DData were recorded with a 1 ms sample rate and correlated to a 1 sec record, recorded on 60 channels. Geophones were 28 Hz single-component, vertical sensors in groups of 3 per station. Station interval was 5 m. Source was 3 gas powered tampers operated in a pseudo-random manner (Mini-Sosie). Shot interval was 5 m.
Notes
Data will not be restricted. USGS Open-File Report: 2000-106