The north coast of Jamaica possesses a highly variable topography which reflects tectonic displacement of Pleistocene rock units. Holocene reef development is intimately related to the underlying Pleistocene rocks and reflects such variation in basement morphology. Underwater surveys have established that two adjacent reef areas, the East and West Fore Reefs at Discovery Bay, Jamaica, exhibit contrasting bottom profiles which are due to differential offset of the underlying Pleistocene shelf carbonates....