Question 1

Which one of the following would typically have the widest continental shelf?

Accepted Answer

A)  an atoll 
B)  a tectonically passive, trailing continental margin 
C)  a tectonically active continental margin next to a deep ocean trench 
D)  a tectonically passive, mid- ocean ridge and trench system 
A)  an atoll 
B)  a tectonically passive, trailing continental margin 
C)  a tectonically active continental margin next to a deep ocean trench 
D)  a tectonically passive, mid- ocean ridge and trench system

Question 2

_______is/are not part of an ophiolite complex.

Accepted Answer

A)  Intrusive, coarse- grained gabbro 
B)  Basaltic lavas and pillow lavas 
C)  Enriched, unmelted, unstrained mantle lithosphere 
D)  Steeply- inclined, basaltic dykes 
A)  Intrusive, coarse- grained gabbro 
B)  Basaltic lavas and pillow lavas 
C)  Enriched, unmelted, unstrained mantle lithosphere 
D)  Steeply- inclined, basaltic dykes

Question 3

Geologically, __________are actually submerged parts of the continents.

Accepted Answer

A)  coastal guyots 
B)  continental trenches 
C)  abyssal plains 
D)  continental shelves 
A)  coastal guyots 
B)  continental trenches 
C)  abyssal plains 
D)  continental shelves

Question 4

How does the continental rise form?

Accepted Answer

A)  tectonic uplift and tilting of the edge of the continental margin 
B)  deep sea pelagic oozes that drape guyots and seamounts 
C)  outbuilding of major river deltas 
D)  coalescing deep- sea fans built from turbidites 
A)  tectonic uplift and tilting of the edge of the continental margin 
B)  deep sea pelagic oozes that drape guyots and seamounts 
C)  outbuilding of major river deltas 
D)  coalescing deep- sea fans built from turbidites

Question 5

Which method did not contribute significant geologic knowledge about the rocks, structures, and mineral deposits of the mid- ocean ridges?

Accepted Answer

A)  mapping of slices of ocean crust added to the continents by tectonic activity 
B)  geophysical surveys and soundings of the ocean floor 
C)  deep diving submersibles traverses by manned and unmanned subs 
D)  remote sensing and mapping of mineral deposits by satellites 
A)  mapping of slices of ocean crust added to the continents by tectonic activity 
B)  geophysical surveys and soundings of the ocean floor 
C)  deep diving submersibles traverses by manned and unmanned subs 
D)  remote sensing and mapping of mineral deposits by satellites

Question 6

Which one of the following would typically have the narrowest continental shelf?

Accepted Answer

A)  an atoll 
B)  a tectonically passive, mid- ocean ridge and trench system 
C)  a tectonically passive, trailing continental margin 
D)  a tectonically active continental margin next to a deep ocean trench 
A)  an atoll 
B)  a tectonically passive, mid- ocean ridge and trench system 
C)  a tectonically passive, trailing continental margin 
D)  a tectonically active continental margin next to a deep ocean trench

Question 7

Which ocean floor sediment type includes diatom ooze?

Accepted Answer

A)  biogenous 
B)  orogenous 
C)  terrigenous 
D)  hydrogenous 
A)  biogenous 
B)  orogenous 
C)  terrigenous 
D)  hydrogenous

Question 8

On average, the continental shelf is about ______kilometres wide and ______metres deep.

Accepted Answer

A)  400; 2000 
B)  1800; 80 
C)  80; 130 
D)  20; 50 
A)  400; 2000 
B)  1800; 80 
C)  80; 130 
D)  20; 50

Question 9

What are the flattest and most level places on Earth?

Accepted Answer

A)  continental shelves 
B)  oceanic volcanic plateaus 
C)  mid- ocean ridges 
D)  abyssal plains 
A)  continental shelves 
B)  oceanic volcanic plateaus 
C)  mid- ocean ridges 
D)  abyssal plains

Question 10

What geologic studies finally confirmed Darwin's hypothesis that coral atolls all had a volcanic substrate underneath that formed the original platform for corals to colonize?

Accepted Answer

A)  scientific drilling of Eniwetok and Bikini Atolls by the U.S. government in preparation for nuclear weapons tests 
B)  submersible traverses down the flanks of North Atlantic atolls by the C.S.S. Hudson 
C)  exploration drilling of the Great Barrier Reef by Petro Canada for offshore oil production 
D)  seismic imaging of the West Pembina Pinnacle Reefs in the Alberta Basin by Amoco 
A)  scientific drilling of Eniwetok and Bikini Atolls by the U.S. government in preparation for nuclear weapons tests 
B)  submersible traverses down the flanks of North Atlantic atolls by the C.S.S. Hudson 
C)  exploration drilling of the Great Barrier Reef by Petro Canada for offshore oil production 
D)  seismic imaging of the West Pembina Pinnacle Reefs in the Alberta Basin by Amoco

Question 11

Which one of the following statements concerning submarine canyons is not true?

Accepted Answer

A)  They extend from the continental shelf to the base of the continental slope. 
B)  They were cut by streams and rivers during the Pleistocene when sea level had dropped to the base of the continental slope. 
C)  They channel turbidity currents down the continental slope to deeper waters. 
D)  They generally connect across the continental shelf to specific river valleys on land. 
A)  They extend from the continental shelf to the base of the continental slope. 
B)  They were cut by streams and rivers during the Pleistocene when sea level had dropped to the base of the continental slope. 
C)  They channel turbidity currents down the continental slope to deeper waters. 
D)  They generally connect across the continental shelf to specific river valleys on land.

Question 12

How deep is the deepest portion of the ocean floor and what are these regions called?

Accepted Answer

A)  2000 m, submarine canyons 
B)  >10,000 m, trenches 
C)  2500 m, rift zones 
D)  4000 m, abyssal plains 
A)  2000 m, submarine canyons 
B)  >10,000 m, trenches 
C)  2500 m, rift zones 
D)  4000 m, abyssal plains

Question 13

Manganese nodules represent ___________sediment on the seafloor.

Accepted Answer

A)  hydrogenous 
B)  terrigenous 
C)  androgynous 
D)  biogenous 
A)  hydrogenous 
B)  terrigenous 
C)  androgynous 
D)  biogenous

Question 14

The geologic process responsible for the most rugged relief to be found on a passive margin's continental shelf is_________

Accepted Answer

A)  turbidity currents 
B)  glacial erosion and deposition 
C)  eustatic sea level changes 
D)  earthquake induced submarine landslides 
A)  turbidity currents 
B)  glacial erosion and deposition 
C)  eustatic sea level changes 
D)  earthquake induced submarine landslides

Question 15

__________develop where oceanic lithosphere bends downward and sinks into the mantle.

Accepted Answer

A)  Abyssal seamounts 
B)  Rift valleys on mid- ocean ridges 
C)  Submarine canyons 
D)  Deep ocean trenches 
A)  Abyssal seamounts 
B)  Rift valleys on mid- ocean ridges 
C)  Submarine canyons 
D)  Deep ocean trenches

Question 16

______marks the edge of a continent.

Accepted Answer

A)  The highest part of the continental shelf 
B)  The lowest part of the continental slope 
C)  The centre of an abyssal plain 
D)  An offshore, barrier island system 
A)  The highest part of the continental shelf 
B)  The lowest part of the continental slope 
C)  The centre of an abyssal plain 
D)  An offshore, barrier island system

Question 17

Most shelf areas are underlain by continental or oceanic crust?

Accepted Answer

The answer of Most shelf areas are underlain by continental...

Question 18

Seafloor spreading occurs along relatively narrow areas at the crests of oceanic ridges called__________

Accepted Answer

A)  submarine canyons 
B)  rift zones 
C)  seamounts 
D)  trenches 
A)  submarine canyons 
B)  rift zones 
C)  seamounts 
D)  trenches

Question 19

What is the heat source for "black smokers"?

Accepted Answer

A)  biologic heat from thermophyllic bacteria and densely populated vent communities 
B)  chemical oxidation of sulphide minerals below the seafloor 
C)  magmatic heat below the seafloor 
D)  deeply circulating currents of hot, dense ocean brines, deflected to follow the ridge system 
A)  biologic heat from thermophyllic bacteria and densely populated vent communities 
B)  chemical oxidation of sulphide minerals below the seafloor 
C)  magmatic heat below the seafloor 
D)  deeply circulating currents of hot, dense ocean brines, deflected to follow the ridge system

Question 20

Satellites like SEASAT can observe the ocean using to________ measure sealevel to +/- 2 cm and infer the seabed bathymetry from the __________exerted by the variable elevation and mass of seabed features.

Accepted Answer

A)  microwave beams, gravitational pull 
B)  infrared radiation, temperature and heat effects 
C)  surveying telescopes, tidal pull 
D)  accelerometers, magnetism 
A)  microwave beams, gravitational pull 
B)  infrared radiation, temperature and heat effects 
C)  surveying telescopes, tidal pull 
D)  accelerometers, magnetism

Which one of the following would typically have the widest continental shelf?

_______is/are not part of an ophiolite complex.

Geologically, __________are actually submerged parts of the continents.

How does the continental rise form?

Which method did not contribute significant geologic knowledge about the rocks, structures, and mineral deposits of the mid- ocean ridges?

Which one of the following would typically have the narrowest continental shelf?

Which ocean floor sediment type includes diatom ooze?

On average, the continental shelf is about kilometres wide and metres deep.

What are the flattest and most level places on Earth?

What geologic studies finally confirmed Darwin's hypothesis that coral atolls all had a volcanic substrate underneath that formed the original platform for corals to colonize?

Which one of the following statements concerning submarine canyons is not true?

How deep is the deepest portion of the ocean floor and what are these regions called?

Manganese nodules represent ___________sediment on the seafloor.

The geologic process responsible for the most rugged relief to be found on a passive margin's continental shelf is_________

__________develop where oceanic lithosphere bends downward and sinks into the mantle.

______marks the edge of a continent.

Most shelf areas are underlain by continental or oceanic crust?

Seafloor spreading occurs along relatively narrow areas at the crests of oceanic ridges called__________

What is the heat source for "black smokers"?

Satellites like SEASAT can observe the ocean using to measure sealevel to +/- 2 cm and infer the seabed bathymetry from the __exerted by the variable elevation and mass of seabed features.

An Introduction to Geology and Plate Tectonics

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

Exam 2: Minerals: the Building Blocks of Rocks

Which one of the following would typically have the widest continental shelf?

_______is/are not part of an ophiolite complex.

Geologically, __________are actually submerged parts of the continents.

How does the continental rise form?

Which method did not contribute significant geologic knowledge about the rocks, structures, and mineral deposits of the mid- ocean ridges?

Which one of the following would typically have the narrowest continental shelf?

Which ocean floor sediment type includes diatom ooze?

On average, the continental shelf is about ______kilometres wide and ______metres deep.

What are the flattest and most level places on Earth?

What geologic studies finally confirmed Darwin's hypothesis that coral atolls all had a volcanic substrate underneath that formed the original platform for corals to colonize?

Which one of the following statements concerning submarine canyons is not true?

How deep is the deepest portion of the ocean floor and what are these regions called?

Manganese nodules represent ___________sediment on the seafloor.

The geologic process responsible for the most rugged relief to be found on a passive margin's continental shelf is_________

__________develop where oceanic lithosphere bends downward and sinks into the mantle.

______marks the edge of a continent.

Most shelf areas are underlain by continental or oceanic crust?

Seafloor spreading occurs along relatively narrow areas at the crests of oceanic ridges called__________

What is the heat source for "black smokers"?

Satellites like SEASAT can observe the ocean using to________ measure sealevel to +/- 2 cm and infer the seabed bathymetry from the __________exerted by the variable elevation and mass of seabed features.

An Introduction to Geology and Plate Tectonics

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Metamorphism and Metamorphic Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earths Interior

The Ocean Floor

Plate Tectonics: the Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: the Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

Filters

On average, the continental shelf is about kilometres wide and metres deep.

Satellites like SEASAT can observe the ocean using to measure sealevel to +/- 2 cm and infer the seabed bathymetry from the __exerted by the variable elevation and mass of seabed features.