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Micritic mud mounds

Micricitic mud mounds are subcircular domes of micritic calcite that lacks internal structure. Modern examples are up to several hundred meters thick and a kilometer across, and have steep slopes (with slope angles of around 50 degrees). They may be composed of peloids swept together by currents and stabilized by Thalassia grass or mangroves. Bryozoa may also contribute to mound formation by helping to trap sediments.