1. Sedimentary Rock
Chapter 4 Section 3

2. Sedimentary Rock Forms when wind or water deposit sediment
Sediment – small pieces of material that come from rock or living material

3. Processes Erosion – running water, wind or ice carry
away fragments of weathered rock
Deposition – wind, water and ice slows and
sediment settles out in layers
Compaction – sediment is pressed together
Cementation – dissolved minerals crystallize
and glue particles of sediment together

4. Types of Sedimentary Rock
Clastic rock – rock formed when fragments
are squeezed together
Rock Fragments can range in size

5. Examples of Clastic Sedimentary Rock
Sandstone – sand from beaches
or sand dunes
Shale – clay particles
Breccia - Rock fragments
with sharp edges
Conglomerate –
rounded fragments of rock

6. Types of Sedimentary Rock
Organic Rocks –formed from once living
things
Examples
Coal – formed from plants
that died millions of
years ago
Limestone –formed from
ocean creatures

7. Types of Sedimentary Rock
Chemical Rocks – when minerals that are
dissolved in solution crystallize
Examples:
Limestone – from dissolved calcite
Rock Salt – from dissolved halite

8. Uses of Sedimentary Rock
Tools
Building materials