Geology Flashcards
1
Q
Tronform faults
A
Visibly runs through aceanic crust along meeting of two plates
2
Q
Batholiths
A
Large geographic features. Formed from volcanic eruptions
3
Q
Aphanitic
A
May contain holes(look up more)
4
Q
Phaneritic
A
Medium grained, crystal’s you can see with the naked eye. Coarse grained. Slow rate of cooling
5
Q
Pegmatitic
A
Extremely coarse grained rock. Crystal sizes from several cm to several meters
6
Q
Porphyritic
A
Large crystals inbedded in smaller ones. Mineral form at different temps.
7
Q
Mafic rocks
A
Basalt rocks(extrusive) and gabbro rocks(intrusive)
8
Q
Ultra magic rocks
A
Ultramafic lava:very old and can’t form anymore because the earth isn’t hot enough.
Peridotite: can still form but is very rare
9
Q
Intrusive rocks
A
Igneous rocks where you can see the small crystals inside
