{ sedimentary rocks. aim: how do we classify and evaluate sedimentary? how do we classify and...
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![Page 1: { Sedimentary Rocks. Aim: How do we classify and evaluate sedimentary? How do we classify and evaluate sedimentary? Learning Target: I CAN explain](https://reader036.vdocuments.net/reader036/viewer/2022062518/5697bf851a28abf838c878a5/html5/thumbnails/1.jpg)
{
Sedimentary Rocks
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Aim: How do we classify and evaluate
sedimentary? Learning Target:
I CAN explain how rocks are formed and on what basis they are classified
Aim & Learning Target
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Open your Reference Tables to the Sedimentary Rock Scheme
Do Now
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Do Now Check:
Read the following statement: You find a rock on your way home, you think it might
be a sedimentary rock because you see fossils embedded inside it.
Thumbs up you agree Thumbs down you disagree
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ALL ROCKS are composed of MINERALS!
RECAP:
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WEATHERING (can be caused by rain wind, water) breaks down rocks into sediments
Examples of sediments: Sand Pebbles Silt clay
FORMATION OF SEDIMENTARY ROCKS
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SETTLE in a process called deposition.
MOVE in a process called erosion
What happens to sediments?
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PRESSED together under many layers of sediment called compaction
Dissolved minerals CRYSTALLIZE AND STICK TOGETHER in a process called cementation.
What happens to sediments?
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sedimentary rocks
The result =
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May contain chunks of other rocks
May contain shells
May contain fossils
Sometimes layered, but the layer are
similar in color
Characteristics of Sedimentary Rocks
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Page 7. What does it tell us about sedimentary rocks?
What pg of the ref table can you find the Scheme for Sedimentary Rock identification?
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Texture Grain size Composition Rock names Map symbol
What does it tell us about