Lasers, Software and the Devil's Slide (2 of 2) (IMAGE)

U.S. National Science Foundation

Lasers, Software and the Devil's Slide (2 of 2)

Caption

Close-up image of the tunnel roof showing a gVT measurement location. The arrow is a vector perpendicular to a surface that marks a discontinuity between rock layers. The orientation of the arrow in space gives the azimuth and slope of the surface.

Credit

Jeramy Decker, Kiewit Corp

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