rocks Flashcards
1
Q
what are rocks?
A
aggregates of other minerals
2
Q
3 main types of rocks
A
igneous, metamorphic, sedimentary
3
Q
rocks formed thru the solidification of molten rock
A
igneous rock
4
Q
rocks formed thru the diagenesis of pieces from pre-existing rocks and organic material or precipitation of minerals out of water
A
sedimentary rock
5
Q
altered rocks in solid state due to changes in temp and pressure
A
metamorphic rock
6
Q
processes involved in the formation of igneous rocks
A
- melting
- cooling and crystallization
7
Q
agents of metamorphosis
A
- heat
- pressure
- chemically-active fluids
8
Q
processes involved in sedimentation
A
- weathering, transport, deposition
- diagenesis (compaction, cementation)
9
Q
deposition of sediments occur in (___)
A
layers
10
Q
agents of erosion
A
wind, water, etc.
