Weathering is the breakdown of rocks through physical or chemical processes, while erosion is the transportation of weathered sediments by natural agents such as water, wind, or glaciers. There are several types of water erosion that impact landforms, including splash erosion, sheet erosion, gully erosion, and coastal erosion caused by waves. Glaciers erode through plucking and abrasion, smoothing and polishing rock surfaces. Wind erosion can carry dust and sand, wearing away soft rocks and shaping dunes in deserts. Eroded materials are transported through processes like solution, suspension, traction, and saltation, with factors like particle size and environmental conditions influencing how far materials can be moved.

1. EROSION AND
TRANSPORTATION
By: Ma. Samantha Kaye Ibanez
Mary Sheen Gregorio

2. • Weathering is the
physical breakdown
and/or chemical
alteration of rocks by
several elements in the
environment.
• On the other hand,
erosion is the process of
transporting weathered
sediments by agents of
erosion to different place.
Is Erosion the same with Weathering?

3.  Weathered materials are moved
from the original site and transported
away by natural agents. These
agents derive the energy from the
sun through the water cycle and
through the differential heating.

4. AGENTS OF EROSION

5. WATER EROSION
• Water erosion occurs from the chemicals in the
water, and the force of the flow of water in the
river.
• There are many chemicals in the water of a river,
and those chemicals can break down certain
rocks, such as limestone or chalk. This eroded
rock is carried down the river.

6. There are different types of water erosion that
affects landforms:
1. Splash erosion - raindrops cause tiny particles of soil to
be detached and to move out.

7. 2. Sheet erosion - raindrops break apart the soil structure
which moves down the slope as water flows overland as
sheet.

8. 3. Gully erosion - after heavy rains, water flows in narrow
channels, eroding gullies into great depth.

9. 4. Valley erosion - continuous water flow alongside land and
move downward, which deepens a valley.

10. 5. Bank erosion -
continuous flow of water
wears out stones along
the bank of streams and
rivers.

11. 6. Coastline erosion - waves from ocean and seas crash
against the shore, pounding the rocks into pebbles to sand.
Sand is also removed from the beaches, which changes the
coastline.

12. 7. Seaside Cliff erosion - the
battering of ocean waves
erodes seasides cliff,
forming hales that create
cave. Continuous pounding
of waves may cause an arch
that may fall, leaving nothing
but rock columns called sea
stocks.

13. GLACIER EROSION
• A glacier is a thick large mass of ice formed hundreds or
thousands of years mostly in remote areas like in the poles or
in high mountains. They move very slowly.
• Glaciers are capable of great erosion. They can erode land
through plucking and abrasion. Plucking occurs when ice
water freezes. It expands, loosens, and pulls out the rock
fragments, becoming part of the glaciers. Abrasion
smoothens and polishes the surface below.
• The effect of glacial erosion depends on the rate of
movement, thickness of ice, shape and hardness of
fragments in the ice, and erodibility of the surface beneath
the ice.

15. WIND EROSION
• Wind carries dust, sand, and volcanic ash from one
place to another. In dry areas, strong wind wears
away soft rocks, and also polishes rocks and cliffs
until they are smooth. Wind can also erode
materials until nothing is left. In the desert, wind
flows sand to form sand dunes.

17. TRANSPORTATION
• It refers to the process of taking the rock
fragments from one place to another by
any of the above mentioned agents. As
such transportation is a sub segment of
the whole process of erosion.

18. How are the materials transported:
• Solution - materials are described in water and carried
along by water.
• Suspension - the suspended particles are carried by a
medium (air, water, or ice).
• Traction - particles move by rolling, sliding, and shuffling
along eroded surface. These movements occur in all
erotional agents.
• Saltation - particles move from the surface to the quick
repeated cycle. The repeated cyle has enough force to
detach new particles.

19. Factors that affect transportation of particles:
• Particle weight
• Size
• Shape
• Surface configuration
• Medium type
• Resistance of particles to
cohesion
And other environmental
factors.
For example, for wind,
transport velocity can be
affected by variation in
spatial heating and cooling,
which create pressure
gradient. In stream, the
transport of sediments is
influenced by slope,
discharge, and channel
shape.