PHY395S: Problem Set 1: Quantitative Plate Tectonics
Due Thursday, Feb. 3rd at 5:00pm in Drop Box 25.
Note: Q5 & 6 assume a spherical Earth and hence you will need the Euler vectors table
given out in class for these questions and the fact that the radius of the Earth is 6371 km.
Note: Q26 are each worth 3 marks, so the total problem set value is 15 marks.
1)
Read the Problem Set Policy on the course website.
Did you read and understand the
policy? A “yes” should be answered truthfully before continuing with this problem set.
Note: this question is not worth marks.
2)
Flat Earth Plate Motions: Consider the three plates shown in the figure below. All
velocities are in mm/year.
a)
What is the velocity of plate C relative to plate B?
b)
Is the unmarked boundary between B and C a trench or a ridge?
Draw the type
of boundary on the diagram and include the appropriate relative velocity vector
at the boundary.
c)
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 Winter '11
 Stanley
 Physics, Plate Tectonics, the00, TRIPLE JUNCTION, Quantitative Plate Tectonics, cm/year

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