Figure F1. A. Tectonic setting of the Cascadia margin and the location of Hydrate Ridge (Leg 204). B. Simplified west–east cross section through the Cascadia margin at 44°50´, ~20 km north of Hydrate Ridge (after Snavely, 1987; Snavely and Wells, 1996).

Figure F1. A. Tectonic setting of the Cascadia margin and the location of Hydrate Ridge (Leg 204). B. Simplified west–east cross section through the Cascadia margin at 44°50´, ~20 km north of Hydrate Ridge (after Snavely, 1987; Snavely and Wells, 1996).