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Page 4327, results 108151 - 108175

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Publication Extents

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Bias and precision of selected analytes reported by the National Atmospheric Deposition Program and National Trends Network, 1984
M. H. Brooks, L.J. Schroder, T. C. Willoughby
1987, Water-Resources Investigations Report 87-4050
The U.S. Geological Survey operated a blind audit sample program during 1974 to test the effects of the sample handling and shipping procedures used by the National Atmospheric Deposition Program and National Trends Network on the quality of wet deposition data produced by the combined networks. Blind audit samples, which...
Maps showing distribution of the Middle Cretaceous unconformity in the eastern Gulf of Mexico
L.M. Massingill, R.H. Wells
1987, Miscellaneous Field Studies Map 1984
Several theories on the origin of the Gulf of Mexico basin have been introduced by various researchers (Beloussov, 1970; Freeland and Dietz, 1971; Malfait and Dinkelman, 1972; Wood and Walper, 1974; Pilger, 1978; Buffler and others, 1980; Dickinson and Coney, 1980; Gose and others, 1980; Schmidt-Effing, 1980; Walper, 1980; Schlager...
Aeromagnetic map of the Hells Gate Roadless Area, Gila County, Arizona
R.A. Martin
1987, Miscellaneous Field Studies Map 1644-B
The Hells Gate Roadless Area comprises about 31, 200 acres in the northern part of the Tonto National Forest. It lies beneath the Mogollon Rim between the communities of Payson and Young. The area is roughly a 4 by 15 mi strip along the deeply incised segment of Tonto Creek...
Data-base development for water-quality modeling of the Patuxent River basin, Maryland
G. T. Fisher, R.M. Summers
1987, Open-File Report 87-379
Procedures and rationale used to develop a data base and data management system for the Patuxent Watershed Nonpoint Source Water Quality Monitoring and Modeling Program of the Maryland Department of the Environment and the U.S. Geological Survey are described. A detailed data base and data management system has been developed...