dedolomitization

[ dee-doh-luh-mahy-tuh-zey-shuh n, -mi-, -dol-uh- ]
/ diˌdoʊ ləˌmaɪ təˈzeɪ ʃən, -mɪ-, -ˌdɒl ə- /

noun Geology, Petrology.

a metamorphic process in which the magnesium in dolomitic rock forms new minerals, as brucite and forsterite, and the calcium forms calcite.

Origin of dedolomitization