Randolph P. Steinen; SEM observations on the replacement of Bahaman aragonitic mud by calcite. Geology ; 10 (9): 471–475. doi: https://doi.org/10.1130/0091-7613(1982)10<471:SOOTRO>2.0.CO;2
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Conversion of Holocene aragonitic mud to calcite microspar occurs in fresh pore waters beneath hammocks on the tidal flats of west Andros Island, Bahamas, to a subsurface depth of 2.7 m. The conversion process involves both dissolution of aragonite and precipitation of calcite as a cement in pre-existing pores and displacive calcite crystallization. Neomorphism of aragonite to calcite with preservation of grain shape has not been observed. Resulting diagenetic products are lithified nodules, composed of well-sorted interlocking rhombs of microspar and of stiff, unlithified calcitic aragonite mud.