Brittle–ductile transition zone

The brittle–ductile transition zone refers to a specific region within the Earth's crust where the behavior of materials changes from brittle to ductile as a function of depth, temperature, and pressure. ### Key Characteristics: 1. **Brittle Behavior**: At shallow depths, rocks tend to behave in a brittle manner, meaning they can fracture or break under stress without significant deformation. This is typically observed in the uppermost layers of the crust, where lower temperatures and pressures prevail.