“…First, soil phosphates are analyzed in preexcavation prospecting to locate or delimit archaeological sites before excavation. This has been the most common use of phosphate analysis in archaeology (e.g., Dauncey, 1952;Provan, 1973;Sieveking et al, 1973;Hassan, 1981;Hammond, 1983;Eidt, 1984;Ball and Kelsay, 1992). Second, phosphate analysis is used as a tool in landscape archaeology to examine past agricultural practice (Coultas et al, 1993;Lippi, 1988;Dunning, 1993;Dunning et al, 1997Dunning et al, , 1998.…”