Figure F8. Schematic diagram of a gun configuration as used during Leg 203. The gun used is a Sodera 210-in3 GI air gun operating in harmonic mode (redrawn from Seismic Systems Manual, 2000). Two hydrophones were suspended together with the gun. One was attached on the gun itself and the other ~2 m below it. When the gun fires, the emitted sound wave is recorded by the hydrophones as a break signal. The signal in the WST sonde geophone is recorded in full wave form. GI = generator-injector gun.

Figure F8. Schematic diagram of a gun configuration as used during Leg 203. The gun used is a Sodera 210-in³ GI air gun operating in harmonic mode (redrawn from Seismic Systems Manual, 2000). Two hydrophones were suspended together with the gun. One was attached on the gun itself and the other ~2 m below it. When the gun fires, the emitted sound wave is recorded by the hydrophones as a break signal. The signal in the WST sonde geophone is recorded in full wave form. GI = generator-injector gun.