This heating from below causes mantle and/or crustal rock to soften and melt.
(mantle and/or crustal rock; to melt; ) (This heating from below; causes; mantle and/or crustal rock to soften and melt) Context(This heating from below causes,List([0, 30))):(mantle and/or crustal rock; to soften; )
This heating from below causes,List([0, 30))
mantle and/or crustal rock This heating from below mantle and/or crustal rock
to melt causes to soften
mantle and/or crustal rock to soften and melt