8.2.2 Practice: The Yellowstone Supervolcano Practice Assignment Earth Science (S1392846) Dakota
1,211 views
Skip to first unread message
dhurloc...@gmail.com
Dec 10, 2012, 1:11:46 PM12/10/12
to plc-eart...@googlegroups.com
Print
8.2.2 Practice: The Yellowstone Supervolcano
Practice Assignment
Earth Science (S1392846)
Dakota Hurlocker
Points possible: 50
Date: ____________
Answer the following questions thoroughly.
1. Draw a diagram of a volcano. Make sure you label the magma chamber, central vent, side vents, and crater. (5 points)
2. What are three characteristics of magma that cause a volcano to have a huge eruption? (12 points)
Gas is part of the magma and gets released during the eruption.
Magma, once it is above ground, is called lava. Lava from one volcano might act very differently from lava from another volcano, based on the viscosity of the lava.
And finally, tephra is the solid material that gets ejected, like ash and rock.
3. Volcanoes are able to form in several different plate-tectonic settings.
A. How does a hot-spot supervolcano (such as Yellowstone) form? (5 points)
At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.
B. What type of volcano is Mount Saint Helens? (2 points)
Mount St. Helens, an active stratovolcano, is of the composite type.
4. Most hot-spot volcanoes erupt through oceanic crust.
A. Do these hot-spot volcanoes tend to erupt more explosively than other volcanoes? (5 points)
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain.
The more explosive volcanoes are those with a blocked magma chamber that builds pressure under a solid surface. Hotspot volcanoes tend to be less explosive because most are on the seafloor.
B. What is an example of a hot-spot volcano that supports your answer? (4 points)
An example of a hotspot is the one operating under Hawaii, and others in the string, which are all formed from the same hotspot, but have moved along due to tectonic movement.
5. (10 points) Why do oceanic hot-spot volcanoes often form a long line of volcanic islands?
Because the lithospheric ocean plate moves with plate tectonics over the stationary mantle based hot spot, forming a series of volcanoes.
6. The Internet is flooded with information on the Yellowstone supervolcano. What are two characteristics you use to determine if Web sites will have accurate information? (4 points)
If it is a subject about which you are totally unfamiliar then you would need to cross reference with other sites. If the information on the second site is in accordance with what you found out then that information is more likely to be correct.
8.2.2 Practice: The Yellowstone Supervolcano
Practice Assignment
Earth Science (S1392846)
Dakota Hurlocker
Points possible: 50
Date: ____________
Answer the following questions thoroughly.
1. Draw a diagram of a volcano. Make sure you label the magma chamber, central vent, side vents, and crater. (5 points)
2. What are three characteristics of magma that cause a volcano to have a huge eruption? (12 points)
Gas is part of the magma and gets released during the eruption.
Magma, once it is above ground, is called lava. Lava from one volcano might act very differently from lava from another volcano, based on the viscosity of the lava.
And finally, tephra is the solid material that gets ejected, like ash and rock.
3. Volcanoes are able to form in several different plate-tectonic settings.
A. How does a hot-spot supervolcano (such as Yellowstone) form? (5 points)
At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.
B. What type of volcano is Mount Saint Helens? (2 points)
Mount St. Helens, an active stratovolcano, is of the composite type.
4. Most hot-spot volcanoes erupt through oceanic crust.
A. Do these hot-spot volcanoes tend to erupt more explosively than other volcanoes? (5 points)
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain.
The more explosive volcanoes are those with a blocked magma chamber that builds pressure under a solid surface. Hotspot volcanoes tend to be less explosive because most are on the seafloor.
B. What is an example of a hot-spot volcano that supports your answer? (4 points)
An example of a hotspot is the one operating under Hawaii, and others in the string, which are all formed from the same hotspot, but have moved along due to tectonic movement.
5. (10 points) Why do oceanic hot-spot volcanoes often form a long line of volcanic islands?
Because the lithospheric ocean plate moves with plate tectonics over the stationary mantle based hot spot, forming a series of volcanoes.
6. The Internet is flooded with information on the Yellowstone supervolcano. What are two characteristics you use to determine if Web sites will have accurate information? (4 points)
If it is a subject about which you are totally unfamiliar then you would need to cross reference with other sites. If the information on the second site is in accordance with what you found out then that information is more likely to be correct.
Ms. Williams
Dec 18, 2012, 6:35:58 AM12/18/12
to plc-eart...@googlegroups.com, dhurloc...@gmail.com
8.2.2 Practice: The Yellowstone Supervolcano
Practice Assignment
Earth Science (S1392846)
Dakota Hurlocker
Points possible: 50
Date: ____________
Answer the following questions thoroughly.
1. Draw a diagram of a volcano. Make sure you label the magma chamber, central vent, side vents, and crater. (5 points)
no drawing
2. What are three characteristics of magma that cause a volcano to have a huge eruption? (12 points)
Gas is part of the magma and gets released during the eruption.
Magma, once it is above ground, is called lava. Lava from one volcano might act very differently from lava from another volcano, based on the viscosity of the lava.
And finally, tephra is the solid material that gets ejected, like ash and rock.
4 points gas
3. Volcanoes are able to form in several different plate-tectonic settings.
A. How does a hot-spot supervolcano (such as Yellowstone) form? (5 points)
At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.
no credti
B. What type of volcano is Mount Saint Helens? (2 points)
Mount St. Helens, an active stratovolcano, is of the composite type.
no credit
4. Most hot-spot volcanoes erupt through oceanic crust.
A. Do these hot-spot volcanoes tend to erupt more explosively than other volcanoes? (5 points)
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain.
5 poin6
Ms. Williams
Dec 18, 2012, 6:36:29 AM12/18/12
to plc-eart...@googlegroups.com, dhurloc...@gmail.com
Ms. Williams
Dec 20, 2012, 3:06:45 AM12/20/12
to plc-eart...@googlegroups.com, dhurloc...@gmail.com
17/50 points. Make corrections...
gas 3 points
no credit copied
3 points copied
no credit
8.2.2 Practice: The Yellowstone Supervolcano
Practice Assignment
Earth Science (S1392846)
Dakota Hurlocker
Points possible: 50
Date: ____________
Answer the following questions thoroughly.
1. Draw a diagram of a volcano. Make sure you label the magma chamber, central vent, side vents, and crater. (5 points)
2. What are three characteristics of magma that cause a volcano to have a huge eruption? (12 points)
Gas is part of the magma and gets released during the eruption.
Magma, once it is above ground, is called lava. Lava from one volcano might act very differently from lava from another volcano, based on the viscosity of the lava.
And finally, tephra is the solid material that gets ejected, like ash and rock.
gas 3 points
3. Volcanoes are able to form in several different plate-tectonic settings.
A. How does a hot-spot supervolcano (such as Yellowstone) form? (5 points)
At 80 kilometres beneath the Earth's surface it's about 1450 °C, say researchers - which, for a supervolcano, is only lukewarm.
no credit copied
B. What type of volcano is Mount Saint Helens? (2 points)
Mount St. Helens, an active stratovolcano, is of the composite type.
no credit copied
4. Most hot-spot volcanoes erupt through oceanic crust.
A. Do these hot-spot volcanoes tend to erupt more explosively than other volcanoes? (5 points)
The source is not as important as the gas content and viscosity. For example, Kilauea in Hawaii doesn't erupt very explosively; it is just a fire fountain.
The more explosive volcanoes are those with a blocked magma chamber that builds pressure under a solid surface. Hotspot volcanoes tend to be less explosive because most are on the seafloor.
3 points copied
B. What is an example of a hot-spot volcano that supports your answer? (4 points)
An example of a hotspot is the one operating under Hawaii, and others in the string, which are all formed from the same hotspot, but have moved along due to tectonic movement.
3 points
5. (10 points) Why do oceanic hot-spot volcanoes often form a long line of volcanic islands?
Because the lithospheric ocean plate moves with plate tectonics over the stationary mantle based hot spot, forming a series of volcanoes.
8 points
6. The Internet is flooded with information on the Yellowstone supervolcano. What are two characteristics you use to determine if Web sites will have accurate information? (4 points)
If it is a subject about which you are totally unfamiliar then you would need to cross reference with other sites. If the information on the second site is in accordance with what you found out then that information is more likely to be correct.
no credit
Williams, Sue
Jan 5, 2013, 8:31:54 PM1/5/13
to plc-eart...@googlegroups.com
--
Reply all
Reply to author
Forward
0 new messages