Question

A set of sedimentary rocks A, B, and C are affected by a fault F-F. The amount of vertical throw (in m) along the fault is ............ 

Hint:

The vertical throw of a fault is calculated by subtracting the elevation of one bed from the elevation of the other bed along the fault line.

Answer 1

Correct Answer: 100

Step 1: Understanding the fault and vertical throw.
The vertical throw of a fault is the vertical displacement between two layers along the fault plane. To calculate the vertical throw, we need to look at the displacement between the beds at locations B and C. From the diagram, we see that the beds at location B are at 500m and the beds at location C are at 400m. The vertical throw is simply the difference in elevation between these two points: \[ \text{Vertical throw} = 500\,m - 400\,m = 100\,m \] Thus, the vertical throw along the fault is 100 m.