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Geology Powerpoint 6 Quiz- Metamorphic Rocks

What does Meta and Morph mean?
Change structure
Change chemistry
Change form
Change crystal form
Is gneiss more coarse, or less coarse than shist?
More
Less
Will gneiss break along foliation planes?
Yes
No
How does migmatite melt?
What is a mixture of igneous and metamorphic rock? (granite + gneiss)
Schists
Shale
Gneiss
Migmatite
True or false, gneiss is a transitional rock?
True
False
Non-foliated metamorphic rocks are composed of what kind of minerals?
Fine grained
Granular
Angular
Coarse grained
What are two examples of granular minerals?
What texture is created when calcite or quartz(granular minerals) are subjected to stress?
What does equigranular texture mean?
On foliated minerals, are there amphiboles and mica present to define it?
No
Yes
What are two examples of non-foliated metamorphic rocks?
What is the parent rock for marble and what is its formula?
What is the parent rock for quartzite?
What is non-foliated recrystallized sandstone?
Marble
Quartzite
Quartz
Shale
What is the formula for quartz?
Caco3
Sio2
Feo2
Cao3
In quartzite, some _____ _____ survive.
True or false non-foliated rocks can have both contact and regional metamorphism?
True
False
 
 
What have metamorphic rocks been mineralogically or texturally changed by?
Water and Heat
Water and pressure
Heat and Wind
Heat and Pressure
Rocks are metamorphosed, I.e. Changed mineralogically or texturally by what commonly?
Solids
Mica
Shale
Fluids
What do metamorphic rocks provide a window into?
Temperatures
Pressures
Fluid composition
It provides a window into all of these
True or false, in Igneous an sedimentary processes, we can see them forming naturally?
True
False
Can we see Metamorphic rocks forming naturally?
Yes
No
Metamorphism occurs at pressures and temperatures much _____ than those on the earth's surface?
Higher
Lower
The same
There is no answer
Metamorphic rocks occur below temperatures and pressure conditions that cause melting.
False
True
Where do metamorphic rocks form?
Mantle
Middle crust
Lower crust
Both middle and lower crust
Metamorphic rocks remain in what state?
The solid state
The liquid state
The gaseous state
The fluid state
What do metamorphic changes depend on?
The protobith
Mica
The protolith
Shales
What is a protolith?
How fast are Metamorphic processes and give an example.
Around what temperature are metamorphic rocks not naturally found?
What are the two categories of metamorphic rocks?
What are the six metamorphic foliated rocks?
What three things increase as you go from low grade rock to high grade?
Increasing intensity of metamorphism
Increasing crystal size
Increasing coarseness of foliation
All of these
What is the protolith for slate?
Shale
Phyllite
Mica
Gneiss
What rocks break smoothly along foliation planes for foliated metamorphic rocks?
Phyllite
Gneiss
Slate
Mica
Shale are ____ and ___ minerals that are aligned and ___
Ture or false- slate is very coarse grained
True
False
What grows on phyllite due to stress and in what direction?
What do micas do to the surface of phyllite rocks?
True or false phyllite is very fine grained
True
False
What direction do micas grow on shicts?
Perpendicular
Parallel
True or false- schists are not coarser than phllyite and will not break along cleavage planes?
True
False
Schists are often f....?
Non-foliated
Folded
Faulted
Fractured
What metamorphic minerals are segregated into light and dark bands?
Schists
Mica
Phyllite
Gneiss
What are the light bands made on gneiss?
Quartz
Amphibole
Biotite
Feldspar
Both amphibole and biotite
Both quartz and feldspar
What are the dark bands in gneiss made of?
True or false, gneiss can't be tightly folded?
True
False
What is non-foliated recrystallized limestone known as?
Quartz
Quartzite
Marble
Shales
What results in secondary minerals, streaks and bands in marble?
Fracturing and rejoining
Impurities
Chemistry
Purities
How are impurities are marble valuable to people?
What are the sources of causing heat in metamorphic processes?
Magma
Pressure
Both magma and burial
Burial
What does magma degrees range around?
500-1200
600-1200
700-4000
700-1200
What does burial degrees range around in degrees celsius per km.
15-30
30-45
15-35
15-45
What are the two effects of heat in metamorphism?
What are the two different types of pressures?
What reduced space and drives reactions to denser forms of minerals?
Differential stress
Confining pressure
Contracting pressure
Differential contraction
What is the source of confining pressure?
Differential stress is also called directed pressure and results in ultimately what?
Fracture
Non-foliation
Faulting
Foliation
What is the source of differential stress?
Differential stress cause _____ of _____ or ___ minerals and growth of new minerals in the same direction
What does folia =?
Plant
Petal
Leaf
Neither of these
What are the three sources of fluids from metamorphism?
Ground/sea water
Magma
Release of water from minerals
All of these
Heat and pressure change the ____ environment while fluids change the ____.
Fluids remove and adds ___ and leads to ______ changes.
Re fluids in metamorphism ____ rock goes towards ___ rock.
When chemical change in a rock results from interaction with fluids what is it called?
Metamorphism
Metasomatism
Metasomas
Somatism
Water released in what zones alter rocks when it passes through it in fluid metamorphic processes?
What type of metamorphism is cause by heat from an igneous intrusion or lava flow?
Contact
Regional
What area is right next to an igneous rock intrusion?
What type of metamorphism results from impact of meteorites
Contact
Regional
Shock
Contact metamorphism includes ____ while shock includes ___ and ___.
What effects result from shock metamorphism?
What are some locations for evidence of impact craters?
What type of metamorphism includes pressures, temperatures and fluids?
Regional
Contact
Shock
Cataclastic
What kind of metamorphism is usually associated with plate collisions?
Regional
Contact
Shock
Cataclastic
What occurs from regional metamorphism?
In regional metamorphism are rock intensely foliated?
Yes
No
What type of metamorphism is caused by frictional pressure along a fault?
Regional
Contact
Shock
Cataclastic
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