Sentences with phrase «rocky mantle before»
The salt likely originated in the moon's rocky mantle before it migrated through the ocean to the surface.
http://discovermagazine.com/ Not exact matches
This represents the stage at which the planet's solid rocky core begins to melt, creating a molten material that sloshes around in Mercury's mantle before erupting onto the surface.
They modelled more complex bodies than have been tried before: rather than just a homogeneous ball, they included more realistic objects with a hard, rocky core surrounded by an icy mantle.