Geography • Physical GeographyMedium
What is the primary mineral composition of limestone rocks that makes them highly susceptible to chemical weathering via carbonation in Karst landscapes?
A. Calcium carbonate✓ Correct Answer
B. Hydrated aluminum silicate
C. Magnesium sulfate
D. Silicon dioxide
💡 Solution & Explanation
Limestone consists primarily of calcium carbonate, which dissolves readily through carbonation when acidic groundwater reacts with it, creating distinct Karst topography features like caves and sinkholes. Hydrated aluminum silicate is characteristic of clay minerals instead. This chemical weathering process shapes unique underground drainage systems worldwide.
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