Kutsukake, Hiroshi (1983): (Table 2) Dissolution rate of sediments at DSDP Site 70-506 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816188, Supplement to: Kutsukake, H (1983): The measurement of dissolution rates of synthetic calcite and calcareous ooze from Deep Sea Drilling Project Site 506. In: Honnorez, J; Von Herzen, RP; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 70, 369-372, https://doi.org/10.2973/dsdp.proc.70.121.1983
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Abstract:
Dissolution rates of calcareous ooze were measured for samples from Deep Sea Drilling Project (DSDP) Site 506, which is in the area of the Galapagos Spreading Center. Using the free-drift method, measurements were carried out at 25 °C and atmospheric pressure. No significant difference in dissolution rates was found among the samples from three holes. However, in the present samples, the concentration of carbonate ion in seawater that is in equilibrium with calcite is 20 to 30% greater than is the case with synthetic calcite. That is, the dissolution rate of calcite under nearequilibrium conditions is greater than that of either synthetic calcite or sediments from the central Pacific (Morse, 1978). These results are consistent with field evidence indicating that the calcium carbonate compensation depth in the Galapagos region is shallower than in most other Pacific regions (Berger et al., 1976).
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 0.610000 * Median Longitude: -86.095550 * South-bound Latitude: 0.609800 * West-bound Longitude: -86.099800 * North-bound Latitude: 0.610200 * East-bound Longitude: -86.091300
Date/Time Start: 1979-11-15T00:00:00 * Date/Time End: 1979-11-15T00:00:00
Minimum Elevation: -2711.0 m * Maximum Elevation: -2710.0 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
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Kutsukake, Hiroshi | DSDP/ODP/IODP sample designation | ||
| 3 | pH | pH | Kutsukake, Hiroshi | see reference(s) | ||
| 4 | Dissolution rate | Diss rate | %/day | Kutsukake, Hiroshi | see reference(s) | |
| 5 | Carbon dioxide, partial pressure | pCO2 | µatm | Kutsukake, Hiroshi | see reference(s) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
84 data points
Data
| 1 Event | 2 Sample label | 3 pH | 4 Diss rate [%/day] | 5 pCO2 [µatm] |
|---|---|---|---|---|
| 70-506 | 70-506-2-2 | 6.990 | 18.03 | 12000 |
| 70-506 | 70-506-2-2 | 7.011 | 17.40 | 12000 |
| 70-506 | 70-506-2-2 | 7.031 | 14.00 | 12000 |
| 70-506 | 70-506-2-2 | 7.052 | 8.72 | 12100 |
| 70-506 | 70-506-2-2 | 7.072 | 11.20 | 12000 |
| 70-506 | 70-506-2-2 | 7.092 | 5.56 | 12100 |
| 70-506 | 70-506-2-2 | 7.112 | 2.46 | 12100 |
| 70-506 | 70-506-2-2 | 7.120 | 2.44 | 12100 |
| 70-506B | 70-506B-2-2 | 7.030 | 32.60 | 11900 |
| 70-506B | 70-506B-2-2 | 7.050 | 14.96 | 12000 |
| 70-506B | 70-506B-2-2 | 7.070 | 9.42 | 12000 |
| 70-506B | 70-506B-2-2 | 7.090 | 14.02 | 12000 |
| 70-506B | 70-506B-2-2 | 7.110 | 5.85 | 12000 |
| 70-506B | 70-506B-2-2 | 7.120 | 4.20 | 12100 |
| 70-506B | 70-506B-3-2 | 7.060 | 7.75 | 11700 |
| 70-506B | 70-506B-3-2 | 7.080 | 14.03 | 11600 |
| 70-506B | 70-506B-3-2 | 7.100 | 13.06 | 11600 |
| 70-506B | 70-506B-3-2 | 7.120 | 3.73 | 11800 |
| 70-506B | 70-506B-3-2 | 7.140 | 2.89 | 11800 |
| 70-506B | 70-506B-3-2 | 7.160 | 2.24 | 11800 |
| 70-506B | 70-506B-3-2 | 7.180 | 0.87 | 11800 |