downward eclipse

side eclipse

traceable erosion

The essence of these three are water erosion, but the way to distinguish them is to look at their trends, which is the so-called different erosion directions.

Bottom transport (large particles): refers to the transportation of coarser materials such as sand and gravel in the river bed along the bottom of the river bed by rolling, sliding, dragging, and jumping.

Suspended transportation (small particles): refers to fine particles such as clay dust, which are transported in a suspended state due to the turbulence of flowing water.

Solution transportation: refers to the dissolution of soluble rocks and minerals in rivers and transportation in an ionic state.

All three belong to the transport function, but they show different ways due to the different sizes of transported materials.

Mechanical erosion (mainly)

abrasion

Chemical erosion

Mechanical sedimentation: Coarse gravel forms accumulation terrain along the coast, and finer silt clay is transported to the center of the lake to form accumulation.

chemical deposition

The above all belong to his sedimentation process, but different sedimentation processes are formed due to different climate and closing conditions.

wash away

Dissolution

According to deposition method

According to the location of chemical deposition

Coastal sediments (are coastal waters with strong wave and tidal movements)

shallow sea sediments

Semi-deep sea sediments

Deep sea sedimentation (calm water, low sediment supply and slow speed)

excavation

Abrasion

Blow (blow)

abrasion

Both are closely related to particle size and wind speed.

Suspension handling

Jump transfer

creeping transport

The transport effect is mainly related to particle size and wind speed.