Ocean 115 - Introduction to Oceanography » Spring 2022 » Yellowstone

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Question #1
What is unusual about Yellowstone National Park?
A.   It is home to the largest diversity of wildflowers
B.   Its strange geology
C.   Its large animals can only live at its 8,000 foot elevation
D.   It sinks a more than a foot per year causing groundwater to shoot to the surface
Question #2
Why is Old Faithful so reliable in its eruptions?
A.   River water slowly fills the reservoir under the crust and heats up with hot rock underneath.
B.   Glacial melt water continually fills the basin, hot rock heat the water, water pressure drops, and then thousands of gallons of water turn to steam and blast into the air.
C.   Rainwater continually fills the basin, hot rock heat the water, water pressure drops, and then thousands of gallons of water turn to steam and blast into the air.
D.   It is actually not faithful but erupts irregularly.
Question #3
What is the source of the quartz in the hot springs?
A.   Erosion of old granite rock units
B.   Hot molten lava flow originating from deep below the earth crust, slow cooled and making its way towards the surface.
C.   Glacial deposits from the north
D.   Metamorphism of old beach deposits due to the high temperature of the hot springs
Question #4
What does lodge-cone pine grow on?
A.   Granite
B.   Rhyolite
C.   Sandstone
D.   Basalt
E.   Limestone
Question #5
What did scientists find in the soils of California?
A.   Large boulders blasted away from Yellowstone
B.   Ejected bones of bison from an earlier Yellowstone super eruption
C.   Volcanic ash from last Yellowstone super eruption, 640,000 years ago
D.   Basalts that flowed down to California from the Yellowstone volcano
Question #6
How much bigger is Yellowstone’s eruption when compared to the 1980 eruption of Mt St Helens?
A.   250 times
B.   10 times
C.   5 times
D.   2500 times
E.   100 times
Question #7
How does the crater of Yellowstone form?
A.   The crater of Yellowstone formed because there was a giant reservoir of molten rock, which when lava erupted, the ground around collapsed and fell through
B.   By subsidence caused by the piling up of heavy rock
C.   Yellowstone crater formed from a meteor impact that killed off the Ice Age mammals
D.   By basalt flows down cutting the slopes of the volcano
Question #8
What is the average age difference between each Yellowstone crater?
A.   50,000 years
B.   A few million years
C.   150,000 years
D.   1000 years
E.   800,000 years
Question #9
What does the V shape plot of the earthquakes indicate?
A.   It shows that pressure has been relieved in the volcano making an eruption unlikely to happen in the future
B.   It shows that the pressure has increased making an eruption likely in the next ten years
C.   It shows that the volcanic hot spot is shifting to the left
D.   It shows that the North American plate is moving
Question #10
What happened in early 2009 in Yellowstone?
A.   More than 500 earthquakes in 10 days
B.   Yellowstone rose over 3 feet in elevation
C.   Yellowstone erupted
D.   Toxic gas killed off 60% of the park’s wildlife
Question #11
What do the waters of Yellowstone lake show?
A.   Subsidence, the lake floor is sinking
B.   Uplift, you can now see a sunken boat on the surface
C.   Carbon dioxide is released into the lake preventing any fish from living in it
D.   Isostatic rebounding is allowing the lake to rise as the glaciers melt
Question #12
What is causing this?
A.   The magma chamber is rising and pushing the ground up
B.   So much human trash is causing the lake level to change
C.   No one knows right now
D.   Sediment is piling up quickly causing the lake floor to sink
E.   Isostatic rebound
Question #13
When could Yellowstone erupt again?
A.   Not for 200,000 years
B.   The magma is cooling so fast it no longer can erupt
C.    Not for 10 million years
D.   It could be tomorrow or 10 to 100 thousand years from now. We cannot really tell
E.     
F.    Not for 2 million years

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