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The report includes a review of the general geologic setting of the Ouachita River Valley between Ouachita City, Louisiana, and Arkadelphia, Arkansas, as well as more detailed interpretations and geological maps and sections of the alluvial valley between Ouachita City, Louisiana, and Camden, Arkansas. Within the alluvial valley, construction of new locks and dams is planned at Felsenthal and Calion, Arkansas, as part of the general navitation and flood-control program for this part of the Ouachita River Valley. Ultimately, the construction program, together with additional channel improvements, will provide a navigable channel with a minimum depth of 9 feet and a minimum bottom width of 100 feet as far north as Camden, Arkansas. This memorandum presents analyses developed from review of literature, study of aerial photographs, consultation with personnel of the U.S. Geological Survey (Little Rock, Arkansas), preparation of topographic profiles, and study of boring data obtained by the Corps of Engineers, State Highway Departments of Louisiana and Arkansas, water-well drillers, and petroleum exploration contractors. Interpretations are made of the geologic setting, the stratigraphy, processes of sedimentation, and the influence of structural deformation on the alluvial sediments. These data are of a regional reconnaissance nature and provide only a background for the planning of engineering activities in the valley; specific construction sites should be evaluated through more detailed foundation investigations.
Geochemical Techniques for Identifying Sources of Ground-Water Salinization offers a comprehensive look at the threat to the United States' freshwater resources due to salinization and outlines techniques that can be used to study the problem. The book reviews the seven major salt-water sources that commonly mix and deteriorate our fresh ground water (natural saline ground water, halite solution, sea-water intrusion, oil- and gas-field brines, agriculture effluents, saline seep, and road salting). Other topics covered are the characteristics of saltwater sources, geochemical parameters, and basic graphical and statistical methods that are frequently used in saltwater studies. The book also provides geographical charts showing the distribution of the major salt-water sources, illustrating which ones are potential sources in any given area in the United States.Geochemical Techniques for Identifying Sources of Ground-Water Salinization describes the individual geochemical parameters used in identifying salinization and the information on how and where to obtain them. This is an informative book for anyone interested in the present and future quality of our fresh-water supply.
Cover title: The Goodspeed biographical and historical memoirs of eastern Arkansas.