Dolomitization
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Dolomitization is a geological process where magnesium ions replace calcium ions in the mineral calcite, resulting in the formation of dolomite.
Sedimentary layers of dolomitized limestone in an outcrop in the Philippines
Mountains with dolomite rock formations in northern Italy
Microbial mats in Laguna Negra Lake, Argentina
Diagenesis
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Diagenesis is the process of physical and chemical changes in sediments first caused by water-rock interactions, microbial activity, and compaction after their deposition. Increased pressure and tempe
Dolomitization
…rain, which in turn allows for fluctuation in saturation state. Saturation fluctuations can increase dolomite precipitation up to 7 orders of magnitude. Diagenesis Dolomite (rock…
A form of diagenesis is permineralization, in which buried organisms are replaced by minerals. These trilobites (Lloydolithus) were replaced by pyrite during a specific type of permineralization called pyritization.
Originally calcitic crinoid stem (in cross-section) diagenetically replaced by marcasite in a siderite concretion; Lower Carboniferous.