In the book, Story of Earth-The First 4.5 Billion Years, From Stardust to Living Planet, by Robert Hazen, Chapter 3: He discusses the changing mineral composition of the early Earth's crust from continuous heating, cooling, sinking, and remelting. From mafic magnesium rich dunite, anorthite, pyroxene, peridotite, on to today's predominant more felsic silicon enriched basalt and granite/rhyolite.
As a book directed at laymen, like myself, he does not mention a term for this process of decomposition of the Earth's early crust.
My question then is: What is the term for the process of the early Earth's crust to change its mineral composition over many cycles of melting, rising, cooling and sinking?
Thank you.