abt exogenic processes

1. EXOGENIC
PROCESSES
Castañares, Angellyn
Castillo, Sofia

2. EXOGENIC PROCESSES or
DENUDATION
> Refers to activities or phenomena that occur on
the earth's surface.
> Weathering, Soil Formation, Erosion
> Related to the atmosphere, hydrosphere,
biosphere

3. WEATHERING
> This process reduces the size of rocks and
prepares materials for transport.
> Different climate conditions, temperature
fluctuations, and even the location of rocks affect
this process.
> Mechanical & Chemical Weathering

4. WEATHERING: Mechanical
> The breaking down of rocks without changing their
chemical composition.
> Mechanical process depend on some applied
forces:
a. Wind
b. Water
c. Gravity

5. WEATHERING: Chemical
> The breaking of rocks by chemical mechanisms:
a. Hydration – a reaction that occurs when the
minerals in a rock dissolve when they come in contact
with water.
b. Carbonation – the reaction between rocks and
carbonic acid formed by the dissolution of carbon
dioxide in water.
c. Oxygen – may react with metal in rocks,
oxidizing these metals and changing their physical
and chemical properties.

6. EROSION
> Takes place when the material is
moved/transported from oe place to
another by natural elements such as
moving water, wind, gravity, and
animals.

7. EROSION

8. SOIL FORMATION