lava cave — lava cave, a cave formed when lava hardens at the surface while beneath it flows out from under the hardening crust … Useful english dictionary
lava cave — , lava tube 1. A cave that formed in a partly cooled, broadly basaltic or phonolitic lava, not by erosion but by molten material flowing away. In most cases, an initial active lava conduit is formed when a flowing surface lava stream has a… … Lexicon of Cave and Karst Terminology
lava cave — ▪ geology cave or cavity formed as a result of surface solidification of a lava flow during the last stages of its activity. A frozen crust may form over still mobile and actively flowing liquid rock as a result of surface cooling. A… … Universalium
cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… … Universalium
Cave — For other uses, see Cave (disambiguation). Cavern redirects here. For other uses, see Cavern (disambiguation). Lechuguilla Cave, New Mexico A cave or cavern is a natural underground space large enough for a human to enter. The term applies to… … Wikipedia
Lava tube — ImageStackRight|300 Lava tubes are natural conduits through which lava travels beneath the surface of a lava flow, expelled by a volcano during an eruption. They can be actively draining lava from a source, or can be extinct, meaning the lava… … Wikipedia
lava karst — A non karst term. Subsurface openings formed in lava flows due to outflow of liquid lava from beneath a solidified crust or due to gas blisters. Tubes or tunnels are formed with such pseudokarst features as lava stalactites and also collapse… … Lexicon of Cave and Karst Terminology
lava — Ā, a ā, ā pele (rough lava); pāhoehoe (smooth). Also: lua i pele, ōahi; alā (hard). ♦ Lava flow, ā pele, pele; wa a (rare). ♦ Lava cave, a a ā. ♦ Open place (often with vegetation) surrounded by lava, kīpuka, kīpohopoho … English-Hawaiian dictionary
lava tube — See lava cave … Lexicon of Cave and Karst Terminology
Cave digging — is the practice of enlarging undiscovered cave openings to allow entry. Cave digging usually follows a search of mountains and valleys in karst topography for new caves. Often it takes place underground in places where a large passage has clearly … Wikipedia