2546775
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Quiz von Lindsay Daly, aktualisiert more than 1 year ago
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Erstellt von Lindsay Daly
vor mehr als 9 Jahre
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Frage 1
Frage
Stress buildup occurs before and after an EQ
Antworten
- True
- False
Frage 2
Frage
An EQ is
Antworten
-
easy to predict
-
occuring over a plane
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a release of stress that has been building up
Frage 3
Frage
Stress builds up, is released as an EQ then plate...
Antworten
-
rebounds to a new position and stress begins to accumulate again
-
rebounds to same position and stress begins to accumulate
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does a jig. help me I'm twitching from coffee
Frage 4
Frage
hypocentre is focus depth
Antworten
- True
- False
Frage 5
Frage
surface waves cause damage. There are two types:
Antworten
-
Love waves
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Rayleigh waves
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Benioff-wadati waves
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shear waves
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p-waves
Frage 6
Frage
seismographs measure the movement of the frame relative to the movement of the weight
Antworten
- True
- False
Frage 7
Frage
s-p time is time in between s and p waves
Antworten
- True
- False
Frage 8
Frage
Distance from epicentre
Antworten
-
is basically a p-wave or s-wave curve
-
increases s-p time
-
decreases s-p time
-
can be used to determine magnitude
Frage 9
Frage
where s-p waves intersect is the epicentre
Antworten
- True
- False
Frage 10
Frage
Felt intensity is
Antworten
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amount of damage caused
-
magnitude of the EQ
Frage 11
Frage
elastic straining
Antworten
-
breaks bonds of an atom, and causes an EQ
-
causes bonds to bend, eq releases tension
Frage 12
Frage
The richter scale is a logarithm of s-p times
Antworten
- True
- False
Frage 13
Frage
an increase of one on the richter scale corresponds to an increase in magnitude
Antworten
-
31x
-
2x
-
10^x
Frage 14
Frage
MS = log10(A) + 1.656log10(∆) + 1.818
Antworten
-
A= angle
-
A=amplitude
-
theta=angle
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theta=felt intensity
Frage 15
Frage
Moment magnitude is based on energy released and it depends on:
Antworten
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area of fault
-
constrictions of rock type
-
slip of the fault
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type of fault
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surface waves
Frage 16
Frage
solidus is the line of pressure vs temperature
Antworten
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it is the line of partial melt
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it is the line of complete melt
-
it is the line where the rock is a solid
Frage 17
Frage
liquidus is the line of
Antworten
-
pressure vs temp for when the minerals are completely melted
-
pressure vs depth when the minerals are completely melted
-
pressure vs temperature for when the minerals are partially melted
Frage 18
Frage
which is a felsic rock?
Antworten
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andesite
-
rhyolite
-
basalt
Frage 19
Frage
higher silica content
Antworten
-
causes higher viscosity
-
causes lower melting point
-
is found in mafic rocks
-
is found in felsic rocks
Frage 20
Frage
when gas is present in lava
Antworten
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the more viscose the lava, the harder it is for the gas to escape, the more explosive the eruption
-
the lowering of the pressure causes bubbles to form, pushing the magma up
-
it evaporates due to the high temperature
-
it creates a hot pocket of gas in the belly of the volcano
Frage 21
Frage
ways to melt plates
Antworten
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plume heating
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divergent boundaries(decompression)
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convergent (hydration)
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transform
-
normal
Frage 22
Frage
plumes rise from the __________________ because they're hotter
Antworten
-
athenosphere
-
lithosphere
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core-mantle boundary
-
mantle
Frage 23
Frage
effusive eruptions generally:
Antworten
-
occur above hot spots
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are composed of low viscocity magma
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are basaltic
-
are felsic
-
are found at divergent boundaries
Frage 24
Frage
Pahoehoe lava
Antworten
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has a solid, cooled skin on the surface
-
is 1100-1200C
-
is very and is felsic
-
has low viscosity and is balsaltic
-
is 1000-1100C
Frage 25
Frage
A'a lava
Antworten
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is mafic
-
forms little solid chunks and then is broken up by the still liquid lava
-
is 1000-1100C
-
could have been Pahoehoe
-
is felsic
-
is more liquid
Frage 26
Frage
when decompression occurs
Antworten
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there is reduced pressure, which allows the atoms to vibrate more
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it is at divergent plate boundaries
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the decrease in pressure causes the lava to fill the now empty space
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if the magma moves up fast it can melt as it there is less and less pressure keeping the atoms confined
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it produces large amounts of new lithosphere
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it is generally mafic magma which then creates basalt
Frage 27
Frage
when hydration melting occurs
Antworten
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it is at convergent plate boundaries
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the water in the plate causes the plate to melt at lower temperatures
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the water at high pressures helps to break the Si-O bonds
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the geotherm is moved to the left
-
the solidus is moved to the left
Frage 28
Frage
subduction zone volcanism depends on
Antworten
-
hydration
-
the angle of subduction
-
the plate boundary
-
the core mantle boundary
Frage 29
Frage
mainly___________ and ___________ erupt at convergent boundaries
Antworten
-
andesite and rhyolite
-
andesite and basalt
-
basalt and rhyolite
Frage 30
Frage
islands arcs are behind the trench
Antworten
- True
- False
Frage 31
Frage
A monopole is known to be possible
Antworten
- True
- False
Frage 32
Frage
are these right?
Antworten
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inclination is degree from horizontal, intensity, declination is angle from true north
-
inclination is intensity, declination is degree from horizontal
-
decelnienvraru bvlea echjfd'nuojiawmec .i;oinwce]b[9'
Frage 33
Frage
the eart's magnetic field can't be driven by magnetic iron because
Antworten
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the high temperature's would surpass iron's curie temperature and it would lose it's magnetism
-
the temperature is too high
-
there is no magnetic field in the core to induce the atoms to align and create a magnetic field
Frage 34
Frage
a dynamo
Antworten
-
converts mechanical energy into electrical energy
-
is what powers the earth's core
-
is found in the solar flares
-
is what changes the solidus' slope
Frage 35
Frage
dynamo depends on
Antworten
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speed
-
conductivity of metal
-
size
-
area
-
temperature
Frage 36
Frage
thermal convection in the inner core is caused by
Antworten
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heat transfer from the inner core to the outer core
-
latent heat of formation from the inner core's expansion
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heat caused by the dynamo
Frage 37
Frage
choose the right pairing
Antworten
-
solar wind= charged particles from the sun magnetosphere= area in which charged particles are still affected by the earth's magnetic field magnetotail= part of magnetosphere that is pushed away by solar winds
-
solar wind=part of magnetosphere that is pushed away magnetosphere= charged particles from the sun magnetotail= area in which charged particles are still affected by the earth's magnetic field
Frage 38
Frage
northern lights are caused by:
Antworten
-
ions that get excited when trapped in earth's magnetic field
-
the magnetosphere becoming more hot with global warming
-
release of energy from fission of new particles in magnetosphere
Frage 39
Frage
ionospheric fields are caused when charged particles' magnetic fields interact with the magnetic field 80-200 km above the earth
Antworten
- True
- False
Frage 40
Frage
when the field strength reaches zero
Antworten
-
there can be a polar reversal
-
things can stay the same
-
organisms are introduced to more radiation
Frage 41
Frage
centrifugal force keeps the international space station orbiting the earth by counteracting the normal force
Antworten
- True
- False
Frage 42
Frage
gravity in the center of the earth is only dependent on the stuff directly beneath you because
Antworten
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there is more beneath you, but it's cancelled out by what's above
-
there's more mass above, but the mass below is heavier and cancels it out
-
the mass above is pulling up, which is cancelled out by the mass farther below, pulling down
Frage 43
Frage
apparent gravity is
Antworten
-
the gravity that can be observed
-
the gravity at any point on earth
Frage 44
Frage
gravity is weaker by 0.05 at the equator because
Antworten
-
the heat interferes with gravitational field lines
-
earth's oblong shape causes more centrifugal force to be at the equator, counteracting gravity to a small degree
-
there is more mass between earth's core and equator
Frage 45
Frage
isostasy means
Antworten
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the weight of the mountains is equal to the weight of the displaced mantle
-
that whatever is closest to earth's core will feel more gravity
-
that the more dense mountain condenses the mantle
Frage 46
Frage
depth at which mantle flow occurs is the
Antworten
-
compensation depth
-
moho
-
focus depth
Frage 47
Frage
elevation is dependent on
Antworten
-
height
-
density
-
composition
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