Fig 1
Deep-sea basalt region for CO2 sequestration on Juan de Fuca plate. Red outline shows the region where water depths are ≥2,700 m and sediment thickness is ≥200 m, covering an area of 78,000 km2. Hatched region shows the decrease in area having ≥300 m sediment cover, resulting in a total area of 68,000 km2. Heavy black line indicates the location of a single-channel seismic profile through potential CO2 injection zones (R/V Conrad line 1501, Inset Top Left). [Goldberg, D. S., T. Takahashi, & A. L. Slagle (2008), PNAS 105(29)]