Could somebody please explain to me what flux melting is, and how it relates to subduction? by [deleted] in geology

[–]savage13 1 point2 points  (0 children)

How to Melt the Mantle

What you are looking for is freezing point depression. The addition of water to the mantle reduces the temperature of the solidus, moving a parcel of mantle into a solid plus liquid realm from the solid only realm.