Kvenvolden, Keith A; McDonald, Thomas J (1985): (Table 2) Description of gas hydrates encountered on DSDP Leg 84 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.804299, In supplement to: Kvenvolden, KA; McDonald, TJ (1985): Gas hydrates of the Middle America Trench - Deep Sea Drilling Project Leg 84. In: von Heune, R; Aubouin, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 84, 667-682, https://doi.org/10.2973/dsdp.proc.84.123.1985
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 12.028567 * Median Longitude: -89.427833 * South-bound Latitude: 9.728200 * West-bound Longitude: -91.392800 * North-bound Latitude: 13.285300 * East-bound Longitude: -86.090700
Date/Time Start: 1982-01-13T00:00:00 * Date/Time End: 1982-02-17T00:00:00
Minimum DEPTH, sediment/rock: 192.0 m * Maximum DEPTH, sediment/rock: 404.0 m
Event(s):
84-565 * Latitude: 9.728200 * Longitude: -86.090700 * Date/Time: 1982-01-13T00:00:00 * Elevation: -3099.0 m * Penetration: 328.3 m * Recovery: 286.8 m * Location: North Pacific/TRENCH * Campaign: Leg84 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 34 cores; 324.3 m cored; 0 m drilled; 88.4 % recovery
84-568 * Latitude: 13.072200 * Longitude: -90.800000 * Date/Time: 1982-02-08T00:00:00 * Elevation: -2010.0 m * Penetration: 417.7 m * Recovery: 307.6 m * Location: North Pacific/SLOPE * Campaign: Leg84 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 43 cores; 408 m cored; 9.7 m drilled; 75.4 % recovery
84-570 * Latitude: 13.285300 * Longitude: -91.392800 * Date/Time: 1982-02-17T00:00:00 * Elevation: -1698.0 m * Penetration: 401.9 m * Recovery: 164.5 m * Location: North Pacific/SLOPE * Campaign: Leg84 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 40 cores; 382.6 m cored; 19.3 m drilled; 43 % recovery
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 | Sample code/label | Sample label | Kvenvolden, Keith A | DSDP/ODP/IODP sample designation | ||
| 6 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 7 | Depth, top/min | Depth top | m | Kvenvolden, Keith A | ||
| 8 | Depth, bottom/max | Depth bot | m | Kvenvolden, Keith A | ||
| 9 | Description | Description | Kvenvolden, Keith A |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
28 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Sample label | 6 Depth sed [m] | 7 Depth top [m] | 8 Depth bot [m] | 9 Description |
|---|---|---|---|---|---|---|---|---|
| 84-565 | 9.7282 | -86.0907 | -3099 | 84-565-30-6 | 285.0 | White, frothing gas hydrate (about 0.3 cm**3) was observed through the core liner in a region of degassing sediment. Two pieces were recovered but they decomposed before appropriate measurements could be made | ||
| 84-565 | 9.7282 | -86.0907 | -3099 | 84-565-33-CC | 319.0 | Pieces of muddy, gas-releasing sandstone were expelled from the end of the core barrel. When broken open, the sandstone showed increased evolution of gas | ||
| 84-565 | 9.7282 | -86.0907 | -3099 | 84-565-33-CC | 319.0 | White, frothing gas hydrate (about 1.5 cm**3) was recovered from stiff mud at top of core catcher; sample used for gas analysis | ||
| 84-568 | 13.0722 | -90.8000 | -2010 | 84-568-43-4 | 404.0 | White gas hydrate was recovered from fractures in a tuffaceous mudstone (Fig. 8A); about 10.4 cm**3 used for gas analysis | ||
| 84-568 | 13.0722 | -90.8000 | -2010 | 84-568-43-4 | 404.0 | Same as above; sample had decomposed for about 15 min before gas analysis; about 7.1 cm**3 used for analysis | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-21-1 | 192.0 | Ash laminated with gas hydrate at top of core; about 32 cm**3 used for gas analysis | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-26-5 | 246.0 | White gas hydrate in fractures of mudstone | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-27-1 | 249.0 | White gas hydrate in fractures of dolomite; about 18 cm**3 used for analysis. This sample is at the base of the massive gas hydrate | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-27-1 | 249.0 | Massive gas hydrate about 1.05 m long. Sample of this gas hydrate decomposed in closed can. Gas was transferred to evacuated aluminum canister from which gas was removed for analysis | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-28 | 263.5 | 259 | 268 | White gas hydrate in fractures of mudstone |
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-29-3 | 273.0 | White gas hydrate in fractures of mudstone | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-32-4 | 303.0 | Gas hydrate associated with ash | ||
| 84-570 | 13.2853 | -91.3928 | -1698 | 84-570-36-1 | 338.0 | Gas hydrate associated with sand |