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EAS 101
EAS 101 Flashcards
164
Geology
Undergraduate 1
12/15/2011

Additional Geology Flashcards

 


 

Cards

Term
The "plates" in plate tectonics are made up of: 
Definition
lithosphere
Term
There is an outer strong layer (the plates) and an inner weaker zone in Earth because of:
Definition
temperature
Term
Subduction is caused by continental drift. True or false?
Definition
False: Continental drift is caused by subduction.
Term
Very explosive volcanoes are associated with which type of plate boundary?
Definition
Convergent plate boundary
Term
Earthquakes are associated with which type of boundary?
Definition
All boundaries: convergent, divergent and transform.
Term
How fast are the tectonic plates moving?
Definition
A few inches a year
Term
The part of continents that extends beyond the coast and defines the actual shape of continents is called:
Definition
Continental shelf
Term
Thick, ancient coal deposits found in Illinois for example, were formed when that part of North America was:
Definition
Near the Equator
Term

Which of the following describes the inclination of the Earth's magnetic field from the equator to the poles?

A. It becomes more vertical

B. It becomes more horizontal

C. It rotates increasingly clockwise

D. It rotates increasingly counterclockwise

E. It is independent of latitude.

Definition
A. It becomes more vertical
Term

We can determine the distance of a continent from the equator when a rock formation forms by analyzing which of the following from the rocks:

A. Magnetic inclination           B. Magnetic declination

C. Total strength of the magnetic field

D. How many magnetic reverals are preserved

E. Symmetry of the magnetic field

Definition
A. Magnetic inclination
Term

If a plate is moving as shown in the figure below, which of the following features would you likely find at "X"?


^^Plate^^

 

X


 

Definition
Oceanic ridge because it's a divergent boundary
Term
Which type of volcano are Mauna Loa and Kilauea in Hawaii?
Definition
Shield Volcano
Term

Which of the following volcanoes is composed primarily of basaltic lava flows?

A. Shield Volcano

B. Stratovolcano

C. Composite Volcano

D. Cinder Cone

E. None of the above.

Definition
A. Shield Volcano
Term
Which type of volacno is found around the "Pacific Ring of Fire" and produces violent eruptions?
Definition
Composite Volcanos (Stratovolcanos)
Term
Many stratovolacanos will erupt violently producing a lot of pyroclastic material, followed by "quiet" outpouring of thick lava flows or lava domes from the same batch of magma. Why?
Definition
The magma initially has a lot of volatiles, but then these are lost from the magma.
Term

Which combination of viscosity and volatile content produces spectacular  "lava fountains"?

A. Low viscosity and high volatile content

B. Low viscosity and low volatile content

C. High viscosity and high volatile content

D. High viscosity and low volatile content

E. B or D

Definition
A. Low viscosity and high volatile content
Term
Motion of the plates causes what at their edges?
Definition
Earthquakes
Term
How many plates are there on Earth?
Definition
A dozen or so.
Term
How can one measure the motions of plates?
Definition
Using GPS to locate where that specific spot is and then returning to the same spot to use GPS to locate it again.
Term
When two plates are moving toward each other, it is said to be what type of boundary?
Definition
Convergent boundary
Term
When two plates are moving away from each other, it is said to be what type of plate boundary?
Definition
Divergent boundary
Term
When two plates are moving against each other, it is said to be what type of plate boundary?
Definition
Transform boundary
Term
What features can be found at convergent boundaries?
Definition
Deep ocean trenches and/or mountain belts, explosive volcanoes, large earthquakes
Term
What features can you find at divergent plate boundaries?
Definition
Undersea mountains and undersea volcanoes (oceanic ridges) and some earthquakes.
Term
Volcanism at divergent boundaries is due to what?
Definition
Pressure release melting of the mantle.
Term
Pressure release melting is:
Definition
When two plates pull away from each other, the lithosphere stretches and thins out and rocks at the lower lithosphere begin to melt due to less pressure and rise into the rift as magma
Term
What features are found at transform plate boundaries?
Definition
Large faults and large earthquakes
Term
Why are the plates moving?
Definition
Convection in Earth: the cold and denser plates want to sink (hot rises; cold sinks)
Term
Why are there volacanos at convergent plates? Divergent plates?
Definition

Convergent: Melting occurs when one plate sinks back into the Earth because water is dragged down which triggers the melting)

 

Divergent: Melting occurs when two plates move apart which thins out the lithosphere and lowers the pressure which causees melting.

Term
Why are there earthquakes?
Definition
Rubbing of plates against each other (where two plates meet) causes earthquakes
Term
Why are there earthquakes in Missouri?
Definition
Since plates are not perfect, there are fractures (faults) within the plate.
Term
Why are there volacanos in Hawaii if it is in the middle of the plate?!
Definition
Hawaii is located at a "hot spot" which are caused by "mantle plumes". Mantle plumes are hot blobs of the asthenosphere rising up. When it rises, the pressure is lowered and causes melting which essentially causes a volcano on the plate. As the plate moves, the volcano moves and becomes inactive as another volcano is produced next to it by the mantle plume that never moved.
Term
What are the 5 key evidences for Continental Drift that lead to the Theory of Plate Tectonics?
Definition

1. jigsaw fit of continents

2. distribution of mountain ranges and structures

3. distribution of animals and plants

4. distribution of climate belts (glacial tills, coal etc)

5. paleomagnetic data (constrains lattitude and rotation of land mass)

Term
The particle in an atom that carries the positive charge is the:
Definition
Proton
Term

Which of the following chemical bonds is the weakest (other things being equal)?

A. Covalent bonds

B. Ionic bonds

C. Metallic bonds

D. van der Waals bonds

E. not necessarily any of the above

Definition
D. van der Waals bonds
Term
A common way to describe a portion of the electromagentic spectrum is Hertz. What is Hertz?
Definition
Hertz is a measure of the frequency (in per second)
Term

Which of the following describes the relationship between wavelength and energy of the electromagnetic wave?

A. The energy is independent of wavelength

B. Shorter wavelength corresponds to higher energy

C. Shorter wavelength corresponds to lower energy

D. It depends on the color of the light.

E. A single wavelength can have a number of energies

Definition
B. Shorter wavelength corresponds to higher energy
Term

Which of the following colors has the highest energy?

A. Red

B. Orange

C. Yellow

D. Green

E. Blue

Definition

E. Blue

 

(it is closest to Violet which has the highest energy)

Term

Which of the following elements was NOT on our list of those that commonly cause color in minerals?

A. Al (Aluminum)

B. Fe (Iron)

C. Cr (Chromium)

D. Ti (Titanium)

E. V (Vanadium)

Definition
A. Al (Aluminum)
Term
What type of mountain is Mt. St. Helens in Washington state?
Definition
Volcanic mountain
Term
What type of structures/rocks would you expect to see in a "fold and thrust" mountain?
Definition
Folded and faulted rocks.
Term
If you look at a fault and the hanging wall comes up, what type of fault are you looking at?
Definition
Reverse fault
Term
If you're looking at a fault and you notice that the ground on the other side of the fault is moving right, what type of fault are you looking at?
Definition
Right lateral strike slip fault.
Term

If an round object undergoes strain and becomes smaller, what kind of stress has deformed it?

A. increased confining pressure

B. compressional directed stress

C. extensional directed stress

D. shear stress

E. all of the above

Definition
A. Increased confining pressure
Term

Which of the following stresses is the main reason for the formation of "Basin and Range province" in the western US?

A. Increased confining pressure

B. compressional differential stress

C. Extensional differential stress

D. shear stress

E. all of the above

Definition
C. Extensional differential stress
Term

Which of the following is a typical sequence of events during experimental deformation of rock?

A. failure, ductile deformation, elastic deformation

B. ductile deformation, elastic deformation, failure

C. elastic deformation, ductile deformation, failure

D. elastic deformation, failure, ductile deformation

E. none of the above

Definition
D. elastic deformation, ductile deformation, failure
Term
What rock does marble originate from?
Definition
Limestone
Term

Which of the following favors ductile deformation?

A. Lower temperatures

B. Lower confining pressures

C. Slow Strain rate

Definition
C. Slow strain rate.
Term
If you're looking at a fault and the hanging wall is going down, what type of fault are you looking at?
Definition
Normal fault
Term
If you're looking at a fault and the ground on the opposite side of the fault is moving toward the left, what type of fault is it?
Definition
Left lateral strike slip
Term

If an earthquake hits your hometown, which would be the most useful to know if yu are concerned about damage to your home?

A) location of the epicenter

B) location of the focus

C) the magnitude

D) the intensity

E) the type of fault that produced the earthquake

Definition
D) the intensity
Term
 Most earthquakes on Earth are caused by what?
Definition
Faults
Term
What is the actual source of an earthquake called?
Definition
Focus
Term
Not all earthquakes are created by faults, but all faults create earthquakes. True or False?
Definition
False.
Term
Tectonic earthquakes can release a LOT of energy. Where does this energy come from?
Definition
Elastic strain energy stored in the rocks.
Term

Which of the following locations, generates the most earthquakes? 

A. continental edges, like the Andes.

B. continental interiors, like the New Madrid area

C. The ocean basins, like the Pacific.

D. Island groups, like Indonesia.

E. Tectonic plate boundaries, regardless of geography.

Definition
E. Tectonic plate boundaries, regardless of Geography.
Term

All of the following are characteristics of seismic "P-waves", except:

A. Travel faster than S waves.

B. Travel only through solids.

C. Compress and dilate rocks as they pass.

D. It is the first wave received by seismometers.

E. They can travel through the core.

Definition
B. They only travel through solids.
Term

The moment magnitude of an earthquake depends on all of the following except:

A. the total length of the fault from which the earthquake was generated.

B. the size of the area that ruptured on the fault surface

C. the rigidity of the rock

D. the amount of fault displacement during the earthquake

Definition
A. The total length of the fault from which the earthquake was generated.
Term

Which of the following is common threat when an earthquake occurs in water-saturated, unconsolidated material such as in river deltas or old lakes?

A. Fires

B. Landslides

C. Liquefication

D. Tsunami

E. None of the above

Definition
C. Liquefication
Term

Which of the following is thought to be associated with fracturing of rock just prior to a big earthquake?

A. unusually high release of Radon gas

B. Changes in water levels in wells

C. Unusual animal behavior

D. Changes in the electromagnetic field from rocks in the area

E. All of the above

Definition
E. All of the above
Term

 Choose one type of mountain and (a) explain how that type forms and (b) give an example of that kind of 

mountain

Definition

One type of mountain is a fold and thrust belt mountain. These mountains form in areas where the crust

is under compression and is contracting. As a result of the compression, the crust is folded and thrust faults form. As 

folding happens, some area of the crust move upwards (forming a mountain).  When the thrust faults move, the 

hanging wall block moves up, forming a mountain. An example of a fold and thrust mountain is the Rocky

Mountains of western North America

Term
What is a "laterite"?
Definition
A "laterite" is a soil type with a well-develiped leached horizon
Term
Explain how scientists can make long-term predictions for where an earthquake might occur
Definition

Long term predictions of an earthquake can be made based on our understanding of the way faults 

behave. Faults that are creeping do not have earthquake risks. Faults that are locked have the potential to generate 

earthquakes. Locked sections of faults that have not had an earthquake in a long time (called “seismic gaps”) are 

likely to have earthquakes. Locked areas right next to an area that has just had an earthquake are also high risk. 

Finally, if a section of fault has had several earthquakes in the past, the cyclicity of the earthquakes can also be used 

for long-term prediction

Term
Explain briefly how color originates in most minerals
Definition

Color occurs in most minerals due to selective absorption of certain wavelengths (which correspond to 

certain colors or energies). Only certain elements in minerals are capable of doing the selective absorption; these 

are the “chromophores” such as Fe, Ti, and Cr. These elements have electrons that can jump to higher energy levels 

and absorb certain wavelengths (blue/violet, for example), but when the electrons drop down, they do so in steps 

and emit different (lower energy) wavelengths (like red or infrared/heat). The resulting color we see, is white light 

minus the absorbed color (minus blue/violet in this example), plus any emitted colors (red in this example).

Term

Which soil horizon is our main source of aluminum?

A. O horizon- organic-rich layer

B. A horizon- mineral+organic mixed layer

C. E horizon- zone of leaching and eluviation

D. B horizon- zone of accumulation

E. C horizon- partly weathered regolith

Definition
C. E horizon- zone of leaching and eluviation
Term
If you take a handful of good soil and squeeze it really well, how much would you now have?
Definition
About half a handful since half of good soil consists of water and air
Term
What is the second leading cause of property damage in the U.S.?
Definition
Expansive soils
Term
You notice that a tree on a hill has a weird curved trunk that curves up. What kind of mass wasting can you assume is happening based on that observation?
Definition
Creep
Term

Which of the following is the main product of chemical weathering on the Earth?

A. Clays

B. Feldspar

C. Quartz

D. Limonite

E. Smaller fragments of the original rock

Definition
A. Clays
Term

Which of the following is the main product of mechanical weathering?

A. Clays

B. Feldspars

C. Quartz

D. Limonite

E. Smaller fragments of the original rock

Definition
E. Smaller fragments of the original rock
Term

What is the main cause of creep on a slope?

A. Removal of overlying rock causing expansion and fracturing of rock

B. Excessive rain causing the slope to be unstable

C. Extreme chemical weathering producing very thick soil

D. Cyclic expansion and contraction of the soil by, say, freezing and thawing.

E. Extreme cold such that the ground always remains frozen

Definition
D. Cyclic expansion and contraction of the soil by, say, freezing and thawing.
Term
Although most material from land is transported by streams, what process does the most erosion?
Definition
Mass wasting
Term
If a stream drops 6 meters over a distance of 2 kilometers, what is its gradient?
Definition
3 m/km
Term
The direct factor that controls the competence of a stream is what?
Definition
The Velocity of the stream
Term
Deltas, levees, point bars, braided streams are all depositional features due to what?
Definition
A drop in competence of the stream
Term

Of all of Earth's near-surface water, what percent is groundwater?

 

 

Definition
Less than 1%
Term
What is the main source of drinking water on Earth?
Definition
GROUNDWATER
Term
What is the water table?
Definition
The upper surface of the zone of saturation.
Term
The property of a rock to transmit fluid through its pores is called what?
Definition
The permeability
Term
If the water table at location A is at 200 M above seal level (asl) and at B it is 300 m asl, and the distance between A and B is 1000 m, what is the hydraulic gradient?
Definition
0.1 ((300-200)/1000)
Term
Why are water witches or dowsers successful?
Definition
Groundwater is pretty much everywhere.
Term

Where does most of our aluminum come from? Explain how the aluminum is concentrated.

Definition
Aluminum comes from bauxite, a type of laterite soil. The aluminum is found in the zone of leaching in the soil. As other elements are removed from that zone by leaching, aluminum remains and is thereby concentrated in that horizon. 
Term

What is a “landslide”? Give an example of a landslide type and its definition. Describe one trigger for landslides.

Definition
A landslide is the rapid downslope movement of regolith. An example would be a rockfall. A rockfall is a type of landslide where rock falls freely through the air. One trigger for landslides is earthqukes, as the ground shakes, it can cause regolith to move downslope.
Term

What is creep and what causes it? (Describe and/or sketch how creep works.) What are some lines of evidence that creep is occurring on a slope?

Definition
Creep is the imperceptibly slow downslope movement of regolith. Creep is caused by cyclic expansion and contraction of soil/regolith resulting in net downslope movement. One line of evidence is poles bent downslope.
Term

Describe/sketch the different reservoirs of water on Earth and the processes of water transfer between those reservoirs

Definition
The main reservoirs of water on Earth are: the ocean, atmosphere, glaciers, groundwater and lakes and streams. Processes of water transfer are evaporation (from ocean/lake/stream to atmosphere), transpiration (from plants to atmosphere), precipitation (from atmosphere to ground/ocean/lakes), infiltration (into the ground) and runoff (on surface of earth along streams).
Term

What are the three factors that control the velocity of a stream? Explain/describe the effect of each factor (e.g., “The greater the ?, the faster the velocity”).

Definition

The gradient or slope. The steeper the gradient, the higher the velocity.

The shape of the channel cross section. The less surface area of the channel in contact with water, the greater the velocity.

The size of the channel cross section. The larger the channel cross section, the greater the velocity.

Term

Name and describe one potential problem associated with groundwater.

Definition
One potential problem associated with groundwater is salt water intrusion. If fresh groundwater is pumped out too rapidly near a coastal area, then salt groundwater might be pumped out as it replaces the fresh water.
Term
The idea that the geologic past preserved in rocks can be interpreted in terms of physical and chemical processes operating today is called what?
Definition
Uniformitarianism.
Term
Prior to modern geology, the paradigm that was strongly influenced by the Bible was called...?
Definition
Catastrophism
Term
As one descents into the Grand Canyon, the rocks that one would progressively see.....?
Definition
Get older.
Term
Which of the following structures led James Hutton to the idea of 'geologic cycles'?
Definition
Angular unconformity.
Term
The lithosphere consists of what?
Definition
Crust and uppermost mantle.
Term
The difference between lithosphere and asthenosphere is primarily a difference in what?
Definition
Strength
Term
The main factor causing the strength difference in the lithosphere and the asthenosphere is what?
Definition
Temperature. Lithosphere is cooler while the asthenosphere is hotter.
Term

Which of the following comes closest to the typical speed of the tectonic plates on Earth?

A. a few inches per year

B. a few feet per year

C. a few yards per year

D. a few inches per million years

E a few feet per billion years

Definition
A. a few inches per year
Term

Which of the following plates does not contain any continents?

A. Nazca plate

B. India-Australian plate

C. South American plate

D. Antarctic plate

E. Eurasian plate

Definition
A. Nazca plate
Term
Which type of plate boundary exists/existed between Inda and Asia?
Definition
Convergent boundary
Term
Explosive/violent eruptions are characteristic of which type of plate boundary?
Definition
Convergent boundary
Term
How many different plates are subducting around the Pacific rim to produce the "Pacific Ring of Fire"?
Definition
About half a dozen plates.
Term
Which of the following phenomena best marks the boundaries of the plates?
Definition
Earthquakes
Term

If one were to measure the magnetic inclination preserved in the ancient continental glacial deposits like those preserved in India, the inclination would likely be:

A) nearly vertical

B) nearly horizontal

C) reversed

D) around 45 degrees

E) unrelated to where the glaciers formed

Definition
A) nearly vertical
Term
What type of volcano is Paricutin in Mexico?
Definition
Cinder cone
Term
Why are stratovolcanos or composite volcanoes called such?
Definition
They are composed of both lavas and pyroclastics.
Term

Which of the following combinations of magma composition and volatile content results in violent eruptions?

A) basaltic magma with little water

B) basaltic magma with a lot of water

C) granitic magma with little water

D) granitic magma with a lot of water.

E) none of the above

Definition
D) Granitic magma with a lot of water.
Term

Which of the following combinations of magma composition and volatile content results in thin, long lava flows?

A) basaltic magma with little water

B) basaltic magma with a lot of water

C) granitic magma with little water

D) granitic magma with a lot of water

E) none of the above

Definition
A) basaltic magma with little water
Term

What is thought to be the cause of the "Year with out a summer" in 1816?

A) the eruption of Tambora in Indonesia

B) the eruption of Yellowstone "super volcano"

C) the eruption of Siberian flood basalts

D) the eruption of Mt. St. Helens

E) a relatively small meteorite impact

Definition
A) the eruption of Tambora in Indonesia
Term

Which of the following is thought to have caused the largest extinction on the planet?

A) a large pre-historic eruption of Yellowstone caldera

B) The Deccan flood basalts in India

C) The eruption of Long Valley caldera

D) all of the above

E) none of the above

Definition
E) none of the above
Term
A plutonic body that is tabular and cuts across structures in the surrounding rock is called a what?
Definition
A dike
Term

Based on plate tectonics, which of the following statements is true about California?

A) it will sink into the ocean

B) earthquakes will eventually cause volcanos

C) it is drifting towards the center of the U.S. pushing up mountains in Nevada

D) it's western side will separate and eventually collide with Alaska

E) because it is above a hot spot it will remain in place

Definition
D) it's western side will separate and eventually collide with Alaska
Term

The area of the Red Sea is an example of which of the following?

A) divergent

B) convergent

C) transform

D) hot spot

E) collision zone

Definition
A) divergent boundary
Term
What is "Shiprock" in New Mexico?
Definition
Shiprock is a volcanic neck
Term
What is the most common way that magma forms?
Definition
The addition of water to the matle lowering the melting point and melting of the mantle due to pressure release
Term
The deepest part of the ocean floor, along the Marina trench is due to what?
Definition
a depression due to the down bending of the plate as it subducts
Term
The core of the Earth is mostly made up of what?
Definition
Iron
Term
A global map of earthquakes would mostly look like what?
Definition
A map of the tectonic plates
Term
Approximately how many major tectonic plates are there on Earth?
Definition
Around a dozen
Term
The Arabian plate is moving roughly northward. On its west side, where the Dead Sea is, what type of plate boundary would you expect?
Definition
Transform boundary.
Term

If an area of a continent contains a lot of limestone, what would you expect the magnetic inclination of those limestones be?

A) nearly horizontal

B) about 30 degrees

C) about 60 degrees

D) nearly vertical

E) there is no expected relationship between abundant limestone and the magnetic inclination

Definition
A)  nearly horizontal (because it's by the equator)
Term

If an area of a continent contains a lot of volcanic rock, what would you expect the magnetic  inclination to be?

A) nearly horizontal

B) about 30 degrees

C) about 60 degrees

D) nearly vertical

E) there is no expected relationship between abundant volcanic rocks and the magnetic inclination

Definition
E) there is no expected relationship between abundant volcanic rocks and the magnetic inclination
Term
If one determines the relative position of the magnetic pole relative to a continent as it changes through time (as determined from the paleomagnetism of the rocks) one gets an "apparent polar wander path". The aparent wandering of the magnetic pole is due to what?
Definition
the motion of the continent which contains the rocks
Term
The most common first phenomenon that usually indicates that a volcano is undergoing unrest and may erupt is what?
Definition
Volcanos
Term
The volcanic phenomenon/product that can travel the farthest distance is what?
Definition
Ash fall
Term
The deadliest volcanic phenomenon is what?
Definition
Lahar
Term
The largest mass extinction on Earth, the "Permian-Triassic" mass extinction, was caused by what?
Definition
A flood basalt eruption
Term
The rocks in Yosemite National Park are mainly part of what?
Definition
a batholith
Term
The cause of melting that generates magma at a divergent boundary is what?
Definition
Decompression melting
Term
The part of the Earth that melts at subduction zones is:
Definition
the asthenosphere
Term
The cause of melting at subduction zones is:
Definition
addition of water that lowers the melting point
Term
After a large explosive volcanic eruption like Pinatubo, the initial effect of the Earth over the following few years is what?
Definition
A cooling down of global temperatures
Term
How and why magmas are generated at divergent plate boundaries?
Definition
Higher pressures prevent melting because higher pressures favor denser solids instead of less dense magma/liquid. If the pressure is reduced, it will favor melting but the temperature DOES NOT CHANGE. The increased pressure melts the mantle to produce basalt magma. At divergent plate boundaries, the lithosphere is pulled apart and thinned out, which lowers pressure causing melting.
Term
How and why magmas are generated at subduction zones?
Definition
At a subduction zone, one plate sinks underneath another and goes back into the asthenosphere. when it does that the seawater that is held in the minerals in the oceanic crust is released which lowers the melting point and causes the asthenosphere mantle to melt.
Term
The particle in an atom that carries the positive charge is what?
Definition
proton.
Term
The particle in the atom that carries the negative charge is the what?
Definition
Electron
Term

An element is defined by the number of which of the following particles?

A) cation

B) anion

C) proton

D) neutron

E) electron

Definition
C) protons
Term

Which of the following chemical bonds is the strongest (other things being equal)?

A) covalent bonds

B) ionic bonds

C) metallic bonds

D) van der Waals bonds

E) not necessarily any of the above

Definition
A) covalent bonds
Term

Which of the following minerals is used directly in the manufacture of glass?

A) gypsum

B) mica

C) feldspar

D) clay

E) diamond

Definition
C) feldspar
Term

Which of the following minerals is used directly in the manufacture of drywall?

A) gypsum

B) mica

C) feldspar

D) clay

E) diamond

Definition
A) gypsum
Term

Which of the following is an atom that has lost one of more electrons?

A) cation

B) anion

C) proton

D) electron 

E) neutrons

Definition
A) cation
Term
What is the most abundant element in the Earth's crust?
Definition
A) oxygen
Term
What two elements make up the silica tetrahedron?
Definition
Si and O
Term
How many anions are there around the central cation in the silica tetrahedron?
Definition
4
Term
The aluminum cation is similar in size to the silicon cation. How many oxygen anions are likely to be able to surround the aluminum cation?
Definition
Four
Term
The two properties that are essential for something to be called a mineral are:
Definition
crystalline and naturally occuring
Term
Which of the following is true of ANY element?
Definition
It wants to achieve a complete outer electron shell
Term

Which of the following frequencies of electromagnetic radiation has the shortest wavelength?

A) 100 Hz

B) 10 GHz

C) 50 MHz

D)10 Hz

E) 1 GHz

Definition
B) 10 GHz
Term

Which of the following has the longest wavelength?

A) visible light

B) x-rays

C) gamma rays

D) ultraviolet rays

E) radio waves

Definition
E) radio waves
Term

Which of the following describes the relationship between the energy of light and color?

A) a single color can have more than one corresponding energy

B) shorter wavelengths (violet end of spectrum) have lower energies

C) longer wavelengths (red end of spectrum) have higher energies

D) the energy is indepenedent of wavelength

E) none of the above

Definition
E) none of the above
Term

Which of the following explains why elements like Cr, Fe, V, and Ti, are capable of causing color in minerals?

A) they absorb certain wavelengths of light and emit other wavelengths

B) they have a strong tendency to form metallic bonds

C) they are found in every mineral and therefore are the most widespread cause of color

D) they are small cations that can fit in the crystal structure of most minerals

E) they are neutrally charged and can fit into minerals without requiring bonds

Definition
A) they absorb certain wavelengths of light and emit other wavelengths
Term
In earth science or physics, strain is defined as?
Definition
the deformation one sees in rock
Term
The type of deformation wherein a rock does not return to its original shape and the rock does not fracture is
Definition
Ductile deformation
Term
What is the effect of temperature on the style of deformation of rock?
Definition
Higher temperatures promote ductile behavior
Term
What is the role of confining pressure on the style of deformation of rock?
Definition
higher confining pressure promotes ductile behavior
Term

Under similar conditions of pressure and temperature, limestone will behave more <blank> compared to granite.

A) brittle

B) ductile

C) strong

D) elastic

E) A and B

Definition
B) ductile
Term

Why do you think earthquakes are rare at depths greater than a few kilometers below Earth's surface?

A) because there is magma everywhere at depth preventing earthquakes

B) because earthquakes can only be generated in the mantle

C) because mountains need to be present for earthquakes to occur

D) because water is required to generate earthquakes

E) because brittle faults tend to be confined to areas of lower confining pressure

Definition
E) because brittle faults tend to be confined to areas of lower confining pressure
Term
If the hanging wall of a fault moves down relative to the footwall, what type of fault is it?
Definition
Normal fault
Term
Which fault would result from extension, pulling of the crust apart?
Definition
Normal fault
Term
Which fault would you expect to find in a region that has a lot of folding?
Definition
Reverse fault
Term
The Basin and Range Province of the U.S. and Mexico is due to which type of fault?
Definition
Normal fault
Term

All of the following are, or are part of, a fold-and-thrust mountain belt except:

A) Mt. St. Helens

B) Mt. Everest

C) the Alps

D) the Appalachians

E) the mountains in east Turkey

Definition
A) Mt. St. Helens
Term

Which of the following is a measure of the amount of damage that occurs at a particular place due to an earthquake?

A) focal power

B) intensity

C) epicentral distance

D) magnitude

E) elasticity

Definition
B) intensity
Term

Which of the following is NOT a factor that goes into calculating the moment magnitude of an earthquake?

A) maximum acceleration at the epicenter

B) area of fault that slipped

C) amount of fault displacement

D) rigidity of the rocks at the fault

E) none of the above

Definition
A) maximum acceleration at the epicenter
Term
Why is there an upper limit to the size of an earthquake?
Definition
Because rocks/faults have an upper limit to their strength or frictional resistance.
Term

Which earthquake is the most expensive (caused the greatest dollar equivalent damage) earthquake in history?

A) 1811 New Madrid earthquake

B) 1556 Shensi, China

C) 1906 San Francisco quake

D) 1995 Kobe, Japan

E) 1960 southern Chile

Definition
D) 1995 Kobe, Chile
Term

Which is the largest earthquake ever recorded?

A) 1811 New Madrid earthquake

B) 1556 Shensi, China

C) 1906 San Francisco quake

D) 1995 Kobe, Japan

E) 1960 southern Chile

Definition
E) 1960 southern Chile
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