The interactions at tectonic plate boundaries can lead to various geological features and phenomena, depending on the type of boundary involved:
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Colliding Plates (Convergent Boundaries):
- When two tectonic plates collide, they create convergent boundaries. This can lead to:
- Subduction Zones: One plate is forced below another, which can lead to the formation of deep ocean trenches and volcanic arcs (e.g., the Cascade Range in the Pacific Northwest).
- Mountain Ranges: Continental plates can collide and push up mountains (e.g., the Himalayas formed from the collision of the Indian and Eurasian plates).
- When two tectonic plates collide, they create convergent boundaries. This can lead to:
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Sliding Past Each Other (Transform Boundaries):
- When plates slide past each other horizontally, they form transform boundaries. This interaction can lead to:
- Earthquakes: The friction along the edges where the plates meet can cause stress that builds up until it is released as an earthquake (e.g., the San Andreas Fault in California).
- When plates slide past each other horizontally, they form transform boundaries. This interaction can lead to:
In summary, colliding plates can result in phenomena like mountain ranges and subduction zones, while sliding plates can lead to significant earthquake activity.