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Page 4737, results 118401 - 118425

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Isopach and structure contour maps of the Burro Canyon(?) Formation in the Mesa Golondrina and Mesa de los Viejos areas, Chama Basin, New Mexico
Jennie L. Ridgley
1983, Miscellaneous Field Studies Map 1496-A
In the Chama Basin a wequence of conglomerate, sandstone, and red, gray-green, and pale-purple mudstone occurs stratigraphically between the Upper Jurassic Morrison Formation and Upper Cretaceous Dakota Sandstone. This stratigraphic interval has been called the Burro Canyon Formation by several workers (Craig and others, 1959; Smith and others, 1961; Saucier,...
Isopach and structure contour maps of the Burro Canyon(?) Formation in the Chama-El Vado Area, Chama Basin, New Mexico
Jennie L. Ridgley
1983, Miscellaneous Field Studies Map 1496-C
In the Chama Basin a wequence of conglomerate, sandstone, and red, gray-green, and pale-purple mudstone occurs stratigraphically between the Upper Jurassic Morrison Formation and Upper Cretaceous Dakota Sandstone. This stratigraphic interval has been called the Burro Canyon Formation by several workers (Craig and others, 1959; Smith and others, 1961; Saucier,...
Work plan for the Sangamon River basin, Illinois
J. K. Stamer, Dean M. Mades
1983, Open-File Report 82-693
The U.S. Geological Survey, in cooperation with the Division of Water Resources of the Illinois Department of Transportation and other State agencies, recognizes the need for basin-type assessments in Illinois. This report describes a plan of study for a water-resource assessment of the Sangamon River basin in central Illinois. The...
Alteration and vein mineralization, Schwartzwalder uranium deposit, Front Range, Colorado
Alan R. Wallace
1983, Open-File Report 83-417
The Schwartzwalder uranium deposit, in the Front Range west of Denver, Colorado, is the largest vein-type uranium deposit in the United States. The deposit is situated in a steeply dipping fault system that cuts Proterozoic metamorphic rocks. The host rocks represent a submarine volcanic system with associated chert and iron-...
Ground-water data for selected coal areas in western North Dakota
James D. Wald, Steven W. Norbeck
1983, Open-File Report 83-219
Ground-water data are provided in this report for the Sand Creek-Hanks, New England-Mott, Dickinson, and Bowman-Gascoyne coal areas, western North Dakota. The report contains the following: (1) Maps showing the location of wells, springs, and test holes; the location of wells and test holes where drillers' logs are available; and...
Regional geohydrology of the northern Louisiana salt-dome basin, part IV, hydraulic characteristics of the Wilcox-Carrizo aquifer
G.N. Ryals
1983, Water-Resources Investigations Report 83-4132
The Wilcox Group of Paleocene-Eocence age and the Carrizo Sand of Eocene age compose the Wilcox-Carrizo aquifer. Results of 25 aquifer tests and permeability determinations from 43 sidewall cores show that the hydraulic characteristics of the aquifer are variable. Studies of the Carrizo showed that hydraulic conductivity increased as sand-bed...
Map showing characteristics of lode gold in the Medford 1 degree by 2 degrees Quadrangle, Oregon-California
Norman J. Page, Maureen G. Johnson, Jocelyn A. Peterson
1983, Miscellaneous Field Studies Map 1383-D
About 500 lode gold occurrences, prospects, and mines have been reported from the Medford 1o x 2o quadrangle, Oregon-California. Summary descriptions of individual lode gold deposits and districts which include those occurrences in the Medford 1o x 2o quadrangle have been published by Brooks and Ramp (1968) and Hotz (1971) and by others cited in...
Analytical results for 544 water samples collected in the Attean Quartz Monzonite in the vicinity of Jackman, Maine
W. H. Ficklin, G.A. Nowlan, D. J. Preston
1983, Open-File Report 83-831
Water samples were collected in the vicinity of Jackman, Maine as a part of the study of the relationship of dissolved constituents in water to the sediments subjacent to the water. Each sample was analyzed for specific conductance, alkalinity, acidity, pH, fluoride, chloride, sulfate, phosphate, nitrate, sodium, potassium, calcium, magnesium,...