Delray Dolomite is named in Palm Beach Co., southeastern FL, for the village of Delray Gardens near the type well. Unit is the basal formation of the Black Point format, a term used to refer to the carbonate interval between the base of the Miocene Hawthorn and the top of the Paleocene Cedar Keys. The Delray consists of three varieties of dolomite: anhedral, cryptocrystalline, and euhedral. Colors are usually orange-brown, orange-tan, and occasionally tan. The cryptocrystalline dolomite is usually cream-colored and resembles chert. Unit is present everywhere in the FL peninsula except for the northern tier of counties. It may also be absent in the Lower Keys. Thickness ranges from 50 to 375 ft. Conformably underlies Oldsmar Formation or equivalents. Lower boundary with the Cedar Keys is conformable and defined by the change from brown and tan dolomite to gray dolomite. No age data are available. The Delray could be of early Eocene or late Paleocene age.

Source: GNU records (USGS DDS-6; Reston GNULEX).