there isn't a specific shape. but they are most always smooth
They have been deposited there after being weathered and eroded from their point of origin.
Sedimentary rocks are by definition composed of little pieces of eroded rocks. So, yes!
Yes, it was the flooding of the Colorado River.
The Colorado River gradually eroded the rocks, cutting the deep gorge we see today.
the rocks had eroded
Sedimentary rocks tend to be the most easily eroded by rivers due to their composition and structure, especially rocks like sandstone and shale. These rocks are often softer and more porous compared to igneous or metamorphic rocks, making them more susceptible to weathering and erosion processes.
Yes, clastic rocks are a type of sedimentary rock. They are formed from the accumulation of fragments of pre-existing rocks, minerals, and organic materials. The fragments, known as clasts, are compacted and cemented together to form a cohesive rock.
Yes, they can be eroded chemically and mechanically.
All types of rocks can be weathered and eroded. However, sedimentary rocks are typically more susceptible to weathering and erosion compared to igneous and metamorphic rocks due to their composition and structure.
rivers aren't permanently the same shape, through different methods rivers can be eroded and shaped over long periods of time. i will give four Hydraulic action, this is where the sheer force of the water forces the river side to be eaten away, this can be through cracks in rock or mud which the water is forced into which can then break off fragments. Attrition, this is where large objects such as mud or rocks smash together and break of fragments. Abrasion, this is where particulates such as sand or small stones are carried by the river and rubbed on the river walls, this works much like sandpaper and grinds away the river corrosion, this is where chemical substances in the water that are particularly caustic react and dissolve river walls and other substances
Igneous rock eroded in a river will eventually form sediment, which can be compacted and cemented to become sedimentary rock. Examples of sedimentary rocks include sandstone, shale, and limestone.
Yes. The Grand Canyon was eroded by the Colorado River.