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Book Chapters

Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 6158

Origin of solutes in saline lakes and springs on the Southern High Plains of Texas and New Mexico Origin of solutes in saline lakes and springs on the Southern High Plains of Texas and New Mexico

Analysis of hydraulic heads, calculation of pore volume flushing, and analysis of solute and isotopic chemistry strongly suggest that the solutes originate from the concentration by evaporation of runoff and potable shallow ground water that discharges from the High Plains aquifer. Chloride/bromide solute ratios, which are thought to be unaffected by mineral precipitation or sorption...
Authors
W. Wood, B.F. Jones

An expert system for prediction of aquatic toxicity of contaminants An expert system for prediction of aquatic toxicity of contaminants

The National Fisheries Research Center-Great Lakes has developed an interactive computer program in muLISP that runs on an IBM-compatible microcomputer and uses a linear solvation energy relationship (LSER) to predict acute toxicity to four representative aquatic species from the detailed structure of an organic molecule. Using the SMILES formalism for a chemical structure, the expert...
Authors
James P. Hickey, Andrew J. Aldridge, Dora R. May Passino, Anthony M. Frank
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