By Rick M. Spechler

SELECTED REFERENCES

Bradner, L.A., 1999, Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1998: U.S. Geological Survey Open-File Report 99-100, 1 sheet.

Bradner, L.A., and Knowles, Leel, Jr., 1999, Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1999: U.S. Geological Survey Open-File Report 99-608, 1 sheet.

Brown, D.P., Miller, J.A., and Hayes, E.C., 1986, Hydrogeologic data from a test well near Ponte Vedra, northeast St. Johns County, Florida: U.S. Geological Survey Open-File Report 86-410W, 31 p.

Kindinger, J.L., Davis, J.B., and Flock, J.G., 2000, Subsurface characterization of selected water bodies in the St. Johns River Water Management District, northeast Florida: U.S. Geological Survey Open-File Report 00-180, 46 p.

Leve, G.W., 1961, Preliminary investigations of ground-water resources of northeast Florida: Tallahassee, Florida Geological Survey Information Circular, no. 27, 28 p.

Leve, G.W., 1966, Ground-water in Duval and Nassau Counties, Florida: Tallahassee, Florida Geological Survey Report of Investigations, no. 43, 91 p.

Leve, G.W., 1980, Seasonal and annual variations in the potentiometric surface of the Floridan aquifer in Duval County, Florida, 1960-1977: U.S. Geological Survey Water-Resources Investigations Open-File Report 80-164, 1 sheet.

Marella, R.L., 1995, Water-use data by category, county, and water management district in Florida, 1950-90: U.S. Geological Survey Open-File Report 94-521, 114 p.

Marella, R.L., 1999, Water withdrawals, use, discharge, and trends in Florida, 1995: U.S. Geological Survey Water-Resources Investigations Report 99-4002, 90 p.

Meisburger, E.P., and Field, M.E., 1976, Neogene sediments of Atlantic inner Continental Shelf off northern Florida: American Association of Petroleum Geologists, v. 60, no. 11, p. 2019-2037.

Odum, J.K., Stephenson, W.J., Williams, R.A., Worley, D.M., Toth, D.J., Spechler, R.M., and Pratt, T.L., 1997, Land based high-resolution seismic reflection surveys of seven sites in Duval and St. Johns Counties, northeastern Florida: U.S. Geological Survey Open-File Report 97-718, 61 p.

Phelps, G.G., 1994, Water resources of Duval County, Florida: U.S. Geological Survey Water-Resources Investigations Report 93-4130, 78 p.

Phelps, G.G., 2002, Geochemistry and origins of mineralized waters in the Floridan aquifer system, northeastern Florida: U.S. Geological Survey Water-Resources Investigations Report 01-4112, 64 p.

Phelps, G.G., and Spechler, R.M., 1997, The relation between hydrogeology and water quality of the Lower Floridan aquifer in Duval County, Florida, and implications for monitoring movement of saline water: U.S. Geological Survey Water-Resources Investigations Report 96-4242, 58 p.

Popenoe, Peter, Kohout, F.A., and Manheim, F.T., 1984, Seismic-reflection studies of sinkholes and limestone dissolution features on the northeastern Florida shelf, in Proceedings of First Multidisciplinary Conference on Sinkholes: Orlando, Fla., October 15-17, 1984, p. 43-57.

Snyder, S.W., Evans, M.E., Hine, A.C., and Compton, J.S., 1989, Seismic expression of solution collapse features from the Florida platform, in Proceedings of Third Multidisciplinary Conference on Sinkholes, St. Petersburg Beach, Florida, p. 281-297.

Spechler, R.M., 1994, Saltwater intrusion and quality of water in the Floridan aquifer system, northeastern Florida: U.S. Geological Survey Water-Resources Investigations Report 92-4174, 76 p.

Spechler, R.M., 1996, Detection and quality of previously undetermined Floridan aquifer system discharge to the St. Johns River, Jacksonville to Green Cove Springs, northeastern Florida: U.S. Geological Survey Water-Resources Investigation Report 95-4257, 29 p.

Spechler, R.M., and Wilson, W.L., 1997, Stratigraphy and hydrogeology of a submarine collapse sinkhole on the Continental Shelf, northeastern Florida, in Proceedings of Sixth Multidisciplinary Conference on Sinkholes, Springfield, Missouri, April 6-9, 1997, p. 61-66.

Swarzenski, P.W, Reich, C.D., Spechler, R.M., Kindinger, J.L., and Moore, W.S., 2001, Using multiple geochemical tracers to characterize the hydrogeology of the submarine spring off Crescent Beach, Florida: Chemical Geology, v. 179, p. 187-202.

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