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Effects of urbanization on flood characteristics in Nashville-Davidson County, Tennessee
Herman C. Wibben
1976, Water-Resources Investigations Report 76-121
Streamflow data from 14 basins in Davidson County, Tenn., were extended in time by use of a digital model of the hydrologic system. The basins ranged in size from 1.58 to 64.0 square miles and ranged in extent of manmade impervious cover from 3 to 37 percent. The flood-frequency characteristics...
Uranium in the Cochetopa District, Colorado, in relation to the Oligocene erosion surface
Jerry Chipman Olson
1976, Open-File Report 76-222
In the Cochetopa district, Colorado, the sequence of Mesozoic and Cenozoic events is as follows: development of a relatively smooth, planar erosion surface in Jurassic time; deposition, on this surface, of the Junction Creek Sandstone and Morrison Formation of Jurassic age, followed by deposition of the Dakota Sandstone and Mancos...
Ground-water resources of Wilson County, North Carolina
M. D. Winner Jr.
1976, Water-Resources Investigations Report 76-60
The most important sources of ground water for Wilson County, North Carolina are (1) the sand beds of the Cretaceous aquifer system in the Coastal Plain section in the eastern part of the county and (2) the bedrock aquifer system in the Piedmont section in the western part of the...
Laboratory hydraulic calibration of the Helley-Smith bedload sediment sampler
Leroy Druffel, W. W. Emmett, V.R. Schneider, J. V. Skinner
1976, Open-File Report 76-752
The Helley-Smith bedload sampler operates on a pressure-difference principle and consists of an expanding nozzle, nylon-mesh sample bag , and external components for structural integrity and stability under flow conditions. The Helley-Smith bedload sampler has a hydraulic efficiency, the ratio of the mean velocity in the sampler nozzle to the...
Water resources data for South Carolina, water year 1975
Water Resources Division, U.S. Geological Survey
1976, Water Data Report SC-75-1
Water resources data for the 1975 water year for South Carolina consist of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; and water levels in wells. This report contains discharge records for 56 gaging stations; stage only records for 4 gaging stations;...
Hard rock uranium potential in Alaska
Thomas P. Miller
1976, Open-File Report 76-246
Discussing the potential of "hardrock" (i.e., non-sedimentary type) uranium deposits in a 586,000 mi2 portion of the North America Cordillera is a difficult task compounded by the fact that the remoteness of much of the region and the logistical difficulties have resulted in only reconnaissance geologic information being available for...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: January 1976
J.B. Townshend, J.E. Papp, M.J. Moorman, C.E. Deadmon, S.P. Tilton
1976, Open-File Report 76-300-A
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory;...
Statistical studies of selected trace elements with reference to geology and genesis of the Carlin gold deposit, Nevada
Michael Harris, Arthur S. Radtke
1976, Professional Paper 960
Linear regression and discriminant analyses techniques were applied to gold, mercury, arsenic, antimony, barium, copper, molybdenum, lead, zinc, boron, tellurium, selenium, and tungsten analyses from drill holes into unoxidized gold ore at the Carlin gold mine near Carlin, Nev. The statistical treatments employed were used to judge proposed hypotheses...
Discharge data at water-quality monitoring stations in Arkansas, 1976 water year
R.K. Knott
1976, Open-File Report 77-401
Streamflow data are presented for a network of water-quality monitoring stations operated by the Arkansas Department of Pollution Control and Ecology. Discharge on days of sampling was determined for about 75 of the sites. A summary of those discharges for the water year 1976 is tabulated. Several discharges for miscellaneous...
Geology of the Deep Creek area, Washington, and its regional significance
Robert Giertz Yates
1976, Open-File Report 76-537
This report, although primarily concerned with the stratigraphy and structure of a lead-zinc mining district in northern Stevens County, Washington, discusses and integrates the geology of the region about the Deep Creek area. Although the study centers in an area of about 200 square miles immediately south of the International...
Water resources of the Little Fork River watershed, northeastern Minnesota
John O. Helgesen, Gerald F. Lindholm, Donald W. Ericson
1976, Hydrologic Atlas 551
The Little Fork River watershed is one of 39 watershed units designated by the Minnesota Department of Natural Resources for evaluation of the State 's water resources. Included is an appraisal of the occurrence, quantity, quality, and availability of ground and surface waters. Water resources are not intensively developed anywhere...
Water resources data for California, water year 1975; Volume 3: Southern Central Valley Basins and The Great Basin from Walker River to Truckee River
Water Resources Division, U.S. Geological Survey
1976, Water Data Report CA-75-3
Water-resources data for the 1975 water year for California consist of records of streamflow and contents of reservoirs at gaging stations, partial-record stations, and miscellaneous sites; records of water quality including the physical, chemical, and biological characteristics of surface and ground water; and records of water levels in selected observation...