Martian lava tube [SEP] located on astronomical body
Martian lava tube
Martian lava tubes are volcanic caverns on Mars that are believed to form as a result of fast-moving, basaltic lava flows associated with shield volcanism. Lava tubes usually form when the external surface of the lava channels cools more quickly and forms a hardened crust over subsurface lava flows. The flow eventually ceases and drains out of the tube, leaving a conduit-shaped void space which is usually several meters below the surface. Lava tubes are typically associated with extremely fluid pahoehoe lava. Gravity on mars is
are breakouts of a main lava tube. The largest of these lava tubes is in diameter and has columnar jointing due to the large cooling surface. Other tubes have concentric and radial jointing features. The tubes are infilled due to the low slope angle of emplacement.
Extraterrestrial lava tubes.
By far the largest known lava tubes in the Solar System are on Venus.
Lunar lava tubes have been discovered and have been studied as possible human habitats, providing natural shielding from radiation.
Martian lava tubes are associated with