Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
What rock type is typically found in Yellowstone National Park? |
Rhyolite |
|
|
What rock type is typically found in Hawaii Volcanoes National Park?
|
Basalt |
|
|
What rock type is typically found inCrater Lake National Park?
|
Andesite |
|
|
About 2 million years ago, the first volcanic cycle in the Yellowstone region occurred. This was centered in an area called the:
|
Island Park Caldera |
|
|
T/F Yellowstone may be due for more volcanic activity
|
True |
|
|
T/F Earthquakes can change the activity of geysers and hot springs
|
True |
|
|
T/F There were never any glaciers in Yellowstone. |
False |
|
|
T/F Yellowstone is an example of a symmetrical volcanic cone. |
False: Yellowstone is so large that you cannot even detect the caldera except from space |
|
|
What was America's first National Park?
|
Yellowstone |
|
|
What is the typical composition of lava in Yellowstone?
|
Rhyolite
|
|
|
What is the term used for a mountain building event?
|
orogeny |
|
|
What is the name of the large mountain building event that occurred about 60 million years ago and formed the Rocky Mountains?
|
Laramide Orogeny
|
|
|
What theory explains the location of Yellowstone within the continental interior?
|
Hot spot |
|
|
Yellowstone was named for:
|
the yellow color of the rocks along the river |
|
|
The Yellowstone Park Caldera was formed in a catastrophic eruption about how many years ago?
|
600,000 |
|
|
A dark volcanic glass, formed when a lava is chilled quickly, that was useful to Native Americans for spear points and arrow heads is:
|
Obsidian |
|
|
The volcanic rocks of Yellowstone are primarily:
|
Extrusive and high in silica |
|
|
What is the silica-rich material called that is often precipitated around geysers and hot springs in Yellowstone?
|
Sinter |
|
|
The activity associated with the Yellowstone area calderas is generally considered:
|
Violent and characterized by lava of high viscosity |
|
|
Which one of these has the largest caldera?
-Mauna Loa -Kilauea -Crater Lake -Yellowstone |
Yellowstone |
|
|
What is the name given to the type of limestone formed when hot water circulates through limestone, bringing calcium carbonate to the surface and then precipitating it out, often in the form of terraces?
|
Travertine
|
|
|
There is evidence that indicates that there is a shallow body of rhyolite magma beneath Yellowstone. If this cools within the Earth instead of erupting at the surface, what would be the composition of the resulting pluton?
|
Granite
|
|
|
Yellowstone Lake occupies a:
|
Depression within the caldera |
|
|
Which of these pairs of volcanoes is considered to be potentially dangerous supervolcanoes in North America?
|
Yellowstone and Long Valley |
|
|
If the hot spot remains stationary, and the North American plate continues to move southwestward, where might the next caldera in the Yellowstone area form?
|
In the northeast corner of the park |
|
|
How big is the Yellowstone caldera? |
1,200 square miles |
|
|
T/F There is basalt found in Yellowstone |
True: After the rhyolitic eruptions had ejected all the rhyolite, basaltic magma may have moved in to fill the area so the last eruptions may have been basaltic |
|
|
What feature forms as a flow cools and divides up into segments perpendicular to the cooling surface
|
Columnar Jointing (Genbudo :)) |
|
|
Water enters an underground plumbing system or cracks and spaces in the rocks and is heated from a source below, the pressure of the cooler water on top contains the boiling lower water until it all heats and the some of the water on top flows out which reduces the pressure on the bottom, it can turn to steam and blow all of the water out!
|
Geyser |
|
|
What occur when the water is heated but not contained in a tight plumbing system |
Hot Springs |
|
|
What is a steam vent called? |
Fumaroles |
