Back of the envelope in addition to solving the problems below, discuss the typical values and/or ranges for the parameters you will need? (a) how long does it take a thermal perturbation at the base of a craton to reach the sur face? consider what you will need to know to solve this problem (b) the retreat of glaciers at the end of the pleistocene (~10 ka) allowed warmer air tem- peratures to heat the ground. how deep a borehole would we need to observe temper atures undisturbed by warming? assume a diffusivity of 0.8x 10-6 m2 s-1.
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Back of the envelope in addition to solving the problems below, discuss the typical values and/or ra...
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