Rocks are made mostly of light- colored quartz and feldspar
What is Granitic Composition
100
What are the two main groups of sedimentary rocks
What is clastic and chemical
100
Define contact metamorphism
When magma moves into rock
100
Hot water based solutions escaping from the mass of magma
What are hydrothermal solutions
200
Formed when lava hardens on Earth's surface
What is Extrusive Igneous rocks
200
Rocks are between granitic light- color minerals and Basaltic composition dark-colored minerals
What is Andesitic Composition
200
Difference between clastic and chemical
Chemical- form when dissolved substances precipitate from water
Clastic- WED (weathering, erosion, deposition), classified by particle size, formed from weathered bits of rocks and minerals
200
Define regional metamorphism
results in large scale change and high grade metamorphism
200
Promotes recrystallization by dissolving original minerals and the depositing of new ones
What are hydrothermal solutions
300
How do you classify igneous rocks
What are composition and texture
300
Rocks are made mostly of dark colored silicate minerals and plagioclase feldspar
What is basaltic composition
300
What does Metamorphism mean
What is to change form
300
Which type of metamorphism creates the greatest volume of metamorphic rock
What is regional metamorphism
300
Name the two classifications of Metamorphic rock
What are foliated and non foliated
400
Name the 4 textures an igneous rock could be
What are: coarse grained, fine grained, glassy, and porphyritic.
400
Rocks are made mostly from iron and magnesium- rich minerals
What is Ultramafic composition
400
Most metamorphic changes occur....
At elevated temps and pressures
400
Provides energy needed to drive chemical reactions
What is heat
400
Bands of foliated metamorphic rocks are
perpendicular to pressure
500
Talk about what cooling rates equal what texture
Coarse Grained= slow cooling
Fine grained= fast cooling
Porphyritic= different rates of cooling
Glassy= Very rapid
500
what is the group called we just went over *hint* one of the two ways you classify an igneous rock
What is composition
500
2 ways to form metamorphic rocks
What are contact metamorphism and regional metamorphism