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Floridan aquifer
The Floridan aquifer is a portion of the principal artesian aquifer that extends into Florida〔
〕 and is composed of carbonate rock and located beneath the coastal regions of the Southeastern United States and is one of the world's most productive aquifers.〔(USGS Ground Water Atlas of the United States HA 730-G )〕 It is under all of Florida as well as large parts of coastal Georgia and areas of coastal Alabama and South Carolina.〔
==History==
In 1936, geologist Victor Timothy Stringfield first identified the existence of Floridan Aquifer in peninsular Florida and referred to the carbonate units as the "principal artesian formations." In 1944, M. A. Warren of the Georgia Geological Survey described an extension of this system in south Georgia and applied the term "principal artesian aquifer" to the carbonate units involved. In 1953 and 1966 Stringfield also applied the term "principal artesian aquifer" to these rocks. In 1955, Garald G. Parker noted the hydrologic and lithologic similarities of the Tertiary carbonate formations in southeast Florida, concluded that they represented a single hydrologic unit, and named that unit the "Floridan aquifer". With additional information collection, more zones of high and low hydraulic conductivity have been identified. As a result, the name Floridan Aquifer has evolved into "Floridan aquifer system", which contains the upper and lower Floridan aquifer.〔http://pubs.usgs.gov/pp/1807/; Williams, L.J., and Kuniansky, E.L., 2015, Revised hydrogeologic framework of the Floridan aquifer system in Florida and parts of Georgia, Alabama, and South Carolina: U.S. Geological Survey Professional Paper 1807, 140 p., 23 pls., http://dx.doi.org/10.3133/pp1807.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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