Seismic refraction data is collected from geophones that record the arrival of energy sent through the shallow subsurface by sledgehammer blows at the surface. Alec Spears (left) and Troy Covill ...

THE experiments of Hill and Swallow 1 in August 1949 showed that the method of seismic refraction shooting at sea, which had been developed at Cambridge, was suitable for deep ocean work. Effort ...

New Zealand Oil & Gas has commenced a seismic refraction survey program near Waikawau in the northern onshore Taranaki Basin. This survey is to delineate the more than 70 million barrels potential ...

Seismic refraction data is collected from geophones that record the arrival of energy sent through the shallow subsurface by sledge hammer blows at the surface.