Abstract: The invention is a method of geophysical exploration using seismic methods. The receivers and the source are rotated to one another, such that the orthogonal excitations of the seismic source are readily differentiated. The differentiation of the differently excited energies can be accomplished in devolving the seismic events and reception of those events into a radial-tangential coordinate system for each receiver source pair. The differentiation of the differently aligned energies allows a greater insight into the volumetric study of the strata making up the prospect volume.

Abstract: The present invention provides an accelerated weight drop for use as a seismic energy source, a method for operating an accelerated weight drop for use as a seismic energy source, and a seismic survey system including the accelerated weight drop. The accelerated weight drop, among other elements, includes a strike plate positionable on a surface, and a striker positionable over the strike plate. The accelerated weight drop further includes a compressed gas spring configured to drive the striker toward the strike plate thus creating seismic waves within the surface, wherein the striker is slidably coupled to the compressed gas spring and the striker and the compressed gas spring rotatably coupled to the strike plate about an axis.

Abstract: The invention is a method of geophysical exploration using seismic methods. The receivers and the source are rotated to one another, such that the orthogonal excitations of the seismic source are readily differentiated. The differentiation of the differently excited energies can be accomplished in devolving the seismic events and reception of those events into a radial-tangential coordinate system for each receiver source pair. The differentiation of the differently aligned energies allows a greater insight into the volumetric study of the strata making up the prospect volume.

Abstract: The present invention provides a system for, and method of determining an azimuth of a seismic energy source. In one embodiment, the system includes a directional assembly having a mount configured to be coupled to a seismic energy source, a rotatable mass assembly coupled to the mount, a compass rose coupled to one of the mount or the rotatable mass assembly and a direction reference coupled to the other of the mount or the rotatable mass assembly. The compass rose is registered with the direction reference to provide a direction orientation of the rotatable mass assembly with respect to the mount.