Transcript C - White Plains Public Schools

The basaltic bedrock
of the oceanic crust is
classified as…
(1) felsic, with a density of 2.7 g/cm3
(2) felsic, with a density of 3.0 g/cm3
(3) mafic, with a density of 2.7 g/cm3
(4) mafic, with a density of 3.0 g/cm3
Which part of Earth’s interior is inferred to have
convection currents that cause tectonic plates to
move?
(1) rigid mantle
(3) outer core
(2) asthenosphere
(4) inner core
Which part of Earth’s interior is inferred to be
divided into two parts by the MOHO?
(1) rigid mantle
(3) lithosphere
(2) asthenosphere
(4) inner core
What is Earth’s inferred interior pressure, in
millions of atmospheres, at a depth of 4500
kilometers?
(1)1.9
(3) 5500
(2) 2.7
(4) 6500
What is Earth’s inferred temperature at the
Inner Core/Outer Core Interface?
(1)1900oC
(3) 5500oC
(2) 2700oC
(4) 6300oC
Which part of Earth’s interior is
inferred to be the most dense?
(1) rigid mantle
(2) asthenosphere
(3) outer core
(4) inner core
Which part of Earth’s interior is inferred to be
principally Iron & Nickel?
(1) rigid mantle
(3) stiffer mantle
(2) asthenosphere
(4) inner core
Which part of Earth’s interior is inferred
to have convection currents that cause
tectonic plates to move?
(1) rigid mantle
(2) asthenosphere
(3) outer core
(4) inner core
The graph shows the different
velocities of P-waves and S-waves
through Earth’s interior.
Which cross section
shows the inferred
thickness of Earth’s
interior layers that
cause these
different velocities?
Which observation about the MidAtlantic Ridge region provides the best
evidence that the seafloor has been
spreading for millions of years?
(1)The bedrock of the ridge and nearby seafloor is
igneous rock.
(2) The ridge is the location of irregular volcanic
eruptions.
(3) Several faults cut across the ridge and nearby
seafloor.
(4) Seafloor bedrock is younger near the ridge and
older farther away.
The cross section below represents two crustal plates and the boundary
between them. The arrows indicate the direction of rock movement.
The
Which
mid-oceanic
geologic events
ridge portion
occur most
of this
often
cross
at section
this mid-oceanic
best represents
ridge
plate boundary?
1 convergence of the Nazca Plate and the South American Plate
1 magnetic pole reversals and cooling of ocean water
2 divergence of the African Plate and the South American Plate
2 meteorite impacts and tilting of shorelines
3 subduction of the Philippine Plate by the Eurasian Plate
3 hydrospheric pollution and adiabatic heating
4 transform faulting between the Pacific Plate and the North
4American
earthquakes
Plate
and volcanic eruptions
The diagram below is a location where two tectonic plates meet.
This type
plate
is known
as
The temperature
at of
point
X isboundary
inferred to
be approximately
(1)100°C
Divergence
(1)
(3)4200°C
Spreading
(3)
(2)1300°C
Convergence
(2)
(4)5000°C
Rifting
(4)
Which block diagram best represents the relative
direction of plate motion at the San Andreas Fault?
Compared
to the
the this
Between which
twocontinental
lithospheric crust,
plates could
boundary
be located?
oceanic
crust
is
(1)
South
Plate
and African Plate
(1)
lessAmerican
dense and
thinner
(2) Scotia Plate and Antarctic Plate
(2) less dense and thicker
(3) Nazca Plate and South American Plate
(3) more dense and thinner
(4) African Plate and Arabian Plate
(4) more dense and thicker
The map shows the location of North Island in New Zealand. The block
diagram shows a portion of North Island. The Hikurangi Trench is shown
forming at the edge of the Pacific Plate. Point X is at the boundary
between the lithosphere and the asthenosphere.
State
Describe
approximate
the
of tectonic
temperature
plate
atmotion
point
X.
that
Thisthe
trench
is atype
boundary
where two
plates
meet.
NAMEformed
the tectonic
plate that isTrench.
less dense.
the Hikurangi
Indian-Australian
Convergence
1000o(Subduction)
C Plate
The map shows the location of North Island in New Zealand. The block
diagram shows a portion of North Island. The Hikurangi Trench is shown
forming at the edge of the Pacific Plate. Point X is at the boundary
between the lithosphere and the asthenosphere.
Describe
theistype
of tectonic
motion
that
This trench
a boundary
whereplate
two plates
meet.
State
thethe
approximate
temperature
at
point
State
the
layer
at point
X.X.
NAME
thename
tectonic
plate
that
is
less
dense.
formed
the of
Hikurangi
Trench.
o
Convergence
(Subduction)
MOHO
Indian-Australian
1000
C
Plate
The map shows the
northern section of the
boundary between the
Arabian Plate and the
African Plate. Arrows show
the relative direction
of plate motion.
Which
typecreated
of plateor
boundary
is located
at the
Fault?
Is crust
destroyed
at this type
of Jordan
boundary?
(1) divergent
(3) convergent
(2) subduction
NEITHER!!!
(4) transform
Which map best indicates the probable locations of
continents 100 million years from now if tectonic plate
movement continues at its present rate and direction?
The seismogram here shows the time that an
earthquake P-wave arrived at a seismic station
in Albany, New York.
If the earthquake occurred at exactly 10:00 p.m.,
approximately how far from the earthquake epicenter
was Albany, New York?
(1) 1,900 km
(3) 3,200 km
(2) 4,000 km
(4) 5,200 km
The arrival of P-waves and S-waves at a seismic
station indicate an epicenter distance of 1400 Km.
If the P-wave arrived at 15:42:30, when did the
earthquake occur?
1)
2)
15:25:30
15:32:23
3) 15:27:00
4) 15:39:30
1400 km takes a
P wave 3 minutes!
According to the seismogram, when did the
first P-waves arrive at this seismic station?
(1) 3 minutes after an earthquake occurred
2,600 km away
(2) 5 minutes after an earthquake occurred
2,600 km away
(3) 9 minutes after an earthquake occurred
3,500 km away
(4) 11 minutes after an earthquake occurred
3,500 km away
The arrival time of the first earthquake P-wave at a
seismograph station was 10:11:20(hours:minutes:seconds).
If the epicenter of the earthquake is 8000 km away,
what was the approximate arrival time of the first
S-wave from this earthquake?
(1) 10:02:00
(3) 10:20:40
(2) 10:09:20
(4) 10:32:00
The seismogram was recorded at a seismic station and shows the arrival times of the
first P-wave and S-wave from an earthquake.
When does the P wave arrive?
08:08:00
When does the S wave arrive?
08:11:25
What is the difference in arrival times?
What is the distance to the epicenter?
00:03:25
2100 Km
When was the earthquake? For 2100 Km a P-Wave takes 4:10,
so…
08:03:50
The cross section of Earth
shows a P-wave moving away
from an earthquake epicenter to
seismic station A.
No S-waves arrive directly at seismic station A because
(1) some parts of the core are liquid
(2) S-waves travel too slowly
(3) the distance to seismic station A is too great
(4) seismic station A is located on glacial ice
Which statement correctly compares
seismic P-waves with seismic S-waves?
(1) P-waves travel faster than S-waves and pass
through Earth’s liquid zones.
(2) P-waves travel faster than S-waves and do not
pass through Earth’s liquid zones.
(3) P-waves travel slower than S-waves and pass
through Earth’s liquid zones.
(4) P-waves travel slower than S-waves and do
not pass through Earth’s liquid zones.
The basaltic bedrock of the oceanic crust is classified as
(1) felsic, with a density of 2.7 g/cm3
(2) felsic, with a density of 3.0 g/cm3
(3) mafic, with a density of 2.7 g/cm3
(4) mafic, with a density of 3.0 g/cm3
Earth’s inner core is inferred to be solid based on the
analysis of
(1) seismic waves
(2) crustal rocks
(3) radioactive decay rates
(4) magnetic pole reversals
The diagram here
was completed by a
seismologist.
The earthquake’s
epicenter is closest
to location
(1) A
(3) C
(2) B
(4) D
The picture demonstrates the
result of a geological event
An
Earthquake
occurred.
The fault
line is here
What event took place, what is the
feature called and where is it located
in the picture?
The data table below shows the density of four different mineral samples.
A student accurately measured the mass of a
sample of one of the four minerals to be
294.4 grams and its volume to be 73.6 cm3.
Which mineral sample did the student measure?
(1) corundum
(3) hematite
(2) galena
(4) quartz
Below are models of two types of earthquake waves.
Model A best represents which earthquake waves?
(1) P-waves (compressional waves) that travel faster than Swaves (shear waves) shown in model B
(2) P-waves (compressional waves) that travel slower than Swaves (shear waves) shown in model B
(3) S-waves (shear waves) that travel faster than P-waves
(compressional waves) shown in model B
(4) S-waves (shear waves) that travel slower than P-waves
(compressional waves) shown in model B
Base your answers to the questions on the
cross section below, which shows a portion of
Earth’s interior layers and the location of an
earthquake epicenter. Letter A represents a
Becausestation
S-waves
through
seismic
on cannot
Earth’s pass
surface.
Letter B
The aliquid
outer
represents
location
in core.
Earth’s interior.
What is the approximate depth at location B?
2900 Km
Explain why seismic station A receives Pwaves but not S-waves from this earthquake.
The arrival of P-waves and S-waves at a
seismic station indicate an epicenter
distance of 4000 Km.
If the P-wave arrived at 15:32:30, when
did the earthquake occur?
1) 15:25:30
2) 15:32:23
3) 15:27:00
4) 15:39:30
Which of the following is NOT an
advisable safety measure to reduce
the hazards created by earthquakes.
(1) Build with stronger, reinforced materials
(2) Develop a “P-wave” warning system
(3) Hide under tables or in door frames
(4) Stand near walls or windows
1. Earthquake occurs (originates), waves spread.
1. Earthquake occurs (originates), waves spread.
2. P & S waves arrive at a seismometer.
1. Earthquake occurs (originates), waves spread.
2. P & S waves arrive at a seismometer.
3. P arrival is subtracted from S arrival to
determine arrival difference (“lag time”).
S wave 11:44:50
P wave -11:43:10
01:40
1. Earthquake occurs (originates), waves spread.
2. P & S waves arrive at a seismometer.
3. P arrival is subtracted from S arrival to
determine arrival difference (“lag time”).
4. Travel time chart (edge of paper!) used to find
unique location of epicenter distance.
01:40
900 Km
1. Earthquake occurs (originates), waves spread.
2. P & S waves arrive at a seismometer.
3. P arrival is subtracted from S arrival to
determine arrival difference (“lag time”).
4. Travel time chart (edge of paper!) used to find
unique location of epicenter distance.
5. Circle of correct distance drawn on map.
900 Km
1. Earthquake occurs (originates), waves spread.
2. P & S waves arrive at a seismometer.
3. P arrival is subtracted from S arrival to
determine arrival difference (“lag time”).
4. Travel time chart (edge of paper!) used to find
unique location of epicenter distance.
5. Circle of correct distance drawn on map.
6. Three circles are required to get location
(one = distance, two = two possible locations).
The diagram
here was
completed by a
seismologist.
The earthquake’s
epicenter is
closest to
location
(1) A
(3) C
(2) B
(4) D