Kawahata, Hodaka; Kusakabe, Minoru; Kikuchi, Yoshiko (1987): (Table 1) Properties and hydrothermal alteration of DSDP Hole 504B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.712349, In supplement to: Kawahata, H et al. (1987): Strontium, oxygen, and hydrogen isotope geochemistry of hydrothermally altered and weathered rocks in DSDP Hole 504B, Costa Rica Rift. Earth and Planetary Science Letters, 85(4), 343-355, https://doi.org/10.1016/0012-821X(87)90132-4
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 1.227133 * Median Longitude: -83.730133 * South-bound Latitude: 1.227000 * West-bound Longitude: -83.730200 * North-bound Latitude: 1.227200 * East-bound Longitude: -83.730000
Date/Time Start: 1979-10-07T00:00:00 * Date/Time End: 1982-01-02T00:00:00
Minimum DEPTH, sediment/rock: 412 m * Maximum DEPTH, sediment/rock: 1200 m
Event(s):
69-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time: 1979-10-07T00:00:00 * Elevation: -3460.0 m * Penetration: 489 m * Recovery: 262 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
70-504B * Latitude: 1.227000 * Longitude: -83.730000 * Date/Time: 1979-12-04T00:00:00 * Elevation: -3460.0 m * Penetration: 836.1 m * Recovery: 91.6 m * Campaign: Leg70 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 328.6 m cored; 18.5 m drilled; 27.9 % recovery
83-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time Start: 1981-11-22T00:00:00 * Date/Time End: 1982-01-02T00:00:00 * Elevation: -3460.0 m * Penetration: 1350 m * Recovery: 107.7 m * Campaign: Leg83 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: Leg 83 of DSDP was devoted entirely to coring and experiments in Hole 504B, the deepest borehole to date into the oceanic crust. Hole 504B now extends over a kilometer into basement, nearly twice as far as any other DSDP hole, and it is the only DSDP hole to have clearly penetrated into the intrusive sheeted dikes that underlie the extrusive pillow lavas of the upper oceanic crust. At Hole 504B, Leg 83 continued an ongoing DSDP effort that began during Legs 68, 69, and 70 in 1979, and also included part of Leg 92 in 1983. 71 cores; 514 m cored; 0 m drilled; 21 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Depth, top/min | Depth top | m | Kawahata, Hodaka | ||
| 4 | Depth, bottom/max | Depth bot | m | Kawahata, Hodaka | ||
| 5 | Sample comment | Sample comment | Kawahata, Hodaka | |||
| 6 | Rock type | Rock | Kawahata, Hodaka | |||
| 7 | Alteration | Alteration | Kawahata, Hodaka | Alteration type | ||
| 8 | Comment | Comment | Kawahata, Hodaka | Alteration temperature | ||
| 9 | Minerals | Minerals | Kawahata, Hodaka | Secondary minerals |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
28 data points
Data
| 1 Event | 2 Depth sed [m] | 3 Depth top [m] | 4 Depth bot [m] | 5 Sample comment | 6 Rock | 7 Alteration | 8 Comment | 9 Minerals |
|---|---|---|---|---|---|---|---|---|
| 69-504B | 412 | 274 | 550 | Zone I | basalt | oxic weathering | low (0-30 C) | iddingsite, iron oxide, saponite |
| 70-504B | 720 | 550 | 890 | Zone II | basalt | anoxic alteration | low (0-60 C) | saponite |
| 83-504B | 970 | 890 | 1050 | Zone III | basalt dolerite | hydrothermal alteration | high (>200-350 C) | actinolite, chlorite, epidote, albite, quartz, laumonite, pyrite |
| 83-504B | 1200 | 1050 | 1350 | Zone IV | dolerite (basalt | hydrothermal alteration | high (>200-350 C) | actinolite, chlorite, epidote, albite, quartz, laumonite, pyrite |