Sedimentary Rocks Note Guide
Name:
1. What kind of rocks are the most common at Earth's surface?
2. What can a fossil tell you?
A.
B.
C.
3. If you find a fossil shark or a fossil fern, what might the environment have been like when they lived?
Shark Fern 4. What are some economically important resources found either in or with sedimentary rocks?
5. What does lithification mean?
6. What is the difference between cementation and compaction?
Cementation Compaction 7. Write under each rock whther it underwent compaction or cementation.
A. ______________
B. ________________
8. This rock shows what characteristic of sedimentary rocks?
9. Where are the oldest sedimentary rocks in the above picture?
10. What is a detrital sedimentary rock formed from?
11. List the detrital particle sizes from smallest (A) to largest (F)
A. D. B. E. C. F. -
This isn't a question but is a chart to refer to for sizes and
formation processes
12. What do sharp, jagged fragments in a sedimentary rock tell
you about where it formed in relation to the sediment in it?
13. What do rounded edges in a sedimentary rock tell you about
where it formed?
14. Which of these specimens formed close to its source rock?
Which formed farther away?
A. (Breccia) formed
________________
B. (Conglomerate) formed
____________________
15. How are chemical sedimentary rocks formed?
16. What does it mean if a sedimentary rock is biochemical in origin? Give an example of a biochemical
sedimentary rock too.
17. What is the difference between a rock that forms by precipitation or one that forms by evaporation (an
evaoporite)?
18. Label the following pictures as chemical (precipitate), an evaporite or biochemical in origin.
Coquina _____________
Tufa ___________________
Chert
(arrowheads)___________
Stalactites_________________