4. Fundamental Planetary Science problem 6-7 Suppose that the shield volcanoes o

Question

4. Fundamental Planetary Science problem 6-7 Suppose that the shield volcanoes on Mars are produced from a partial melting of martian rocks at a temperature of 1100 K. The density is then 10% less dense than that of the surrounding rocks, and the magma will rise up through the surface and build up the 20-km high Tharsis region. Assuming the pressure on the magma chamber below the magma column is equal to the ambient pressure at that depth, calculate the depth of the magma chamber below the martian surface.

Explanation / Answer

Since density of generated rock after volcanic erection is less than 10% of parent rock from which new height of rock is made. Since ew rock have a height of 20km. So that height of parent rock is less than 10% of the height of 20km. So the height of parent rock rock is 18km

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