dolomitization
Sign in to savethumb|Sedimentary layers of dolomitized limestone in an outcrop in the [[Philippines]] thumb|Mountains with dolomite rock formations in northern Italy Dolomitization is a geological process where magnesium ions replace calcium ions in the mineral calcite, resulting in the formation of dolomite.
Wikidata facts
- Image
- Dolomitized marble in marble (Gouverneur Marble, Mesoproterozoic, ~1.1 Ga; Route 11 roadcut north of Antwerp, New York State, USA) 2.jpg
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Article
12 sectionsContents
- Microbes and dolomitization
- Microbial sulfate reduction
- Aerobic heterotrophy
- Chemotrophic sulfate oxidation
- Methanogenesis and anaerobic methane oxidation
- Inhibitors to dolomitization
- Mg<sup>2+</sup> hydration
- Sulfate presence
- Low carbonate activity
- The dolomite problem
- See also
- References
thumb|Sedimentary layers of dolomitized limestone in an outcrop in the [[Philippines]] thumb|Mountains with dolomite rock formations in northern Italy Dolomitization is a geological process where magnesium ions replace calcium ions in the mineral calcite, resulting in the formation of dolomite.
Dolomitization conditions are present in Abu Dhabi, the Mediterranean Sea, and some Brazilian hypersaline lagoons (most notably Lagoa Vermelha Lagoon). The areas where dolomitization take place are limited, as modern seawater is less suited to dolomite formation. This is evident in the noticeable decrease in modern dolomite depositions compared to older depositions. Dolomitization involves substantial recrystallization which can be described by the following equation: 2 CaCO3(calcite) + Mg2+ CaMg(CO3)2(dolomite) + Ca2+