Difference between revisions of "Lava tube"
(→Settlement: Discussion of costs) |
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==Settlement== | ==Settlement== | ||
:''Main article: [[Volcanic cave settlement]]'' | :''Main article: [[Volcanic cave settlement]]'' | ||
| − | Lava tubes are | + | Lava tubes are a proposed site for a long term [[settlement]], providing shelter from [[radiation]] and space that can be converted into habitable areas. The disadvantages is the requirement to reinforce the ceiling so rocks do not fall from a Mars quake, and the cost of building underground rather than on the surface. (A large freight elevator is a necessity.) |
==References== | ==References== | ||
Revision as of 14:55, 24 May 2022
During long-lived eruptions, lava flows tend to become "channeled" into a few main streams. Overflows of lava from these streams solidify quickly and plaster on to the channel walls, building natural levees or ramparts that allow the level of the lava to be raised. Lava streams that flow steadily in a confined channel for many hours to days may develop a solid crust or roof and thus change gradually into streams within lava tubes. Because the walls and roofs of such tubes are good thermal insulators, lava flowing through them can remain hot and fluid much longer than surface flows. Tube-fed lava can be transported for great distances from the eruption sites.[1] Once the eruption ends, the remaining lava drains from the tube, leaving an empty cave.
Settlement
- Main article: Volcanic cave settlement
Lava tubes are a proposed site for a long term settlement, providing shelter from radiation and space that can be converted into habitable areas. The disadvantages is the requirement to reinforce the ceiling so rocks do not fall from a Mars quake, and the cost of building underground rather than on the surface. (A large freight elevator is a necessity.)
