Asked by Queen_Red
Describe three main types of stress/pressure on Earth's crust
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GPT-4o mini
Earth's crust experiences three main types of stress/pressure:
1. **Tensional Stress**: This type of stress occurs when forces pull the crust apart. It typically happens at divergent boundaries, where tectonic plates are moving away from each other, such as at mid-ocean ridges. Tensional stress can lead to the formation of faults and rift valleys, as the crust stretches and thins.
2. **Compressive Stress**: Compressive stress occurs when forces push the crust together. This type of stress is commonly found at convergent boundaries, where tectonic plates collide. The immense pressure can cause the crust to fold and create mountain ranges, as well as forming thrust faults where one block of crust is pushed over another.
3. **Shear Stress**: Shear stress happens when forces slide past each other horizontally. This type of stress is often observed at transform boundaries, where tectonic plates move sideways. Shear stress can lead to the development of strike-slip faults, which can cause earthquakes as the built-up stress is released.
These types of stress impact the geological features of the Earth and can give rise to various geological phenomena, including earthquakes, mountain building, and deformation of rocks.
1. **Tensional Stress**: This type of stress occurs when forces pull the crust apart. It typically happens at divergent boundaries, where tectonic plates are moving away from each other, such as at mid-ocean ridges. Tensional stress can lead to the formation of faults and rift valleys, as the crust stretches and thins.
2. **Compressive Stress**: Compressive stress occurs when forces push the crust together. This type of stress is commonly found at convergent boundaries, where tectonic plates collide. The immense pressure can cause the crust to fold and create mountain ranges, as well as forming thrust faults where one block of crust is pushed over another.
3. **Shear Stress**: Shear stress happens when forces slide past each other horizontally. This type of stress is often observed at transform boundaries, where tectonic plates move sideways. Shear stress can lead to the development of strike-slip faults, which can cause earthquakes as the built-up stress is released.
These types of stress impact the geological features of the Earth and can give rise to various geological phenomena, including earthquakes, mountain building, and deformation of rocks.
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