limestone formations
Calcite cave structures
Limestone formations are natural geological structures created when limestone—a sedite rock primarily composed of calcium carbonate—is shaped by water, pressure, and time.
The term typically refers to dramatic features like caves, caverns, stalactites, and stalagmites formed through dissolution and redeposition.
The Carlsbad Caverns contain some of the world's most spectacular limestone formations.
Above ground, limestone formations include karst landscapes with sinkholes, cliffs, and distinctive weathered surfaces.
- cenotesWater-filled limestone cavities
- cavesNatural underground chambers
- cliffsSteep natural rock walls
- sinkholesGround collapse cavities
- valleysLow areas between hills
rock formations · natural arches · cave systems · dissolution · sedimentation · travertine · stalactites · coquina · freshwater springs · tufa · ridges · spelunking · fossilization · grottos · sea caves · coral reefs · calcium carbonate · calcification
- geologybedrock, fault lines, faults, rock, basalt
- Egyptian DesertSahara, dunes, oases, sandstorms, arid landscape
- Mulu Cavescave formations, stalactites, stalagmites, cave entrance, cave tours
- Canadian geologyCanadian Shield, Rocky Mountains, Rockies, Appalachians, Sudbury Basin
- landformsmountain, cliff, valley, volcano, mountain ridge
- mountain wildernesspeaks, valleys, ridges, meadows, alpine meadows
limestone formationsvolcanic rock
Cooled magma material
lava flows · obsidian · pumice · metamorphic rock · shield volcanoes