Table T2. Hole locations during Expedition 301 and related proposed site locations.
Site/Hole | Latitude | Longitude | Seismic line | CDP/TR |
---|---|---|---|---|
Hole U1301A | 47°45.210'N | 127°45.833'W | GeoB 00-466 | CDP 557 |
Hole U1301B | 47°45.228'N | 127°45.827'W | GeoB 00-466 | CDP 556 |
Hole U1301C | 47°45.280'N | 127°45.800'W | GeoB 00-468 | CDP 388 |
Hole U1301D | 47°45.279'N | 127°45.786'W | GeoB 00-468 | CDP 390 |
Hole U1026B | 47°45.757'N | 127°45.548'W | GeoB 00-203 | CDP 962 |
Hole U1027C | 47°45.387'N | 127°43.867'W | GeoB 00-203 | CDP 741 |
SR-2A | 47°45.662'N | 127°45.674'W | GeoB 00-482 | CDP 439 |
FR-1A, C | 47°54.105'N | 128°33.468'W | InLine 44 (GeoB 00-365) | TR 426 |
FR-1B | 47°54.132'N | 128°33.591'W | InLine 44 (GeoB 00-365) | TR 410 |
DR-1A | 47°38.810'N | 127°26.999'W | EW0702 Line 1 | CDP 3070 |
DR-2A | 47°37.449'N | 127°20.049'W | EW0702 Line 1 | CDP 1720 |
Notes: CDP = common depth point, TR = trace within 3-D seismic grid. Hole U1301B is offset 35 m on a heading of 13° from Hole U1301A. This offset is oblique to the strike of seismic Line GeoB00-466. The along-line distance is roughly equivalent to one shotpoint, as listed. Hole U1301C is offset 101 m on a heading of 19° from Hole U1301B. This offset places the hole slightly south of seismic Line GeoB00-468. The closest approach is 20 m offset from CDP 390, as listed. Hole U1301D was positioned 18 m on a heading of 96° from Hole U1301C. Position for Hole 1026B has been revised relative to that reported during Leg 168. The difference (6.6 m) is attributed to improvements in the quality of commercially available differential Global Positioning System data during the 8 y between these expeditions. Work at Site SR-2 and Hole 1027C is planned for another drilling expedition to be scheduled. Sites FR-1A, FR-1B, DR-1A, and DR-2A were second-priority sites for Expedition 301 and are to be second-priority objectives for the second drilling expedition as well.