Question

Why is the rate of weathering higher in limestone in comparison to granite?

Answer 1

The rate of weathering is higher in limestone compared to granite because limestone contains soluble minerals that dissolve easily in water, especially through chemical weathering processes like solution and carbonation. Granite, being harder, less porous, and composed of insoluble minerals like silicates, weathers more slowly. Limestone’s solubility makes it more susceptible to faster chemical weathering than the more resistant granite.