Exogenic Process Flashcards
processes that take
place at or near the earths surface
EXOGENIC PROCESS
WHAT ARE THE DIFFERENT TYPES OF
EXOGENIC PROCESS?
*WEATHERING
*EROSION
*MASS WASTING (Mass
Movement)DEPOSITION
mechanical and chemical hammer
that breaks down and sculpts rock
WEATHERING
TYPES OF
WEATHERING
*PHYSICAL
Weathering
*CHEMICAL
Weathering
the breakdown of rocks
without a change in its composition
Physical Weathering
decomposition of rocks due to
chemical reactions
Chemical Weathering
Rocks crumble and break into fragments
because they are subjected to alternating
hot and cold temperatures many times
- THERMAL AND PRESSURE CHANGE
Tiny grains of sand are picked up
and carried off by the wind, which are then
blasted on the surface of rocks, smoothening
them
- WIND AND WAVES
when water collects in the rock pores
and slits, it expands when it freezes
FREEZE/ THAW
Animals and plants also take a heavy
toll on rocks and cause them to wear
away
BIOLOGICAL
WEATHERING/ORGANIC ACIVITY
acid + water
hydration
Carbon Dioxide may bond with other
substances
CARBONATION
reaction of rock with oxygen
Oxidization
What is Erosion?
movement of the weathered rock
What are the Agents of erosion?
- Wind
- Moving water
- Glaciers/ice
- Gravity
- most important agent of erosion
- rock pieces are carried downstream to a suited depositional environment with the action of gravity
Rainwater
gives water the energy to erode and carry away rock materials
Gravity
can carry almost any size of rocks. The
greater the volume of water and the steeper the
slope, the bigger and more rocks can be
transported
Water
Mass Movement
large masses of crustal
materials are moved by the action of gravity form one
place to another
