Describe how plate tectonics is related to the formation of volcanoes.
· Which type of plate margin commonly forms volcanoes?
· Name one of the most popular volcanoes in the United States or the world.
Discuss if the volcano is active, and how it has impacted the area.
help
ASAP
To understand how plate tectonics is related to the formation of volcanoes, we need to understand the basic concept of plate tectonics. Plate tectonics is a scientific theory that explains how the Earth's lithosphere (the rigid outer layer of the Earth) is divided into several large and small plates that move and interact with each other over time.
These plates can either move apart (divergent boundary), move towards each other (convergent boundary), or slide past each other (transform boundary). It is at the divergent and convergent plate boundaries where most volcanoes form.
At divergent plate boundaries, the lithosphere is moving apart, creating a gap or rift between two plates. When this happens, magma from the Earth's mantle rises to fill the gap, forming new oceanic crust. The magma reaches the surface through cracks, resulting in volcanic eruptions. Examples of divergent plate boundaries with volcanoes include the Mid-Atlantic Ridge and the East Pacific Rise.
At convergent plate boundaries, the lithosphere is colliding and one plate is subducted (pushed beneath) the other. The subducting plate descends into the mantle, where it undergoes melting due to the high temperatures and pressure. The molten rock (magma) then rises to the surface, creating volcanic activity. This type of plate margin typically forms volcanoes. Examples of convergent plate boundaries with volcanoes include the Ring of Fire around the Pacific Ocean and the Andes Mountains.
Now, let's move to the second part of your question. One of the most popular volcanoes in the United States is Mount St. Helens. Located in Washington state, Mount St. Helens is an active stratovolcano. Its most famous eruption occurred on May 18, 1980, which resulted in the deadliest and most economically destructive volcanic event in U.S. history. The eruption caused the top of the mountain to collapse, releasing a massive blast of volcanic ash, hot gases, and pyroclastic flows. This event led to the loss of many lives, destruction of nearby forests, and significant changes to the landscape.
Since then, Mount St. Helens has continued to exhibit varying levels of volcanic activity. While it is not currently in an eruptive phase, it is still considered an active volcano. Ongoing monitoring and research provide important information about its behavior and help to mitigate the potential impacts of future eruptions. The area surrounding Mount St. Helens has become a valuable site for scientific research and a significant tourist attraction, drawing visitors who are eager to witness its unique geological features.
Take your pick of the site and click on it.
http://www.google.com/search?q=volcanoes&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://www.tulane.edu/~sanelson/geol204/volclandforms.htm
Probably the most famous volcano in the world is Mount Vesuvius.
http://www.cotf.edu/ete/modules/volcanoes/vmtvesuvius.html
http://ancienthistory.about.com/od/pompeii/p/MtVesuvius.htm
I expect the most popular volcano in the U. S. is Kilauea in the Hawaiian Islands. Probably the most popular one in the continental U.S. is Mt. St. Helens.
Name one of the most popular volcanoes in the United States or the world. MT. Saint Helens in Washington State
· Discuss if the volcano is active, and how it has impacted the area.
i am not sure how to answer the next question cant find it
Check this site for Mt. Saint Helens.
http://www.olywa.net/radu/valerie/StHelens.html