1. Exercise 6b: Frequency & Wavelength
SLIDE 20
For Exercise 6b, we will use this seismic section
There are blow-ups of 2 windows
We want you to calculate the frequency and wavelength of the seimic in each window
The relevant equations are in the upper right
We get the apparent (observed) frequency for each window by counting the number of cycles (1 cycle = a black followed by a white) over a certain time interval (e.g., how many black-white couplets occur over 0.1 seconds)
We have an empirical formula to get the dominant frequency given the apparent frequency
Once we have the dominant frequency, we can calculate the wavelength () using the third equation
Give the students a little introduction to the exercise, and then some time to calculate
Courtesy of ExxonMobil
L 6 – Seismic Reflections