Special Holes
For data from all expeditions, see the LIMS Ocean Drilling Data Overview.
Gas hydrates
| Leg | Site | Hole | Special Hole Type | Location | Latitude | Longtitude | Water Depth | Total Penetration (m) | Basement Penetration (m) | Casing (m) | Special Hole Comment |
| 66 | 490 | * | Gas Hydrate | 16 10'N | 99 3'W | 1761 | 588 | ||||
| 76 | 533 | * | Gas Hydrate | 31 16'N | 74 52'W | 3191 | 168 | ||||
| 84 | 570 | * | Gas Hydrate | 13 17'N | 91 24'W | 1698 | 402 | ||||
| 112 | 685 | A | Gas Hydrate | 9 7'S | 80 35'W | 5093 | 469 | ||||
| 112 | 688 | A | Gas Hydrate | 11 32'S | 78 57'W | 3827 | 350 | core 15X | |||
| 131 | 808 | F | Gas Hydrate | 32 21'N | 134 57'E | 4684 | 140 | Small amount present in wash core | |||
| 146 | 892 | A | Gas Hydrate | 44 40'N | 125 7'W | 674 | 176 | ||||
| 146 | 892 | D | Gas Hydrate | 44 40'N | 125 7'W | 670 | 166 | ||||
| 146 | 892 | E | Gas Hydrate | 44 40'N | 125 7'W | 674 | 55 | ||||
| 164 | 994 | C | Gas Hydrate | 31 47'N | 75 33'W | 2799 | 704 | ||||
| 164 | 994 | D | Gas Hydrate | 31 47'N | 75 33'W | 2799 | 415 | ||||
| 164 | 996 | A | Gas Hydrate | 32 30'N | 76 11'W | 2170 | 63 | ||||
| 164 | 996 | B | Gas Hydrate | 32 30'N | 76 11'W | 2173 | 3 | ||||
| 164 | 996 | C | Gas Hydrate | 32 30'N | 76 11'W | 2171 | 3 | ||||
| 164 | 996 | D | Gas Hydrate | 32 30'N | 76 11'W | 2170 | 52 | ||||
| 164 | 996 | E | Gas Hydrate | 32 30'N | 76 11'W | 2170 | 62 | ||||
| 164 | 997 | A | Gas Hydrate | 31 51'N | 75 28'W | 2770 | 434 | ||||
| 201 | 1230 | A | Gas Hydrate | 9 7'S | 80 35'W | 5086 | 278 | ||||
| 201 | 1230 | B | Gas Hydrate | 9 7'S | 80 35'W | 5086 | 105 | ||||
| 204 | 1244 | C | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 7'W | 895 | 334 | |||
| 204 | 1244 | E | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 7'W | 893 | 250 | |||
| 204 | 1245 | B | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 9'W | 870 | 474 | |||
| 204 | 1245 | C | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 9'W | 869 | 202 | |||
| 204 | 1246 | B | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 8'W | 849 | 137 | |||
| 204 | 1247 | B | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 9'W | 834 | 220 | |||
| 204 | 1248 | B | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 830 | 17 | |||
| 204 | 1248 | C | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 830 | 149 | |||
| 204 | 1249 | B | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 778 | 75 | |||
| 204 | 1249 | C | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 778 | 90 | |||
| 204 | 1249 | D | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 777 | 18 | |||
| 204 | 1249 | E | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 777 | 11 | |||
| 204 | 1249 | F | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 777 | 90 | |||
| 204 | 1249 | J | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 777 | 32 | |||
| 204 | 1250 | C | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 796 | 145 | |||
| 204 | 1250 | D | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 796 | 145 | |||
| 204 | 1250 | E | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 796 | 16 | |||
| 204 | 1250 | F | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 9'W | 795 | 180 | |||
| 204 | 1251 | D | Gas Hydrate | Cascadia Continental Margin | 44 34'N | 125 4'W | 1210 | 230 | |||
| 204 | 1252 | A | Gas Hydrate | Cascadia Continental Margin | 44 35'N | 125 6'W | 1039 | 260 | |||
| 311 | U1325 | B | Gas Hydrate | Cascadia Continental Margin | 48 38.7'N | 126 58.9'W | 2195 | 206.5 | |||
| 311 | U1325 | C | Gas Hydrate | Cascadia Continental Margin | 48 38.7'N | 126 58.9'W | 2195 | 304.3 | |||
| 311 | U1326 | C | Gas Hydrate | Cascadia Continental Margin | 48 37.6'N | 127 03'W | 1828 | 86.7 | |||
| 311 | U1326 | D | Gas Hydrate | Cascadia Continental Margin | 48 37.6'N | 127 03'W | 1828 | 300 | |||
| 311 | U1327 | C | Gas Hydrate | Cascadia Continental Margin | 48 41.9'N | 126 51.9'W | 1304 | 300 | |||
| 311 | U1327 | D | Gas Hydrate | Cascadia Continental Margin | 48 41.9'N | 126 51.9'W | 1304 | 300 | |||
| 311 | U1328 | C | Gas Hydrate | Cascadia Continental Margin | 48 40'N | 126 51'W | 1267 | 300 | |||
| 311 | U1328 | D | Gas Hydrate | Cascadia Continental Margin | 48 40'N | 126 51'W | 1266 | 15 | |||
| 311 | U1328 | E | Gas Hydrate | Cascadia Continental Margin | 48 40'N | 126 51'W | 1264 | 235 | |||
| 311 | U1329 | C | Gas Hydrate | Cascadia Continental Margin | 48 47.3'N | 126 40.7'W | 946 | 189 | |||
| 311 | U1329 | E | Gas Hydrate | Cascadia Continental Margin | 48 47.3'N | 126 40.7'W | 945 | 127 | |||