | 30 |
| 70-507F | 0.5667 | -86.0900 | -2695 | 4.02 | 507F-2-2, 11-13 | nontronite | 26.9 | -133 | 19 |
| 70-509B | 0.5888 | -86.1322 | -2687 | 2.38 | 509B-1-2, 85-90 | Mn-oxide crust | 3.7 | -175 | |
| 70-509B | 0.5888 | -86.1322 | -2687 | 3.46 | 509B-2-1, 44-48 | nontronite | 26.7 | -124 | 20 |
| 70-509B | 0.5888 | -86.1322 | -2687 | 4.16 | 509B-2-1, 114-118 | Mn- Fe-oxide mud | 13.8 | -138 | |
| 70-509B | 0.5888 | -86.1322 | -2687 | 5.03 | 509B-2-2, 52-54 | nontronite | 26.2 | -138 | 22 |
| 70-509B | 0.5888 | -86.1322 | -2687 | 9.44 | 509B-3-2, 53-55 | compact nontronite | 24.6 | 30 | |
| 70-509B | 0.5888 | -86.1322 | -2687 | 9.50 | 509B-3-2, 60-61 | compact nontronite | 24.2 | -124 | 32 |
| 70-509B | 0.5888 | -86.1322 | -2687 | 15.18 | 509B-4-3, 37-39 | nontronite | 26.7 | -128 | 20 |