I need 2 to 3 paragraphs on the below topic AND replies to 2 peer posts below:
Choose one type of plate boundary and describe an example, including how the plates move relative to each other and what features are associated with them. Then, do the same for an example of one of the three types of volcanoes. Be sure to include where it is found and its eruptive history. Make sure that you do not choose examples that already have been posted by other students. You must come up with a unique choice.
Peer Post 1:
I have selected convergent plates. These are plates that collide together and can either buckle upwards, or one plate will force the other plate down (NOAA, 2013). There are several examples of these types of tectonic plates around the world. The best known is the Himalayan mountain range, home to the famous mountain of mount Everest. This range was formed by the collision of the Indian and Eurasian plates. This main collision, while happing millions of years ago is still colliding today (The Geological Society, n.d.). I found these plates interesting because they often formed some of the mountains we admire today, and so many millions of years ago. It is awesome that such power could make items we see as tranquil today.
The selection of volcano’s is longer then I expected. I found that the type I liked, and most ascetically was stratovolcanoes. This is because of the sloping sides and various shapes these can take due to venting on their slopes. They are also varied in the type of magma when erupting (USGS, 2015). The Stratovolcano I selected was Mt. Mayon, in the Philippines. This is a very active volcano, noted early in 1616, with several recent activities 1993 being most recent (Oregon State University, 2016). Despite this active history, the volcano is a surprisingly symmetrical formation, as seen in the image below. The amount of activity from this volcano I would have expected to see more of a rough figure and instead it’s a very nice uniform shape.
NOAA. (2013). There are three kinds of tectonic boundaries: divergent, convergent, and transform plate boundaries. Retrieved from http://oceanexplorer.noaa.gov/facts/plate-boundaries.html
Oregon State University. (2016). Volcano world: Mayon. Retrieved from http://volcano.oregonstate.edu/mayon
The Geological Society. (n.d.). Continental/continental: the himalayas. Retrieved from https://www.geolsoc.org.uk/Plate-Tectonics/Chap3-Plate-Margins/Convergent/Continental-Collision
USGS. (2015). Glossary-Stratovolcano. Retrieved from https://volcanoes.usgs.gov/vsc/glossary/stratovolcano.html
Peer Post 2:
When deciding to choose a plate boundary for this discussion, I had to do a little bit of research in order to understand what the term means. Out of the three types of plate boundaries that exist, I chose transform boundaries. By definition, transform boundaries are locations where two plates slide past one another. The fracture zone that forms a transform plate boundary is known as a transform fault. Most of these faults are found in the ocean, geographically speaking California’s San Andreas Fault is where many of these plates commonly reside. Thus, eliminating any volcanic activity from occurring because the typical magma sources of an upwelling convection current or a melting plate are not present.
The composite volcanoes, sometimes known as stratovolcanoes, are steep-sided cones formed from layers of ash and lava flows. These types of volcanoes threaten mankind and usually, consider deadly. An example of this type of volcano is Mount Fuji located in Japan. Fuji has erupted at least 16 times since 781 AD. The most recent eruption was in 1707-1708 from a vent on the southeast side of the cone. Five historic eruptions have caused damage, including the 1707-1708 eruption, but no fatalities. Fuji had two large eruptions (VEI=5) in 1050 and 930 BC.
8B-9 – Plate Boundary images and captions. (n.d.). Retrieved from http://geology8b-9.paces.com/Plate+Boundary+images+and+captions
Fuji | Volcano World | Oregon State University. (n.d.). Retrieved from http://volcano.oregonstate.edu/fuji