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Lava tube
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A lava tube, more rarely called a pyroduct or lava tunnel, is a natural roofed conduit along which molten lava flows from a volcanic vent. If lava in the tube drains out, it will leave an empty cave.
Valentine Cave, a lava tube in Lava Beds National Monument, California shows the classic tube shape; the grooves on the wall mark former flow levels.
Valentine Cave, a lava tube in Lava Beds National Monument, California shows the classic tube shape; the grooves on the wall mark former flow levels.
Thurston Lava Tube in Hawaii Volcanoes National Park, Hawaii. The step mark, more visible on the right wall, indicates the depth at which the lava flo
Thurston Lava Tube in Hawaii Volcanoes National Park, Hawaii. The step mark, more visible on the right wall, indicates the depth at which the lava flowed for a period of time.
Rare characteristics of lava tubes are lava pillars. This is the Manjanggul lava pillar located in the Manjanggul lava tubes, on the island of Jeju-do
Rare characteristics of lava tubes are lava pillars. This is the Manjanggul lava pillar located in the Manjanggul lava tubes, on the island of Jeju-do, Korea.
Lavacicles on the ceiling of Mushpot Cave in Lava Beds National Monument
Lavacicles on the ceiling of Mushpot Cave in Lava Beds National Monument
Lunar lava tube
Videos
Lunar lava tubes are lava tubes on the Moon formed during the eruption of basaltic lava flows. When the surface of a lava flow cools, it hardens and the lava can channel beneath the surface in a tube-
Lava tube
…large cooling surface. Other tubes have concentric and radial jointing features. These tubes are infilled due to the low slope angle of emplacement. Lunar lava tubes have been discovered Several holes on the lunar surface, including one in the Marius Hills region, have been observed with angled satellite imagery to…
The Mare Tranquillitatis pit has been associated with a lava tube.
The Mare Tranquillitatis pit has been associated with a lava tube.
Sinuous 50‑km‑long chain of collapse pits transitions into a continuous uncollapsed segment of a lunar lava tube.
Sinuous 50‑km‑long chain of collapse pits transitions into a continuous uncollapsed segment of a lunar lava tube.
Possible post collapse geometry interpretations of stability analyses for half-filled lava tube.
Possible post collapse geometry interpretations of stability analyses for half-filled lava tube.
Full Moon 2010
Full Moon 2010