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Kansas Geological Survey, Open File Report 98-48
GEMS Site Borehole GPR, continued

Figure 7

Frequency spectra of Survey 2 GPR zero-offset profiles using (a) 50 MHz, and (b) 200 MHz borehole GPR antennas. The vertical axis is frequency in megahertz, and the horizontal axis is depth from the well-top. The antennas were 9.66 m apart. A small version of this figure is available.

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Kansas Geological Survey, Oil and Gas Information
Updated Nov. 17, 1998
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