Surface event that takes place during the rock cycle is the weathering.
The weathering is process in the rock cycle that takes place only on the surface. It is a process that causes the breakdown of the rocks, be it slowly and gradually, or very quickly and dramatically.
The weathering can be in multiple ways, with the physical weathering being the dominant one.
This process is later supported by the erosion, as it is the process that takes away the material that the weathering managed to break off.