Wiktionary
deglaciate
vb. (context of land English) To become uncovered as a result of the melting of a former glacier
Usage examples of "deglaciate".
If so, why shouldn’t the same 30° one-piece shift of the lithosphere have swivelled a largely deglaciated six-million-square-mile southern hemisphere continent from temperate latitudes to a position directly over the southern pole of the spin axis?