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Page 6412, results 160276 - 160300

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Publication Extents

Not all publications have extents, not all extents are completely accurate
A mineral reconnaissance of the Jabal Sahah quadrangle, Kingdom of Saudi Arabia
Jesse William Whitlow
1970, Open-File Report 70-367
A mineral reconnaissance of the Jabal Sahah quadrangle, Kingdom of Saudi Arabia, showed the presence of the anomalous elements silver, beryllium, molybdenum, niobium, tin, and tungsten and of anomalous amounts of chromium, nickel, lead, titanium, and vanadium. All anomalies are low except one for tin and one for tungsten in...
The mineral resources of the Sierra Nevada de Santa Marta, Columbia (Zone I)
Charles McFarland Tschanz, Andres Jimeno V., Jaime B. Cruz
1970, Open-File Report 70-329
The Sierra Nevada de Santa Maria on the north coast of Colombia is an isolated triangular mountain area that reaches altitudes of almost 19,000 feet. The exceedingly complex geology is shown on the 1:200,000 geologic map. Despite five major periods of granitic intrusion, three major periods of metamorphism, and extensive...
Effects of urban development on floods in northern Virginia
Daniel G. Anderson
1970, Water Supply Paper 2001-C
Graphical and mathematical relations are presented to estimate the flood-peak magnitudes having recurrence intervals ranging up to 100 years for drainage basins with various degrees of urban or suburban development. Five independent variables are required for use of the relations. They are the size, length, and slope of the basin,...
Streamflow in the upper Santa Cruz River basin, Santa Cruz and Pima Counties, Arizona
Alberto Condes de la Torre
1970, Water Supply Paper 1939-A
Streamflow records obtained in the upper Santa Cruz River basin of southern Arizona, United States, and northern Sonora, Mexico, have been analyzed to aid in the appraisal of the surface-water resources of the area. Records are available for 15 sites, and the length of record ranges from 60 years for...
Preliminary description of cores, chemical analyses of lignite beds, and map showing locations of holes drilled in Grant, Hettinger, Morton, and Stark Counties, North Dakota
H.L. Smith
1970, Open-File Report 70-308
Nineteen exploratory holes were drilled in Grant, Hettinger, Morton, and Stark Counties, N. Dak. (fig. 1), for the U.S. Geological Survey from June 7 to September 15, 1966. This prospect drilling was undertaken to gather data on the thickness, quality, and extent of lignite beds and the lithologic characteristics of...
Age of the Bedford Shale, Berea Sandstone, and Sunbury Shale in the Appalachian and Michigan basins, Pennsylvania, Ohio, and Michigan
Wallace De Witt Jr.
1970, Bulletin 1294-G
The suggestion by Sanford (1967, p. 994) that the Bedford Shale, Berea Sandstone, and Sunbury Shale of the Michigan basin are of Late Devonian age because these strata contain Hymenozonotriletes lepidophytus Kedo is invalid for these formations in the Appalachian basin, the area of their type localities. Endosporites lacunosus Winslow,...
Ground-water resources of Nelson County, northeastern North Dakota
Joe S. Downey
1970, Hydrologic Atlas 428
This investigation is part of a Statewide program to determine the location and extent of the ground-water reservoirs (aquifers); to evaluate the occurrence and movement of ground water within these aquifers, including the sources of recharge and discharge; and to determine the chemical quality of the ground water.Nelson County covers...
Geology of the north end of the Ruby Range, southwestern Montana
Russell G. Tysdal
1970, Open-File Report 70-333
This study consists of two parts: stratigraphy and sedimentation, and structure of rocks in the northern one-third of the Ruby Range of southwestern Montana. Detailed studies of Cambrian marine dolomite rocks in the Red Lion Formation and in the upper part of the Pilgrim Limestone resulted in their division into...