Please i only need help with QUESTION 4 a, b and c. Give more details. i put all
ID: 114780 • Letter: P
Question
Please i only need help with QUESTION 4 a, b and c. Give more details. i put all the picture so you can have an idea how to answers 4.
thanks.
1.Describe all of the three plate boundaries as to what is happening as shown in the following illustration:
Transform Plate Boundary
Divergent Plate Boundary
Convergent Plate Boundary
2 What is stick slip subduction and how does it lead to a mega-thrust earthquake and tsunami as the Indian Ocean Earthquake and Tsunami of December 26, 2004? Refer to the above diagram in your written answer.
3. Explain the geologic action in specifics that produced the Japan Earthquake and Tsunami of
March 11, 2011. Refer to the following illustration and your narrated presentations:
4. Explain the type of volcano that is found in the plate tectonic boundaries in the above illustrations for questions 1, 2, and 3 (and picture shown above of Mt. Pinatubo erupting and how and why they behave explosively addressing each of the following reasons as they apply to this type of volcano at convergent plate boundaries:
a. Why are there High volatiles content (gases)?
b. Why is there Lower Temperature High viscosity Magma (thick sluggish magma)?
c. Why is there Lower Temperature High viscosity Magma (thick sluggish magma)?
Transform fault Juan Bidge Pacific de Fucade Fuca Oregon plate California an plate Mendocino AETFault © 2012 Pearson Education, Inc.Explanation / Answer
Mt Pinatubo is a strato volcano, aka composit volcano. This type of volcanoes are steep in slope and and they form mostly distructive type of eruption. Mostly pyroclastic flows ares seen rather than lava flow.
A) Felsic magma is rich in water and other volatile content which got added by rocks in mantle. When the pressure is released these dissolved volatile gases get separated from magma. For eg: soda, when we open bottle gases released.
B) in Felsic magma , it has highes amount of silica content which cause maga to be Viscose
C) stroto volcanoes are formed by felsic magmas. It mostly consist of upto 70% of silica content and temperature ranges from 650 to 800. Since temperature is low most of the minerals will be crystalised and many mew minerals will be added from near by rocks. This leads to high viscosity.
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