. . . "1000 Hz top-bandwidth multi-channel seismic reflection systems"@en . . "accepted"@en . . "SDN:L05::364" . . . "" . . "An energy source with a frequency up to 1000 Hz (sampling interval ranging from 2-0.5 msec) plus a multiple strings of towed hydrophones (streamers) that determine geologic structure by detecting waves reflected by subsurface layers."@en . . . . . . . . . . . . . . . . . . . .