Horizontal component of head waves

From SEG Wiki
Jump to navigation Jump to search

Problem 5.11

In the early days of refraction exploration for salt domes, sketches of expected raypaths indicated that the angle of approach to the surface should have a large horizontal component, but measurements showed very little horizontal component. Controversy arose over whether the travelpaths could be as drawn. Explain the apparent discrepancy.

Solution

The raypath bending at the base of the low-velocity layer made travel through the LVL nearly vertical, as illustrated in problem 5.10a so the horizontal component at the surface was very small.

Continue reading

Previous section Next section
Effects of weathered layer (LVL) and permafrost Stacking velocity versus rms and average velocities
Previous chapter Next chapter
Geometry of seismic waves Characteristics of seismic events

Table of Contents (book)

Also in this chapter

External links

find literature about
Horizontal component of head waves
SEG button search.png Datapages button.png GeoScienceWorld button.png OnePetro button.png Schlumberger button.png Google button.png AGI button.png