Not quite, to my understanding. Imagine a shallow pond that covers a rock maybe halfway up. The top of the pond freezes, forming a sheet of ice that’s attached to the equator of the rock and also floating on top of the liquid water underneath. Eventually this ice sheet breaks into pieces, and wind blows across the top of the ice. With enough surface area on the ice, the wind shear force on the ice is great enough to push the rock along the ground.