GEOL 200 Introductory Physical Geology exam
questions and answers 2024 Athabasca
University
, GEOL 200 Introductory Physical Geology exam questions and answers 2024 Athabasca University
The instrument that emits a high-frequency sound beam to measure the depth of the ocean developed
in the 1950s is called the ______________ - CORRECT ANSWER Precision Depth Recorder (PDR)
The method that is used most frequently to investigate sediment and rock layers of the sea floor is
________. - CORRECT ANSWER sound waves
Satellites are used to map the ocean floor because ________. - CORRECT ANSWER the shape of the
ocean surface reflects large features on the seafloor.
The two relatively flat areas on the hypsographic curve represent ________. - CORRECT ANSWER
interior continental areas and abyssal plains on the ocean floor
The correct order of seafloor features from the coast to the mid-ocean ridge is _________. - CORRECT
ANSWER Shelf, slope, rise, abyssal plane
Active continental margins are characterized by which of the following? - CORRECT ANSWER Deep sea
trenches
Characteristics of passive continental margins include which of the following? - CORRECT ANSWER Broad
Continential Shelves
Which of the following features is related to transform faults along mid-ocean ridges?
A) Continental slope
B) Continental shelf
C) Submarine canyon
D) Fracture zone
,E) Continental rise - CORRECT ANSWER Fracture Zone
Directly seaward of the continental shelf is a more steeply sloping region called the ________. -
CORRECT ANSWER Continental slope
Underwater avalanches of muddy water mixed with rocks and debris are ________. - CORRECT ANSWER
Turbidity currents
Submarine canyons were most likely formed by ________. - CORRECT ANSWER erosion by turbidity
currents
Extending from the base of the continental rises into the deep-ocean basins are flat depositional
surfaces called ________. - CORRECT ANSWER abyssal plains
Relatively few abyssal plains are located in the Pacific Ocean due to ________. - CORRECT ANSWER the
presence of convergent active margins
Volcanic peaks on the deep-ocean floor with conical tops are called ________. - CORRECT ANSWER
seamounts
Volcanic features on the ocean floor that are less than 1,000 meters (0.6 miles) tall are called ________.
- CORRECT ANSWER abyssal hills
Along the margins of the Pacific are found most of Earth's ________. - CORRECT ANSWER oceanic
trenches
Older lithosphere is destroyed in association with ________. - CORRECT ANSWER deep sea trenches
, Oceanic ridges and rises result from seafloor spreading along ________. - CORRECT ANSWER divergent
plate boundaries
New lithosphere is produced in association with ________. - CORRECT ANSWER oceanic ridges
Segments of the oceanic ridge system that are gentler and less rugged in slope due to faster rates of
seafloor spreading are called ________. - CORRECT ANSWER oceanic rises
Warm-water (From 30°C to 350°C) hydrothermal vents form ________. - CORRECT ANSWER white
smokers
The direction of motion along a seafloor transform fault is ________. - CORRECT ANSWER the same
direction the plates are spreading
With respect to mid-ocean ridges, transform faults are ________. - CORRECT ANSWER perpendicular to
the ridge axis
Examine the five words and/or phrases and determine the relationship among the majority of
words/phrases. Choose the one option that does not fit the pattern.
A) Global positioning system (GPS)
B) Precision depth recorder (PDR)
C) GLORIA
D) SeaBeam
E) Sea MARC - CORRECT ANSWER E) Sea MARC
Examine the five words and/or phrases and determine the relationship among the majority of
words/phrases. Choose the one option that does not fit the pattern.
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