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Weathering Examples
Physical Weathering Examples:
Abrasion
Dry climate, wind is most
likely the major form of
moving sediments/rocks to
bounce them off each other.
Also note the reddish color,
this could be chemical
weathering due to oxidation.
Waves bounce sand and
rocks off the shore to wear
both down=abrasion.
If the water dissolves any
minerals in the rocks that
would by hydrolysis (a type
of chemical weathering.
Root wedging:
Frost Action:
Potholes are formed when water gets in
the cracks of a road, freezes and expands
as it becomes ice. This happens
repeatedly as water freezes during cool
nights and melts during the day. Cars
driving over the cracks cause further
weathering by abrasion. The expansion of
water when it freezes is the key thing to
know about frost action.
Frost Action
Chemical Weathering Examples:
Oxidation
The reddish-orange
color tells you the iron
in the rocks is reacting
with oxygen, making
“rust”, hence the
color.
Acid Rain:
Acid rain dissolves certain
minerals in rocks, making
statues made of marble or
limestone rocks have less
defined features. If acid rain
collects and sits in small
indents of a rock, it can
dissolve minerals more quickly
in that area and make holes or
pockets in the rock.
Lichens (biological chemical weathering):
Lichens dissolve minerals in the
rocks to break them down.