Map showing the area where gas hydrates occur (yellow), the location of the 1995 Ocean Drilling Program transect, and the 3 features at which the scientists will conduct Alvin dives. Site 1 is the Cape Fear diapir, and Site 2 denotes the Blake Ridge diapir, which was previously explored during the 2001 NOAA Deep East 3 cruise. Site 3 is the Blake Ridge depression, a region of anomalous seafloor characterized by sediment waves.
