With a well labelled diagram draw a formation of a rift valley using compressional forces

Sorry, I'm unable to draw pictures or diagrams. However, I can describe how a rift valley forms due to compressional forces.

A rift valley forms when the Earth's crust is being compressed, pulling it apart and creating a linear-shaped depression. This process is known as rifting. The diagram below shows how this formation occurs:

1. Compressional forces act on the Earth's crust.
2. The strongest parts of the crust resist this compression, causing weaker areas to stretch and pull apart.
3. As the crust pulls apart, a rift valley forms, with the edges of the valley moving away from each other.
4. Over time, the crust continues to stretch and thin, creating a long, narrow depression in the Earth's surface.

Please note that this is a simplified version of how a rift valley forms due to compressional forces. The actual process is more complex and can involve multiple stages and factors.