caldera
Volcanic summit depression
A caldera is a large volcanic crater, typically formed when a volcano collapses into itself after an eruption empties the magma chamber beneath it.
Calderas are much wider than ordinary volcanic vents—sometimes miles across—and may fill with water to form lakes.
Crater Lake in Oregon sits in a caldera formed thousands of years ago.
The term comes from Spanish for cauldron, which describes the basin-like shape.
Molten rock underground
- lavaErupted liquid stone
- eruptionViolent sudden release
- supervolcanoMassive eruption-capable geological formation
- pyroclasticHot eruption debris
geothermal · fumarole · tuff · basalt · andesite · rhyolite · ash · tephra
Impact or volcanic basin
- basinConcave water receptacle
- bowlConcave food container
- amphitheaterOpen-air tiered venue
- collapseSudden structural failure
rim · floor · wall · depression · cavity · hollow · cirque · sinkhole
Original U.S. national park
- SantoriniVolcanic Greek island destination
- KrakatoaIndonesian volcanic island
- Olympus MonsMassive Martian shield volcano
- NewberryChildren's literature honor
Water in volcanic hollow
- waterClear essential liquid
- tarnGlacial mountain pool
- poolCollective fund or basin
- depthDistance below surface
basin · lagoon · hydrothermal · acidic · turquoise · sulfurous · Crater Lake · stratification
magma
Molten rock underground
- lavaErupted liquid stone
- eruptionViolent sudden release
- supervolcanoMassive eruption-capable geological formation
pyroclastic · geothermal · fumarole · tuff · basalt · andesite · rhyolite · ash · tephra · pumice
crater
Impact or volcanic basin
- basinConcave water receptacle
- bowlConcave food container
- amphitheaterOpen-air tiered venue
collapse · rim · floor · wall · depression · cavity · hollow · cirque · sinkhole · vent
Yellowstone
Original U.S. national park
- SantoriniVolcanic Greek island destination
- KrakatoaIndonesian volcanic island
- Olympus MonsMassive Martian shield volcano
crater lake
Water in volcanic hollow
depth · basin · lagoon · hydrothermal · acidic · turquoise · sulfurous · Crater Lake · stratification · hot spring
vast
Extremely great in size
immense · colossal · gigantic · wide · broad · kilometers · miles · diameter · circumference · panoramic
- spacespace, sun, moon, stars, star
- geologybedrock, fault lines, faults, rock, basalt
- landformsmountain, cliff, valley, volcano, mountain ridge
- Southeast AsiaVietnam, Thailand, Cambodia, Laos, Indonesia
- volcanic activityeruption, active, lava, dormant, magma
- volcanoesvolcano, volcanic eruption, Mount Fuji, volcanic eruptions, lava
calderavolcanic cone
Hill formed by eruptions
stratovolcano · volcanic peak · shield volcano · cinder cone · lava dome
calderavolcanic cone
Hill formed by eruptions
volcanic plug · solid · volcanic island · magma chamber · intrusion
- Yellowstone CalderaVolcanic depression in Wyoming