Gce Model Questions Vol1 2021 Geography Question 34
Practice objective / multiple choice question 34 from the 2021 Gce Model Questions Vol1 Geography examination.
A metamorphic rock sample contains both garnet and staurolite. Garnet forms at pressures above 0.5 GPa and staurolite at temperatures above 500 °C. The regional geothermal gradient is 30 °C per kilometre and the lithostatic pressure gradient is approximately 0.027 GPa per kilometre. Estimate the minimum depth (in kilometres) at which the rock could have formed.
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About This Question
This is Gce Model Questions Vol1 2021 Geography Question 34. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Geography examination.
Difficulty level: Medium .
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