149k views
4 votes
Identifying the rocks

Identifying the rocks-example-1
User SebasSBM
by
8.6k points

1 Answer

4 votes
Granite
T: Phaneritic, Pegmatitic
P: Craton. Near Intrusive bodies such as a batholith
Plutonic
Minerals: Major: Plagioclase, K-spar

Granite #2
T: Phaneritic
P: same as above
plutonic
minerals: Major: Kspar Minor: Quartz and plag

Syenite:
T: Phaneritic
P: intrusive body. common in sills and more mafic bodies.
minerals: mainly alkali feldspar and amphibole

User Themaestro
by
7.9k points