J. T. Mitchell, Lynton S. Land, Donald E. Miser; Modern marine dolomite cement in a north Jamaican fringing reef. Geology ; 15 (6): 557–560. doi: https://doi.org/10.1130/0091-7613(1987)15<557:MMDCIA>2.0.CO;2
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Minor quantities of ordered dolomite (δ18O = +2.0‰ PDB; composition = Ca1.22Mg0.78 [CO3] 2) have formed from near-normal seawater in a subtidal hardground as part of a modern fringing coral reef. Crystals 5 µm in diameter precipitated within the past 1.8 ka in the form of syntaxial fringes on Mg-calcite marine cements and skeletal allochems. The crystals have a fine modulated microstructure and c reflections, both apparently formed during crystal growth.