professional geologist, spent a significant time studying the geology of the Bimini Islands for his University of Miami Master's thesis about the geology of the Bimini Islands. Calvert and others identified the samples that they dated from the Bimini Wall as being natural beachrock. Detailed studies by E. Davaud and A. Strasser of Holocene limestones currently exposed on North Bimini and Joulter Cays (Bahamas) reveal the sequence of events likely responsible for creating beachrock pavements like the Bimini Road. First, a complete beach sequence of shallow subtidal, intertidal, and supratidal carbonate sediments accumulated as the shoreline of North Bimini built seaward during part of the Holocene. Once the deposition of these sediments built the North Bimini's shoreline seaward, freshwater cementation of the carbonate occurred at some depth, possibly even a metre or so below sea level, beneath the island's surface. 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 roughly rectangular, polygonal, and irregular blocks as observed for modern beaches within the Bahamas by E. Davaud and A. Strasser. Thinner layers of beachrock underlying the primary bed of beachrock were also broken up as the loose sediments enclosing them and the thicker primary bed were eroded. As the loose sediment was scoured out from under the blocks and other pieces of beachrock by so-called "scour and settling processes", they dropped downward for several metres until they rested directly on the erosion-resistant Pleistocene limestone as an erosional lag. Eugene Shinn discusses a similar, but not identical, process by which the Bimini Road could have been created. The downward movement of large, solid objects by scour and settling processes has been documented by Jesse E. McNinch, John T. Wells, and other researchers. They concluded that large, heavy objects could sink into the sea bottom by several metres without significant lateral movement as the result of scour and settling processes if an erosion-resistant layer of sediment were not encountered. In case of the beachrock blocks composing the Bimini Road and other pieces underlying it, the erosion-resistant layer that limited