Hardened Subtidal Stromatolites, Bahamas

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Science  28 Jan 1983:
Vol. 219, Issue 4583, pp. 385-386
DOI: 10.1126/science.219.4583.385


Hardened, high-relief stromatolites have been discovered along the margins of some Bahamian platforms. They occur in high-energy (tidal) oolitic sand environments in waters ranging in depth from about 1 to 5 meters. Physical stress produced by actively migrating bed forms of oolitic sand appears to exclude grazing gastropods and subsequent community successions, permitting stromatolite growth.