dedolomitization

dedolomitization

[dē‚dō·lə‚mīd·ə′zā·shən]
(geology)
Destruction of dolomite to form calcite and periclase, usually by contact metamorphism at low pressures.
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References in periodicals archive ?
In the thin section some dolomite rhomb show zoning, filling showing dedolomitization in upper part.
18]O signatures in two analysed limestone interbeds (Marinova 3 and 4), indicate dedolomitization origin of these rocks.
2+] for late diagenetic calcite fillings and dedolomitization processes.
During dedolomitization, Mg, Al, K, Fe and Na were released from the precursor dolomite into the solution.
It has been suggested that dedolomitization and remagnetization proceeded simultaneously and often were coeval with orogenetic processes (Nick & Elmore 1990; Zegers et al.
A major dedolomitization and calcite-filling phase occurred as a result of migration of karst-related meteoric waters into previously dolomitized horizons within the Frasnian carbonate rocks during the final uplift and emergence of the northern part of the Baltic basin.
Karstification without carbonic acid; bedrock dissolution by gypsum-driven dedolomitization.
Historical correlations between discharge and concentrations of specific ions are considered as evidence of active diagenesis, specifically dedolomitization, in rock units of the Blanco River.
Isotopic ratios suggest dedolomitization continues in the present-day (Ellis 1986).
Dedolomitization and the development of rhombohedral pores in limestones.