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U.S. Geological Survey Open-File Report 2009-1151

Continuous Resistivity Profiling and Seismic-Reflection Data Collected in 2006 from the Potomac River Estuary, Virginia and Maryland

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Figure 7, photograph of electronic instruments and computers.
Figure 7. The seismic data acquisition system included a real-time data display and processors shown here. Photo by John Bratton, USGS-GD-WHCMSC.
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