 This cementation created a band consisting of a thick primary layer of semilithified sediments and thinner discontinuous lenses and layers of similar semilithified sediments beneath it.Later, when erosion of the island's shoreline occurred, the band of semilithifed sediment was exposed within the intertidal zone and the semilithified sediments were cemented into beachrock.As the sediments underlying the eroding shoreline were eroded down to Pleistocene limestone, the beachrock broke into flat-lying, tabular, and rectangular, subrectangular, polygonal, and irregular blocks as observed for modern beaches within the Bahamas by E. Davaud and A. Strasser.