2546775
Descripción
Test por Lindsay Daly, actualizado hace más de 1 año
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Creado por Lindsay Daly
hace más de 9 años
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Pregunta 1
Pregunta
Stress buildup occurs before and after an EQ
Respuesta
- True
- False
Pregunta 2
Pregunta
An EQ is
Respuesta
-
easy to predict
-
occuring over a plane
-
a release of stress that has been building up
Pregunta 3
Pregunta
Stress builds up, is released as an EQ then plate...
Respuesta
-
rebounds to a new position and stress begins to accumulate again
-
rebounds to same position and stress begins to accumulate
-
does a jig. help me I'm twitching from coffee
Pregunta 4
Pregunta
hypocentre is focus depth
Respuesta
- True
- False
Pregunta 5
Pregunta
surface waves cause damage. There are two types:
Respuesta
-
Love waves
-
Rayleigh waves
-
Benioff-wadati waves
-
shear waves
-
p-waves
Pregunta 6
Pregunta
seismographs measure the movement of the frame relative to the movement of the weight
Respuesta
- True
- False
Pregunta 7
Pregunta
s-p time is time in between s and p waves
Respuesta
- True
- False
Pregunta 8
Pregunta
Distance from epicentre
Respuesta
-
is basically a p-wave or s-wave curve
-
increases s-p time
-
decreases s-p time
-
can be used to determine magnitude
Pregunta 9
Pregunta
where s-p waves intersect is the epicentre
Respuesta
- True
- False
Pregunta 10
Pregunta
Felt intensity is
Respuesta
-
amount of damage caused
-
magnitude of the EQ
Pregunta 11
Pregunta
elastic straining
Respuesta
-
breaks bonds of an atom, and causes an EQ
-
causes bonds to bend, eq releases tension
Pregunta 12
Pregunta
The richter scale is a logarithm of s-p times
Respuesta
- True
- False
Pregunta 13
Pregunta
an increase of one on the richter scale corresponds to an increase in magnitude
Respuesta
-
31x
-
2x
-
10^x
Pregunta 14
Pregunta
MS = log10(A) + 1.656log10(∆) + 1.818
Respuesta
-
A= angle
-
A=amplitude
-
theta=angle
-
theta=felt intensity
Pregunta 15
Pregunta
Moment magnitude is based on energy released and it depends on:
Respuesta
-
area of fault
-
constrictions of rock type
-
slip of the fault
-
type of fault
-
surface waves
Pregunta 16
Pregunta
solidus is the line of pressure vs temperature
Respuesta
-
it is the line of partial melt
-
it is the line of complete melt
-
it is the line where the rock is a solid
Pregunta 17
Pregunta
liquidus is the line of
Respuesta
-
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
Pregunta 18
Pregunta
which is a felsic rock?
Respuesta
-
andesite
-
rhyolite
-
basalt
Pregunta 19
Pregunta
higher silica content
Respuesta
-
causes higher viscosity
-
causes lower melting point
-
is found in mafic rocks
-
is found in felsic rocks
Pregunta 20
Pregunta
when gas is present in lava
Respuesta
-
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
Pregunta 21
Pregunta
ways to melt plates
Respuesta
-
plume heating
-
divergent boundaries(decompression)
-
convergent (hydration)
-
transform
-
normal
Pregunta 22
Pregunta
plumes rise from the __________________ because they're hotter
Respuesta
-
athenosphere
-
lithosphere
-
core-mantle boundary
-
mantle
Pregunta 23
Pregunta
effusive eruptions generally:
Respuesta
-
occur above hot spots
-
are composed of low viscocity magma
-
are basaltic
-
are felsic
-
are found at divergent boundaries
Pregunta 24
Pregunta
Pahoehoe lava
Respuesta
-
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
Pregunta 25
Pregunta
A'a lava
Respuesta
-
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
Pregunta 26
Pregunta
when decompression occurs
Respuesta
-
there is reduced pressure, which allows the atoms to vibrate more
-
it is at divergent plate boundaries
-
the decrease in pressure causes the lava to fill the now empty space
-
if the magma moves up fast it can melt as it there is less and less pressure keeping the atoms confined
-
it produces large amounts of new lithosphere
-
it is generally mafic magma which then creates basalt
Pregunta 27
Pregunta
when hydration melting occurs
Respuesta
-
it is at convergent plate boundaries
-
the water in the plate causes the plate to melt at lower temperatures
-
the water at high pressures helps to break the Si-O bonds
-
the geotherm is moved to the left
-
the solidus is moved to the left
Pregunta 28
Pregunta
subduction zone volcanism depends on
Respuesta
-
hydration
-
the angle of subduction
-
the plate boundary
-
the core mantle boundary
Pregunta 29
Pregunta
mainly___________ and ___________ erupt at convergent boundaries
Respuesta
-
andesite and rhyolite
-
andesite and basalt
-
basalt and rhyolite
Pregunta 30
Pregunta
islands arcs are behind the trench
Respuesta
- True
- False
Pregunta 31
Pregunta
A monopole is known to be possible
Respuesta
- True
- False
Pregunta 32
Pregunta
are these right?
Respuesta
-
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'
Pregunta 33
Pregunta
the eart's magnetic field can't be driven by magnetic iron because
Respuesta
-
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
Pregunta 34
Pregunta
a dynamo
Respuesta
-
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
Pregunta 35
Pregunta
dynamo depends on
Respuesta
-
speed
-
conductivity of metal
-
size
-
area
-
temperature
Pregunta 36
Pregunta
thermal convection in the inner core is caused by
Respuesta
-
heat transfer from the inner core to the outer core
-
latent heat of formation from the inner core's expansion
-
heat caused by the dynamo
Pregunta 37
Pregunta
choose the right pairing
Respuesta
-
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
Pregunta 38
Pregunta
northern lights are caused by:
Respuesta
-
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
Pregunta 39
Pregunta
ionospheric fields are caused when charged particles' magnetic fields interact with the magnetic field 80-200 km above the earth
Respuesta
- True
- False
Pregunta 40
Pregunta
when the field strength reaches zero
Respuesta
-
there can be a polar reversal
-
things can stay the same
-
organisms are introduced to more radiation
Pregunta 41
Pregunta
centrifugal force keeps the international space station orbiting the earth by counteracting the normal force
Respuesta
- True
- False
Pregunta 42
Pregunta
gravity in the center of the earth is only dependent on the stuff directly beneath you because
Respuesta
-
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
Pregunta 43
Pregunta
apparent gravity is
Respuesta
-
the gravity that can be observed
-
the gravity at any point on earth
Pregunta 44
Pregunta
gravity is weaker by 0.05 at the equator because
Respuesta
-
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
Pregunta 45
Pregunta
isostasy means
Respuesta
-
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
Pregunta 46
Pregunta
depth at which mantle flow occurs is the
Respuesta
-
compensation depth
-
moho
-
focus depth
Pregunta 47
Pregunta
elevation is dependent on
Respuesta
-
height
-
density
-
composition
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