Ocean 115 - Introduction to Oceanography » Spring 2022 » Yellowstone

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

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