Chapter 6 Sedimentary Rocks Flashcards
1
Q
Describe the two major characteristics.
A
- Composed of silicate fragments such as silicate minerals and rock fragments
- Undergoes weathering & erosion, transport, deposition, and lithification
2
Q
What are the two kinds of weathering?
A
Physical weathering: bedrock is broken into smaller fragments and composition is unchanged
Chemical weathering:water and dissolved ions reach with solid rock to produce different compositions
3
Q
What are the three different kinds of lithification?
A
Compaction: reduction in volume of sediments resulting from weight of newly deposited ones above
Cementation: Precipitated minerals bind together the grains of a sediment
Recrystallization: formation of new crystalline grains
