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The latin word “______” meaning fire.
Ignis
It is based on size, shape, arrangement and degree of crystallinity.
Texture
The minerals present in this rock type are Pyroxene, amphibole olivine, biotite.
Gabbro/ Basalt
Give one example of intrusive rocks.
Granite/ Diorite/ Gabbro/ Peridotite
Large igneous bodies deep beneath the Earth.
Pluton
Nearly vertical structure that cuts across pre-existing layering.
Dike
Nearly horixontal structure injected between pre-existing layering.
Sill
Dome-shaped intrusion
Laccolith
Lenticular intrusion with a depressed central region.
Lopolith
Angular clast (greater than 64 mm)
Blocks
Rounded clast (greater than 64 mm)
Bombs
Igneous rocks that are 2-64 mm in diameter.
Lapilli
Igneous rocks that are 2 mm in diameter.
Ash
Fragments of rocks.
Lithic
Glassy fragments
Vitric
Measurements of the fragments of rocks erupted by a volcano
Pyroclastic size
The magma type of Andesitic ranges from _____ to _____ temperature.
900 degree C - 1000 degree C
The viscosity of an ultrabasic magma is called ______.
Low to very low
Ultramafic, mafic and felsic are _____ terms.
Color
This is formed when there is decrease in pressure, addition of volatiles or hear transfer from rising magma.
Magma
Determines the percentage of dark-colored and light colored minerals.
Composition
Based on completeness of crystal form and size.
Crystal form
The depth of this structire is greater than 100km²
Batholith
What do you call a crystal form that has complete crystal faces.
Euhedral
It has no observable crystal faces.
Anhedral
It is the force applied to a rock.
Stress
Metamorphism begins at what temperature
150-200°C
Metamorphic minerals that forms only under netamorphic temperature and pressures.
Mineral Assemblage
A chemical and mineral composition alteration of rocks by reactions with hydrothermal fluids
Metasomatism
This path indicates decreasing temperatures and pressures as rock is carried toward
Earth's surface.
Retrogade
A mixture of igneous rock and relict of metamorphic rock
Migmatite
Textural change to a pre-existing "parent rock” or protolith
Metamorphism
Repetitive layering due to preferred mineral orientation
foliation
The increase in temperature with increasing depth in Earth's interior
Geothermal Gradient
A part of Metamorphic processes where formation of new metamorphic mineral crystals
Neocrystallization
It is a metamorphic process that change in grain shape and size only
Recrystallization
Force applied in a particular direction (shearing)
Differential stress
Are non-foliated metamorphic rocks
Granoblastic
Force applied equally in all directions (compression)
Confining Stress
Dark and light layers of colored minerals
Compositional banding
Preferred orientation of large mica flakes
Schistosity
Distinctive arrangements of mineral grains not found in other rock types
metamorphic texture
Rock groups with varying mineral compositions formed under particular conditions of temperature and pressure from different parent rocks.
Metamorphic Facies
What are the 2 types of divergent plate boundaries
Contact metamorphism & Seafloor Metamorphism
It refers to the degree of metamorphic change a rock has undergone, which correlates with changes in mineral composition and textures pressure and temperature increases
Metamorphic grade
Mineral grains dissolve producing ions that migrate then precipitate elsewhere
Pressure solutions
One mineral transforms to another mineral with the same composition but different crystal structure
Phase change
Same combination of minerals occur due to metamorphism
Metamorphic zone
It forms within a limited range of temperatures and pressures
index minerals
Note 
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