Download Ch 6 DR – Sedimentary Rocks

Name _______________________________________ Due Date _____________
Per. _______
Ch 6 DR – Sedimentary Rocks
1. What are the three most common types of sedimentary rocks? (p. 113)
_____________________, _____________________ , & _____________________
2.
How do geologists determine the origin and environment of deposition of sedimentary rocks? (p. 113)
3. What are 2 sources of sediments? (p. 114) _____________________ & _____________________
4. Arrange the following sediments from largest to smallest: silt, pebble, boulder, clay, sand, cobble.
(p. 114) ___________ ___________ ___________ ___________ ___________ ___________
5. Illustrate with a diagram and explain how sediment is sorted by a river. (p. 115)
6. What is deposition? ____________________________________________________________
What are 3 ways in which sediment may be deposited? (p. 115-116) ____________________,
____________________, &____________________
7. How can geologists studying sedimentary rock determine the ancient environments where the rock
was formed? (p. 116)
8. What is lithification? ___________________________________________________________
List and describe the 3 processes that contribute to lithification. (p. 117)
____________________ ____________________ ____________________ 9. What are the 3 ways sedimentary rocks may form? What are the names of the types of rock that
result from these processes? List an example of each type of rock. (p. 118)
How Sedimentary
Type of Sedimentary
Example Rock
Rock Forms?
Rock
Name _______________________________________ Due Date _____________
Per. _______
10. Distinguish between a breccia and a comglomerate. (p. 118)
11. Distinguish quartz sandstone, arkose, and greywacke. (p. 119-120)
12. Describe 3 characteristics of shale. (p. 120-121)
_____________________, _____________________ , & _____________________
13. What is the major component of limestone? _____________________ Describe 3 ways in which
limestone may be formed? (p. 121-122) _____________________, _____________________ , &
_____________________
14. What is dolomite? _____________________ What are the 2 ways in which dolomite forms?
(p. 124) _____________________ & _____________________
15. How can chert be distinguished from limestone? (p. 124)
16. How are evaporates formed? ________________________________________________________
Name 2 common evaporate rocks and the minerals they are made of. (p. 125)
_____________________ & _____________________
17. How are the different varieties of coal recognized? (p. 126)
18. What does the principle of original horizontality state? __________________________________
_________________________How can you distinguish the age of horizontal rock layers? (p. 128)
_______________________________________________________________________________
19. What is a formation? ____________________________________________________________
List 2 criteria by which formations are distinguished? (p. 129-130) _____________________ , &
_____________________
20. What types of environments produce the most sedimentary rocks? _____________________ Why
do these environments produce more of these rocks than continental environments? (p. 133)
_______________________________________________________________________________