Preliminary Figure: a) Chapter 1: Opal-A/Opal-CT Diagenetic front across the New Jersey Continental Slope. b) Chapter 2: Bottom Simulating Reflector indicating the presence of Gas Hydrates across the Blake Ridge. c) Chapter 3: Acoustic impedance changes in a producing reservoir, Eugene Island 330, Gulf of Mexico. d) Chapter 4: Temperature distribution in an active fault zone, Eugene Island 330.