Slides on Weathering and Erosion for Irish Junior Cert students. Deals with various types of weathering and Karst landscapes, using the Burren as an example.

2.  The breakdown of the materials of Earth’s crust into
smaller pieces.

3.  Process by which rocks are broken down into smaller
pieces by external conditions.
 Types of Physical weathering
◦ Frost heaving and Frost wedging
◦ Plant roots
◦ Friction and impact
◦ Burrowing of animals
◦ Temperature changes

12.  CO2 dissolves in rain water and creates carbonic acid
 Carbonic acid easily weathers limestone and marble

13.  Water weathers rock by slowly dissolving it

15.  The Limestone Rock sucks in the sun’s heat and keeps the soil
warm.
 This means rare Mediterranean plants can grow in the Burren

16.  The Limestone Rock sucks in the sun’s heat and keeps the soil
warm.
 This means rare animals such as Lizards are common in the
Burren

26. Cave makes rain acidic
Swallow Hole Limestone area in Clare
Stalagmite Crack in Limestone
Carbon Dioxide Grows from ground
Rainwater Underground passage
The Burren Block of limestone
Limestone Where a river disappears
Stalactite Hangs on from roof of cave
Clint Main rock in the Burren
Grike Chemically weathers limestone

29.  Iron combines with oxygen
in the presence of water in
a processes called
oxidation
 The product of oxidation is
rust

30.  Lichens that grow on rocks produce weak acids that
chemically weather rock

31.  Compounds from burning coal, oil and gas react
chemically with water forming acids.
 Acid rain causes very rapid chemical weathering

32.  The process by which water, ice, wind or gravity moves
fragments of rock and soil.

33.  Rivers, streams, and runoff

34.  Glaciers

36.  Landslides, mudslides, slump and creep
landslide clip.mpeg