Solved: Geology Quiz


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Question 20

Erosion is the:

movement of weathered material from its source site.
decomposition of rock.
disintegration of rock.
weathering of rock and transportation of sediment.
disintegration of soil.

Banded iron formations consist of alternating thin layers of chert and iron minerals.

 True

 False

Select the correct picture below that would indicate the direction of stress applied to form the foliation seen in the sample of Biotite Mica Schist.

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118572555_2/xid-118572555_2

A

B

C

D

Which orogenic episode in the formation of the Appalachian Mountains is responsible for the accretion of the Piedmont land on which we live on in Northern Virginia?

Grenville
Acadian
Taconic
Alleghenian

Q11

In the picture below, the youngest rocks would occur at

 pic 2.jpg

A
B
C
D

Q12

If a rock melts completely then cools it becomes a(n) ______________ rock. If it becomes hot enough for solid state recrystallization to take place but does not melt it becomes a(n) _____________ rock.
metamorphic, sedimentary
metamorphic, igneous
igneous, metamorphic
sedimentary, metamorphic

Q13

The texture and mineral composition of a metamorphic rock are dependent upon , , ,

Heat temperature fluids metamorphism

Orogenesis includes which of the following processes

folding
faulting
metamorphism
igneous activity
all of the above

The appearance of the mineral garnet in a regionally metamorphosed rock is indicative of the following grade of metamorphism:

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118648539_2/xid-118648539_2

Medium

Melting and recrystallization

Low

High

In the picture below, the oldest rocks would occur at

 pic 2.jpg

A

B

C

D

In the picture below, what type of structure(s) can you identify?

 

Thrust Fault

Normal Fault and Reserve Fault

Overturned fold

Anticline and Syncline

The metamorphic rock in the picture below would be classified as (foliated/nonfoliated) .  The grade of metamorphism that produced this rock would be (low/moderate/high) .  The directed stress applied to this rock in its current orientation would have come from the (top/bottom or left/right) .

 

Question 1


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The increase in temperature that accompanies increasing depth beneath the Earth’s surface is called the

confining temperature
geothermal gradient
heat beneath our feet
foliation temperature

Q19

Question 34

The parent rock for an metamorphic amphibolite is

dark colored igneous rocks such as basalt and gabbro
light colored sedimentary rocks such as quartz sandstone and coquina
dark colored sedimentary rocks such as coal and greywacke
light colored igneous rocks such as granite and rhyolite

Q20

An unconformity occurs at “A” in the picture below between the flat lying sedimentary rocks and the underlying metamorphic rocks.  What type of unconformity is this?

 unconformity test 1.JPG

nonconformity
angular unconformity
disconformity
lack of conformity

Q21

All of Earth’s major mountain systems can be found along __________________ plate boundaries.

convergent
divergent
transform
emergent

Q22

The Grenville Mountains are associated with Rodinia and the Appalachian Mountains are associated with

acadian

The largest exposed area of the North American craton

can be found in the Grand Canyon
can be found in the core of Appalachian Mountains
is the Canadian Shield
is located along the continental shelf of the Atlantic Ocean

The Catoctin Greenstone found in Shenandoah National Park represents

metamorphosed ocean crust from the opening of the Atlantic Ocean
metamorphosed igneous rock from the roots of the Grenville Mountains
metamorphosed sedimentary rock that is rich in green, organic material
metamorphosed ocean crust from the opening of the Iapetus Ocean

Match each letter on the map with the correct Virginia Province.

Physiographic Provinces

1. Coastal Plain C
2. Valley and Ridge A
3. Piedmont B
4. Potomac
5. Shenandoah
6. Plateau E
7. Blue Ridge D
8. Grenville

The Virginia “Fall Line” separates which two provinces?

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118572551_2/xid-118572551_2

B and D
A and D
B and C
A and E

Q26

What sedimentary structure appears in this picture?

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118648124_2/xid-118648124_2

rain drops
worm burrows
cross bedding
ripples

Q27

Detrital (siliciclastic) sediments and rocks are classified by:

mineral composition.
grain size.
the conditions in which they formed.
mineral composition and grain size.
composition, origin, and texture.

Q28

Coal beds originate

in an evaporite basin
from the accumulation of turbidites
in coastal marshes
in a near shore continental shelf  environment

Q29

The fine grained clastic sedimentary rock in the picture that splits easily in layers indicates a quiet water environment of deposition.  Which rock is it?

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118648183_2/xid-118648183_2

conglomerate
sandstone
shale
limestone

Q30

Sediment in the environment of deposition seen in the picture below would have the following characteristics: (select all correct answers; selecting wrong answers will result in a decrease in score)

 sediment.jpg

well rounded
If lithified would form a breccia
If lithified would form a conglomerate
poorly sorted
contain many rock fragments
sub-rounded
well sorted
contains an abundance of evaporite minerals

Q31

The rock cleavage seen in the sample of slate in the picture below…

 slate.jpg

is the result of the realignment of platy minerals such as mica
is the result of high grade metamorphism
occurred during a phase of regional metamorphism during mountain building
would be a representative characteristic of a hornfels metamorphic rock
displays characteristics that show it was originally a mafic igneous rock
occurred during a phase of contact metamorphism
is also referred to as foliation
was produced by compressive stress

Q23

Early oceans on Earth (prior to about 1.8 BY) are thought to be green in color due to the amount of dissolved

silicon
magnesium
iron
sediment

Q24

What name is given to metamorphism that occurs adjacent to a magma chamber?

CC – CC collisional metamorphism
Geothermal metamorphism
Regional metamorphism
Contact metamorphism

Q25

Metamorphic rocks are most common at which type of plate boundary?

divergent
convergent
transform
all are equally likely to have metamorphic rocks

Which gas, that forms a distinct layer in the atmosphere, also protects us from the damaging rays of ultravioletradiation?

carbon dioxide
water vapor
methane
ozone
nitrous oxide
 
What type of fault is represented in the picture below?

 Pic 1.jpg

Normal

Reverse

Strike Slip

Transform

When the Appalachian Mountains were forming, eastern North America was located near the

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118572553_2/xid-118572553_2

North Pole
South Pole
Equator
Prime Meridian

The sedimentary structure seen in the sandstone in the picture below is

https://learn.vccs.edu/bbcswebdav/pid-109011309-dt-content-rid-118647865_2/xid-118647865_2

Horizontal bedding

Ripple marks

Graded bedding

Cross bedding

The layering seen in the sequence of sedimentary rocks in the picture below is referred to as

 bedding.jpg

Bedding

Cleavage

Geologic Pancakes

Sedimentary Facies

The fault in the picture below was produced by what type of stress?

 Pic 1.jpg

extensional
compressional
shear
divergent

Q16

Match the metamorphic rocks with their environment of formation.

 Meta.jpg

Slate A
Phyllite B
Schist C
Gneiss D

Q17

For the following questions, complete the sentence by writing the appropriate metamorphic rock name or feature. Check your spelling!!! The question will be marked wrong if your spelling is incorrect.

A rock formed by the low grade metamorphism of shale is called .SLATE

Metamorphosed sandstone is called . quartzite

The general name given to the planar (linear) fabric present in metamorphic rocks formed under high temperatures and pressure is  foliation

Q18

What type of unconformity appears in the picture below?

 angular unconformity.jpg

nonconformity
disconformity
lateral conformity
angular unconformity

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