parts of a volcano Archives Universe Today
Rapid Cooling Of Lava In Which Tiny Crystals Form. Web the lava comes from the upper mantle layer, 30 to 90 miles beneath the surface, and cools within a few weeks.
Web the lava comes from the upper mantle layer, 30 to 90 miles beneath the surface, and cools within a few weeks.
Web the lava comes from the upper mantle layer, 30 to 90 miles beneath the surface, and cools within a few weeks. Web the lava comes from the upper mantle layer, 30 to 90 miles beneath the surface, and cools within a few weeks.