Subduction Zone
Veteran Member
Magma is molten rock. When it cools it is rock.Oh so magma does not leave rocks on the ground when it cools? I saw a picture in National Geographic of a body encased in...what looks like cement from the eruption of Vesuvius. But you say magma does not leave rocks on the ground...ok... I'll look into that.
Did you think that it was some sort of liquid even after it cooled?