* Erosion: This is the process of wearing down and transporting rock material by wind, water, or ice. It changes the shape and size of rocks, but not their fundamental composition.
* Weathering: This is the process of breaking down rocks into smaller pieces through exposure to the elements. While it alters the appearance of rocks, it doesn't change their chemical makeup.
* Transportation: The movement of rocks by wind, water, or ice doesn't change their form.
These processes are important in the rock cycle, but they are not involved in the formation of new rock types.
Here are some processes that do change the form of existing rock:
* Metamorphism: This involves changing the existing rock's texture, mineralogy, and sometimes chemical composition due to intense heat and pressure. This process can create entirely new rock types from existing ones.
* Magmatism: This involves the formation of magma (molten rock) and its subsequent cooling and solidification, creating igneous rocks.
* Sedimentation: This involves the deposition of sediments (pieces of weathered rocks) that eventually compact and cement together to form sedimentary rocks.
Let me know if you have any other questions about the rock cycle!
