Data for: Breaking up and making up - reworking of Holocene calcarenite platform into rapidly-forming beachrock breccia on a high energy coastline (St. Lucia, South Africa)

At Mission Rocks Beach at the KwaZulu-Natal coastline in South Africa a coastal calcarenite platform is eroded by high wave energy and simultaneously mended by a quickly forming beachrock. The beachrock forms as infill of erosion-structures within and on top of the platform and thus above the intertidal zone. It was investigated regarding its sedimentology, petrogaphy, geochemistry and age to unravel its process of formation. This dataset contains fieldwork documentation in form of photos and sedimentological profiles, petrographic and SEM images and EDX spectra taken from three samples of beachrock.