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37 Cards in this Set

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O -> O
subducton
igneous rocks cover:

a) a thin layer on the surface of the crust

b) most of the surface area of the crust
b) most of the surface area of the crust
crustal uplift evidence
marine fossils at high elevtion, raised beach.
lava dome
very felsic, most explosive.
regional metamorphism
Takes place over large region in mountains.
sedimentary rocks cover:

a) a thin layer on the surface of the crust

b) most of the surface area of the crust
a) a thin layer on the surface of the crust
sedimentary rock
rock made up of pieces of other rocks naturally cemented together.
transform
move side by side
super continent
pangea
metamorphic rock
Rocks that are exposed to heat and pressure, and therefore, change.
magenetic reversals
magenetic poles have reversed thrugh geologic time
continental drift evidence
fit of continents, fossil evidence, rock evidence, paleoclimatic evidence (evidence of glaciers in warm regions).
C -> C
no subduction
Who made up the 1st theory of continental drift?
Wegner
continental crust
felsic, granite, not dense
focus
origination point of earthquake below surface.
non-clastic
- bioclastic
- crystalline
earthquake
sudden movement along a fault that releases energy.
O -> C
subduction
The further from the ridge, the _____ the age.

a) younger

b) older
b) older

~ Ages mirror each other~
ridge
plates seperate, magma comes up.
convergent
move together
divergent
move apart
oceanic crust
mafic, basalt, dense
cinder cone
not such a perfect shape, irregular.
intensity/damage scale
modified mercali
Clastic
- inorganic
- fragmental
S wave
Shearing motion, can pass through solids but not liquids.
epicenter
origination point of earthquake on surface.
magnitude scale
Richter, scale from 1 - 10.
shield
looks like a shield, mafic.
P wave
compressive motion, can pass through both liquids and solids.
volcano
hill made of lava
mafic lava
hot,runny, less explosive.
felsic lava
thich, gooey, high silica, feldspar, cooler, very explosive.
the ring of fire surrounds the _____ plate.
pacific
composite
felsic, explosive.