reverse fault
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hanging wall moves up relative to the footwall
what part of the US has been known for active gold mining?
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western U.S.
how much gold do secondary/placer and disseminated gold deposits contain?
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some to little
what is magma a mixture of?
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molten rock and solid mineral crystals all w/ different melting points
regional metamorphism
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increasing pressure and temperature causes lots of change; complete
chemical alteration
biochemical rocks
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formed from the remains of organisms (plants and animals)
where are active volcanoes observed?
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, convergent boundaries and subduction zones
what caused the initial landslide of Mt St Helens?
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an earthquake
during the process of stress build up, when do earthquakes occur?
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when rocks snap back to original shape
what is the fastest traveling wave?
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P wave
what scale is used to measure magnitude?
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, moment magnitude scale
how do earthquakes produce tsunamis?
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earthquakes happen in the ocean at a subduction zone
earthquake magnitude
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the measure of the amount of energy an earthquake releases
why are igneous rocks typically found on the west coast?
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presence of volcanoes due to convergent boundary
are all faults plate boundaries?
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Give this one a try later!
hanging wall moves up relative to the footwall
what part of the US has been known for active gold mining?
Give this one a try later!
western U.S.
how much gold do secondary/placer and disseminated gold deposits contain?
,Give this one a try later!
some to little
what is magma a mixture of?
Give this one a try later!
molten rock and solid mineral crystals all w/ different melting points
regional metamorphism
Give this one a try later!
increasing pressure and temperature causes lots of change; complete
chemical alteration
biochemical rocks
Give this one a try later!
formed from the remains of organisms (plants and animals)
where are active volcanoes observed?
Give this one a try later!
, convergent boundaries and subduction zones
what caused the initial landslide of Mt St Helens?
Give this one a try later!
an earthquake
during the process of stress build up, when do earthquakes occur?
Give this one a try later!
when rocks snap back to original shape
what is the fastest traveling wave?
Give this one a try later!
P wave
what scale is used to measure magnitude?
Give this one a try later!
, moment magnitude scale
how do earthquakes produce tsunamis?
Give this one a try later!
earthquakes happen in the ocean at a subduction zone
earthquake magnitude
Give this one a try later!
the measure of the amount of energy an earthquake releases
why are igneous rocks typically found on the west coast?
Give this one a try later!
presence of volcanoes due to convergent boundary
are all faults plate boundaries?
Give this one a try later!
