Igneous Rocks Flashcards
1
Q
Andesite
A
Extrusive intermediate
2
Q
Basalt
A
Extrusive Mafic
3
Q
Diorite
A
Intrusive intermediate
4
Q
Granite
A
Intrusive felsic
5
Q
Gabbro
A
intrusive mafic.
6
Q
Obsidian
A
Extrusive felsic, glassy
7
Q
Peridotite
A
Ultramafic intrusive.
8
Q
Pumice
A
Extrusive felsic, frothy.
9
Q
Rhyolite
A
Extrusive felsic.
10
Q
Scoria
A
Extrusive mafic, frothy.
11
Q
Volcanic Breccia
A
Extrusive, ash and large particles
12
Q
Mafic minerals (4)
A
Pyroxene, Ca-rich plagioclase feldspar, olivine, amphibole
13
Q
Felsic minerals (6)
A
Quartz, K-feldspar, Na-rich plagioclase feldspar, amphibole, muscovite, biotite
14
Q
Intermediate minerals (4)
A
Amphibole, plagioclase feldspar, pyroxene, biotite
15
Q
Ultramafic minerals (3)
A
Olivine, pyroxene, Ca-rich plagioclase feldspar
