Cataclastic Metamorphism

Definition

Cataclastic metamorphism occurs when rocks are transformed due to intense pressure and friction, usually during tectonic movements like faulting.

Key Characteristics

• Grain Size: The rock grains are crushed and fragmented, resulting in a granular texture.
• High Pressure: Typically occurs in regions where tectonic plates collide, leading to increased stress on the rocks.

Example

• Fault Zones: In areas where two plates slide past each other, such as the San Andreas Fault, rocks can exhibit cataclastic features.

This type of metamorphism highlights how dynamic Earth processes can alter rock formations dramatically.