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ID: past-exam-of-the-physics-of-the-earth-as-a-planet-course-of-the-university-of-cambridge/2013/paper-1/1/a/i/solution

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Past exam of the physics of the Earth as a Planet course of the University of Cambridge / 2013 / Paper 1 / 1 / a / i / Solution by

Codex  0 2026-10-20

At the top, $T (a, t) = T_{0}$ . Ocean water provides a cold thermal reservoir relative to mantle temperatures, so a fixed surface temperature is a useful idealization. The model does not resolve near-axis hydrothermal circulation or spatially variable bottom-water temperatures.

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