This document discusses seismic refraction analysis, which uses the transmission of seismic waves through different subsurface layers to determine layer properties and depths. It explains key concepts like Snell's law, critical refraction angles, and travel time distance curves. The document also lists applications of seismic refraction including determining depths of weathering zones, groundwater tables, basements, Moho discontinuity, and faster subsurface units.

1. Seismic Refraction Amali
Prepared by: Dr. Amin E. Khalil

2. Snell' Law

3. Critical angle of refraction

4. Instrument
Recording station
Complete array

5. Layout

6. Raw Data

7. Refraction Wave path

8. Travel time distance curve

9. interpretation (2- Layer case)

10. Application
●
depth of weathering zone (used for statics
correction to seismic reflection data), i.e.,
depth to bedrock
●
depth of groundwater table
●
depth of basement
●
depth of Moho
●
depth of any faster unit

11. Thanks