• psud@aussie.zone
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      9 hours ago

      People called the stuff on the surface “lava”

      Scientists called the stuff the crust floats on “magma”

      Science needed to draw a line for when magma becomes lava, they chose when it reaches the surface

      Calling the stuff lining your underground lair lava is about as bad as calling the Moon a planet

    • Deathray5@lemmynsfw.com
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      4 days ago

      It does determine the rock type after settling. Lava becomes extrusive rocks (typically weaker because crystals have less time to form) were as magma because intrusive rocks (stronger like granite)