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Sedimentary
Rocks
What is the difference
between clastic and nonclastic sedimentary rocks?
What we know
 The
process of formation for a
sedimentary rock involves the following
steps:





Weathering
Erosion
Deposition
Compaction
Cementation
Clastic Sedimentary Rocks
 What


is a clastic sedimentary rock?
When rocks are made up of pieces of pre-existing
rocks.
Below are some examples:
Non-Clastic Sedimentary
Rocks
 What


is a non-clastic sedimentary rock?
They form from chemical reactions mostly in oceans
Examples of non-clastic sedimentary rocks:
Fossils in rocks
 Sedimentary
rocks are the only rocks that can
contain a fossil.
Famous Sedimentary Rocks
 Bighorn
Canyon
The Geologic Column
The Grand Canyon
Bryce Canyon
Everyday Uses of Sedimentary
Rocks
 Coal
is burnt to create energy.
 Gypsum is used to make plaster of Paris in
drywall.
 Sandstone & limestone are used as
building stone.
 Clays is mixed with sand and used to
make bricks.
 Smectite clay is used as a digestive cure.
 Salt is an essential food.