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Geography

Which phenomenon prevents cave formation at greater depths?

A)Increased lithostatic pressure reducing fracture
B)Decreased groundwater calcite saturation levels
C)Elevated geothermal gradient accelerating deposition
D)Reduced concentration of dissolving organic acids

💡 Explanation

Caves form through dissolution, but increased pressure compacts the rock, reducing fracture frequency. Therefore, dissolution via pressure solution is limited by differential stress, rather than a change in chemical composition, because lithostatic pressure rises sharply with depth.

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