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Sedimentary Rocks.

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Presentation on theme: "Sedimentary Rocks."— Presentation transcript:

1 Sedimentary Rocks

2 From Sediment to Rock. Sediment
Small solid pieces of material that come from rocks or living things May include shells bones leaves stems and remains of other living things

3 From Sediment to Rock. Most sedimentary rocks are formed through a series of processes : Erosion, deposition, Compaction, and Cementation

4 From Sediment to Rock. Erosion
Running water wind or ice loosen and carry away fragments of rock

5 From Sediment to Rock. Deposition
Process by which sediment settles out of the water or wind carrying it

6 From Sediment to Rock. Compaction
The process that presses sediment together in thick layers that build up gradually over time

7 From Sediment to Rock. Cementation
The process in which dissolved minerals crystallize and glue particles of sediment together

8 Types of sedimentary Rock
There are three main types of sedimentary rocks. Clastic Rocks, Organic Rocks, and Chemical Rocks

9 Types of sedimentary Rock
Clastic Rocks Sedimentary rock that forms when rock fragments are squeezed together Shale, Sandstone, Conglomerate, and breccia

10 Types of sedimentary Rock
Organic rocks These types of rocks form when the remains of plants and animals are deposited in thick layers. Coal (swamp plants) and Limestone (sea creatures)

11 Types of sedimentary Rock
Chemical Rocks When minerals that are dissolved in solution crystallize

12 Uses of Sedimentary Rocks
People have used sedimentary rocks throughout history for many different purposes, including building materials and tools. Example flint for arrowheads Limestone for cement and steel

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