All I know is it either could be deposit, hydraulic action, erosion, attrition, abrasion, transport, longshore drift.
Detrital rocks are formed from sedimentation of loose particles of rocks that are worn away from rocks from a different location.
The term erosion could be applied to the weathering of the surface of the earth. As water and the particulate matter it carries sweep over rocks, the softer ones will be worn away, will erode, more quickly than the harder ones. In the event of violent flooding when a massive increase in water flow churns river beds, rocks can be picked up and slammed together. Again it will be the softer materials that will be broken up more than the harder ones.
Yes
by erosion
weathering
Centuries of erosion by wind have worn away the rocks.
Rocks are worn away through the process of weathering and erosion. Weathering is the breaking down of rocks into smaller pieces while erosion is what carries the rock to new places. Rocks can be worn away by water, ice, and wind. Examples of this are abrasion, ice wedging, and dissolution.
Erosion
Detrital rocks are formed from sedimentation of loose particles of rocks that are worn away from rocks from a different location.
Rocks wear away because slowly,wind/water take away tiny pieces of dust and slowly it gets worn away.
"erosion"
A boot is worn on the foot.
Erosion.
Weathering and erosion.
Many events affect the shape of rocks. They are melted by the heat of the Earth's interior, they are broken by various impacts, and worn away by rubbing against other rocks, etc.
As slate is a metamorphic rock, it can't be worn easily. I t would be harder to wear than igneous or sedimentary rocks.
Differential weathering