Ocean 115 - Introduction to Oceanography » Spring 2022 » Yellowstone

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

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