1. SEDIMENTARY ROCKS

2. SEDIMENTARY ROCKS Sedimentary rocks- formed from loose sediment
(the broken fragments of other
rocks).
These sediments are transported,
deposited and eventually
compacted and cemented
together. This is called lithification.

3. Clastic rocks are composed of fragments, or clasts, of pre-existing rock.

4. Bioclastic rocks are composed of organic debris such as plants (lignite, coal) or shells (coquina, fossiliferous limestone).

5. Chemical/
Crystalline:
formed from minerals that were once dissolved in water.

6. Are all Sed. Rocks distinguishable in only one of the groups (Clastic, Organic, Chemical)??

7. Sed Rx mini-LAB GET OUT YOUR GREEN Rock ID Charts AND
Your Objective Notes

8. Sedimentary Rock Features
Stratification/Strata
- is the building up of layers

9. Sedimentary Rock Features
Mud Cracks
- cracks formed by the drying, of the mud

10. Sedimentary Rock Features
Ripple Marks
- wavy feature formed by wind, wave, or current.

11. Sedimentary Rock Features
Fossils
- Organic organisms fossilized/cemented into rock layer.

12. Sed Rx I.D.-LAB Using your Rock mini-Lab for help with identification.
When done get a check from
Mr. Shelson
Work on Test Review quietly at your lab table.

16. What happened to these Rocks?
TELL ME A STORY
What happened to these Rocks?

17. Acid Rain
Acid rain is rain or any other form of precipitation that is unusually acidic.

18. pH Scale
DRAW this Scale
Acidic
Neutral
Basic

19. pH Scale The pH scale measures how acidic or basic a substance is.
The pH scale ranges from 0 to 14.
A pH of 7 is neutral.
A pH less than 7 is acidic.
A pH greater than 7 is basic.

21. Parent Rock
Sandy Soil Clay-Rich
- QUARTZ - BASALT

23. How do you use it??