FLORIDA GEOLOGICAL SURVEY


Vernon, R. 0.
 1951 (and Puri, H. S.) Geology of Citrus and Levy Counties, Florida:
 Florida Geol. Survey Bull. 33.

Wetterhall, W. C. (see Menke, C. G.)
White, W. A.
 1958 Some geomorphic features of central peninsular Florida: Florida
 Geol. Survey Bull. 41.

Williams, G. R.
 1940 (and others) Natural water loss in selected drainage basins: U. S.
 Geol. Survey Water-Supply Paper 846.



 GLOSSARY

Anticline. An upfold or arch of rock strata, dipping in opposite directions
 from an axis.

Aquiclude. A formation which, although porous and capable of absorbing
 water slowly, will not transmit it fast enough to furnish an appreciable
 supply for a well or spring.
Aquifer. A formation, group of formations, or part of a formation that will
 yield water in usable amounts.
Artesian ground water. Water that is under pressure sufficient to cause it to
 rise above the top of the aquifer in which it occurs.
 Base flow. The discharge entering stream channels from ground water.
 Clastic. Pertaining to fragmental material derived from pre-existing rocks
 transported mechanically into its place of deposition, for example, sand
 and clay.

 Coefficient of permeability. The rate of flow of water, in gallons per day,
 through a cross-sectional area of 1 square foot under a unit hydraulic
 gradient at a temperature of 600 F.
 Coefficient of storage. The volume of water an aquifer releases from or takes
 into storage per unit surface area of the aquifer per unit change in the
 component of head normal to that surface. In artesian aquifers it is re-
 lated to the compressibility of the material comprising the aquifer and of
 the water. In non-artesian aquifers it is primarily related to gravity
 drainage and is approximately equal to specific yield.
 Coefficient of transmissibility. The rate of flow of water, in gallons per day,
 at the prevailing water temperature through each vertical strip of the
 aquifer 1 foot wide having a height equal to the thickness of the aquifer
 and under a unit hydraulic gradient.
 Color. The color of water is due only to materials in solution. Color is de-
 termined by comparison with standard colored disks that are calibrated in
 units according to the platinum-cobalt scale.


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