Sedimentary Rock Flashcards
Part of Exam 2
1
Q
What is the sequence of sedimentary rock formation?
A
- sediment (loose particles)
- erosion (carries elsewhere)
- deposited
- burial (layer upon layer)
- lithification
- rock
2
Q
What is lithification?
A
the compaction and cementation of the layers of particles together
3
Q
What are the three types of sedimentary rock?
A
- detrital/clastic
- chemical
- biochemical
4
Q
What is detrital/clastic sedimentary rock?
A
bits of weathered rock
5
Q
What is chemical sedimentary rock?
A
formed by precipitate from water
6
Q
What is biochemical sedimentary rock?
A
formed by secretions of organisms
7
Q
What are the characteristics of detrital/clastic rocks?
A
size, rounding, sorting
8
Q
What is rounding?
A
rocks farther from source will be more round
9
Q
What is sorting?
A
rocks whose grains are all the same are more well sorted
10
Q
What are the chemical rock characteristics?
A
- taste
- hardness
- reaction to acid
