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GLG110 Homework 2-6

1 of 30

Types of unconformities include

	Nonconformities
	Disconformities
	Angular Unconformities
	All of the above

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2 of 30

The current theory that we now accept as Plate Tectonics was advanced by

	Harry Hess
	J. Tuzo Wilson.
	Alfred Wegener.
	James Hutton.

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3 of 30

The principle of isostasy is based on the idea that Earth’s crust is ________ the mantle

	Stuck to
	Resting on
	Floating on
	More dense than

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4 of 30

An S-wave shadow zone extends 180 degrees around the Earth because

	S-Waves can’t travel through the lower Mantle
	S-Waves can’t travel through the Inner Core
	S-Waves can’t travel through the liquid Outer Core
	S-Waves can’t travel through the solid Outer Core

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5 of 30

A rock that was cut by a fault is

	Younger than the fault
	The same age as the fault
	Older than the fault
	Of indeterminate relationship to the fault

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6 of 30

Metamorphic rocks can form from

	Sedimentary rocks.
	Other Metamorphic rocks.
	Igneous rocks.
	All of the above

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7 of 30

Hazards associated with Plate Tectonics include:

	A) Earthquakes.
	B) Volcanic eruptions.
	C) Droughts.
	D) A and B.

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8 of 30

Tension leads to

	Normal Faults.
	Reverse Faults
	Strike-slip Faults.
	Thrust Faults.

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9 of 30

The principle that states that older rocks are below younger rocks is called the

	Principle of Superposition
	Principle of Faunal Succession
	Principle of Cross-cutting relationships
	Principle of Original Horizontality

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10 of 30

Shifting polarity of the Earth’s magnetic field is called

	Magnetic tectonics
	A positive anomaly
	Magnetic auroras
	Magnetic reversals

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11 of 30

A landslide is an example of

	balanced resisting and driving forces.
	resisting forces overcoming driving forces.
	friction resisting gravity.
	driving forces overcoming resisting forces.

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12 of 30

A mantle plume or hot spot is

	A place where there is a volcano.
	a place where hot mantle material rises in a stationary and semi-permanent plume.
	a place where hot mantle material rises in an always moving, semi-permanent plume.
	A place where there are mountains.

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13 of 30

An accretionary wedge forms at a

	Hot Spot
	Divergent Boundary
	Transform Boundary
	Convergent Boundary

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14 of 30

How does the lithosphere differ from the asthenosphere?

	The lithosphere is stronger than the asthenosphere.
	The asthenosphere is part of the core, while the lithosphere is part of the mantle.
	The asthenosphere is cooler than the lithosphere.
	The asthenosphere is much less dense than the lithosphere.

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15 of 30

How have scientists been able to determine the layers within the Earth?

	Deep core drilling has extended to deep within the mantle.
	The layers are inferred from the study of exotic rocks at Earth's surface and those of large meteorites.
	The refraction and disappearance of seismic waves provide information about the nature of the different layers and zones.
	They have been determined by exploring other similar planets.

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16 of 30

Transform plate boundaries are marked by

	Stratovolcanoes
	Plates sliding past each other
	Deep ocean trenches
	Two plates moving away from each other

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17 of 30

The occupants of the island of Japan can expect to experience

	Shallow, intermediate and deep focus earthquakes
	Hot spot volcanics
	Shallow focus earthquakes only, associated with magma movement
	Paleomagnetic reversals

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18 of 30

At convergent plate boundaries,

	The plate of higher density subducts into the mantle.
	The plate of lower density subducts into the mantle.
	New oceanic crust is created.
	Basaltic volcanoes erupt.

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19 of 30

The Hawaiian Islands chain is oldest to the west and progressively younger to the east. This indicates that the Pacific Plate is moving

	East
	West
	North
	South

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20 of 30

Mountains form when

	Continental crust plows through oceanic crust.
	Earth wrinkles as it shrinks.
	The crust is dragged by lunar gravity waves.
	Continental plates collide.

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21 of 30

As a mountain chain erodes,

	Sea level rises as volumes of sediment displace water.
	The elevation of the mountains may rise due to isostasy.
	The elevation decreases by the amount of the erosion.
	The elevation decreases by twice the amount removed by erosion.

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22 of 30

Which of the following minerals will be most vulnerable to breakdown in the chemical weathering environment?

	Quartz
	Clays
	Gold
	Feldspar

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23 of 30

In an ionic bond,

	Chains or sheets of atoms are held together by weak forces.
	Atoms are joined by electrical charges.
	Electrons are shared between all atoms in a solid mass.
	Electrons are shared between a limited number of atoms.

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24 of 30

The largest class of minerals is:

	Carbonates.
	Sulfides.
	Silicates.
	Oxides.

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25 of 30

The biggest difference between a gabbro and a basalt is

	Their chemical compositions
	The temperatures and pressures that generated the magma
	The size of their crystals
	The plate tectonic setting in which they form

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26 of 30

Which of the following rocks will not form at the surface of the Earth?

	Slate
	Shale
	Sandstone
	Basalt

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27 of 30

Which of the following is NOT a good test for identifying a mineral?

	Streak
	Color
	Hardness
	Specific Gravity

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28 of 30

Subdisciplines in Geology include

	A) Paleontology
	B) Chemistry
	C) Stratigraphy
	D) A and C

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29 of 30

If you conduct an experiment and discover that your hypothesis is false, you

	Construct a new hypothesis.
	Give up
	Test again.
	Ask a different question.

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30 of 30

A basalt flows across an undulating landscape formed on limestone. The contact will be called a/an

	Fault
	Angular unconformity
	Joint
	Nonconformity