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Instructions for drawing reflection raypaths on a geophysics lab diagram, deriving the non-approximated reflection time equation using pythagora's theorem, and discussing the differences between two-way traveltime and nmo terms. It also covers the approximated nmo equation, calculating layer velocities from reflection hyperbolas, and the reasons why a seismic section is not a true image of the subsurface.
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Normal Move Out: Geophysics Lab Draw a reflection raypath on the following diagram and label the vertices and angles of the two right triangles formed by the raypath. Derive the nonโapproximated reflection time equation using Pythagoraโs theorem (Eqn. 7.1). Assume an upper layer velocity and thickness of v 1 and h 1. S R