Figure 2

Horizontal slice through 3-D GPR survey covering an area of 26.3 m x 30 m with a survey grid of 0.05 m x 0.10 m using 250 MHz GPR antennae.

On the right is interpretation based on rapid animation of neighboring timeslices. Yellow = outline of buried fault segment; red = fractures; green = topography related to buckling up of elsewhere horizontal strata on the fault's east side and slight depression to the west.

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Photo courtesy of Mark Grasmueck