Geography • Physical GeographyHard
Which of the following describes a 'Grike' in Karst topography?
A. A deep, vertical cylindrical pipe formed by solution in limestone
B. An enlarged vertical fissure or joint opened by solution in a limestone pavement✓ Correct Answer
C. A residual steep-sided limestone hill rising above a flat plain
D. A large circular collapse depression formed underground
💡 Solution & Explanation
In karst geomorphology, a grike refers to an elongated vertical fissure or joint widened through the chemical dissolution of calcium carbonate by acidic rainwater along joint planes in a limestone pavement. The intersecting system of grikes and intervening blocks known as clints creates a distinctive rocky surface landscape. These features develop most extensively in regions with pure limestone strata and humid temperate climates. Understanding karst landforms is essential for managing subterranean water resources in limestone terrains.
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