final_exam_-_geol_100

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STUDENT’S NAME: _________________________
Multiple Choice – Highlight the correct answer (2 pts. each)
1. What is the study of the layers in sedimentary rocks known as _________.
A) Stratigraphy B) paleontology C) sedimentation D) geochronology
2.
Which of the following is the best statement of the principle of original horizontality?
A)
Igneous intrusions form horizontal layers.
B)
Metamorphic isograds are horizontal before deformation.
C)
Sediments are deposited as horizontal layers.
D)
Most igneous, metamorphic, and sedimentary rocks of crust form horizontal layers.
3.
The principle of superposition states that __________.
A) A fault is younger than the rocks it cuts
B) Sediments are deposited as essentially horizontal layers
C) The present is the key to the past
D) Undisturbed sedimentary layers get progressively younger from bottom to top
4.
Which of the following is used by geologists to determine the relative ages in a rock
sequence?
A) cross-cutting relations B) fossils C) stratigraphy D) all of the above
5.
The study of ancient life forms preserved in the rock record is referred to as _________.
A) Stratigraphy B) paleontology C) geochronology D) zoology
6.
The line formed by the intersection of an inclined sedimentary layer and a horizontal
plane is called the ______.
7.
Geologic maps are used to depict ________.
A)
The strike and dip of the rock units at the Earth's surface
B)
The rock formations exposed on the Earth's surface
C)
The orientation of geologic structures that deform rocks exposed at the Earth's
surface
D)
all of the above
8.
A diagram representing a vertical slice through the Earth's crust is called a _________.
A) Geologic map
C) subsurface picture
B) Geologic model
D) geologic cross section
DIAGRAM for Questions 9, 10, 11
Units A, B, C, D, and E are sedimentary rocks. The thick dark line is a fault.
9.
Based on DIAGRAM ABOVE: When did faulting occur?
A) Between the deposition of A and B
C) between the deposition of B and C
B) Between the deposition of C and D
D) between the deposition of D and E
10.
What is the relative timing between faulting and intrusion of the granite?
A) Faulting occurred after the intrusion of the granite.
B) Faulting occurred before the intrusion of the granite.
C) Faulting and intrusion of the granite occurred at the same time.
D) The relative timing between faulting and intrusion of the granite cannot be
determined from the information provided.
11.
Which of the following units is the oldest?
A) unit A B) unit C C) unit E D) the granite
12.
The absolute age of a geologic event in the rock record is __________.
A) The number of years that has elapsed between the event and the present day
B) The amount of time that has elapsed between the event and the beginning of Earth
history
C) The number of years that has elapsed between the event and the beginning of
human civilization
D) The amount of time that has elapsed between the event and another similar
geologic event
13.
The stratigraphic order of the fossils from animal species is known as the ________.
A) Faunal layering B) faunal succession C) fossil record D) fossil succession
Use the following to answer question 14:
14.
What type of fault is depicted in the cross section above?
A) left-lateral strike-slip fault
C) normal fault
B) Reverse fault
D) right-lateral strike-slip fault
15.
The identity of a rock is dependent on its mineralogy and _________.
A) Shape B) color C) hardness D) texture
16.
Weathering of rocks takes place
A)
B) At the surface of the Earth
C) Both at the Earth's surface and deep in the Earth's crust.
17.
Mid-ocean ridges are also referred to as _________.
A) Spreading centers B) hot spots C) island arcs
D) trench zones
18.
An isl deep in the Earth's crust, and arc forms when there is __________ convergence.
A) ocean-continent
C) continent-continent
B) ocean-ocean
D) none of the above
19.
The convergence of the North American Plate with the Juan de Fuca Plate forms the
______ subduction zone.
A) Marianas B) Andean C) Aleutian D) Cascadia
20.
Mount St. Helens is part of the ____________.
A) Andes Mountains
C)
B) Mid-Atlantic Ridge
D)
Essay Questions: (10 points each).
Himalayan Mountains
Cascade Range
Please answer the following and use a different color for your answers.
1. What is Geology? Provide a brief synopsis of some of the branches of geology that you
had a chance to study in this course, giving examples and explanation of what that branch
is specialized for. Explain the meaning of ‘soft-rock’ geology vs. ‘hard-rock’ geology!
2. What is ‘Rock Cycle’? Describe the members and the processes that are included in the
Cycle. Provide examples of each of the rock type. DRAW a rough sketch of the cycle
with labels.
3. Explain what ‘Ring of Fire’ is and its geographic location around the world. What are the
geologic features closely associated with the Ring of Fire? Explain the occurrence of
these features at this location.
4. What are ‘Renewable’ and ‘Non-renewable’ resources on Earth? Provide a few examples
of these that you have learned. What are some of the impacts to these resources by
humans? If you were responsible for governing resources in our country, what would
your recommendations be for our society going forward?
5. Describe the different kinds of plate boundaries that exist on Earth. Why are they formed
and where do you find them today? Provide examples with a sketch of these if you prefer.
6. Describe in brief the geology of the area where you live. You can go to USGS website
and they will provide a way to find out the geological structures and petrology in your
neck of the woods.
PROVIDE REFERENCES – GOOD LUCK!!!!!
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