limestone formation
Karst terrain feature
A limestone formation is a geological structure composed primarily of calcium carbonate, typically created over millions of years from accumulated marine sediments, shells, and coral.
The term covers features ranging from underground cave systems to exposed cliffs and karst landscapes: The limestone formations in Carlsbad Caverns took millions of years to develop.
Formation can refer either to the process of limestone developing or to a specific geological feature.
- cavesNatural underground chambers
- cave systemInterconnected underground passages
- marine environmentsSaltwater ecosystems collectively
- coral reefCalcium carbonate marine ecosystem
- quarryingOpen-pit stone mining
sedimentation · calcite · fossilized remains · stalactites · underground river · cliffs · erosion · dissolution · sinkholes · tourism · tropical regions · cultural heritage sites · recrystallization · river valleys · aragonite · freshwater springs · weathering · natural arch
limestone formationvolcanic formation
Terrain created by eruptions
lava flow · volcanic rock · metamorphic rock · volcanic cone
limestone formationvolcanic crater
Depression from eruption
lava field · magma chamber · pyroclastic flow · volcanic cone · cinder cone
limestone, lime, limes, limed, liming, limy, limey, stone, stones