Summary appraisals of the nation's ground-water resources – Lower Colorado region
E. S. Davidson
1979, Professional Paper 813-R
This report summarizes ground-water availability in the lower Colorado region and discusses the potential for greater ground-water development and increased efficiency of water use. The climate in the most highly developed southwestern part of the region is warm and dry and that in the northeastern part is cool and moist to...
Earliest Phanerozoic or latest Proterozoic fossils from the Arabian Shield, Kingdom of Saudi Arabia
Preston Cloud, S.M. Awramik, Karen Morrison, D.G. Hadley
1979, Open-File Report 79-1186
We report here the first biologically definable fossils from pre-Saq (pre-Middle Cambrian) rocks of the Arabian Shield. They include the distinctive helically coiled tubular filaments of the oscillatorialean blue-green alga Obruchevella parva as well as two size classes of spheroidal unicells of uncertain affinity. Also present is the conical stromatolite...
Simulation of streamflow of Rock River at Lake Koshkonong, Wisconsin, to determine effects of withdrawal of powerplant-cooling water
William R. Krug
1979, Open-File Report 79-253
A flow-routing model was used to simulate 44 years of stage data from Lake Koshkonong, Wis., and streamflow data from the Rock River downstream from the lake. The simulation was repeated for five possible degrees of consumptive use, ranging from zero to an annual average of 40 cubic feet per...
Analyses of surficial deposits, central Brooks Range, Alaska
Thomas D. Hamilton, James H. Trexler, James McCalpin
1979, Open-File Report 79-228
Seventy-nine sediment samples from the central Brooks Range were analyzed for grain-size distribution, shape and composition of grains, and other physical properties. Four statistical measures (sorting, mean diameter, skewness, and kurtosis) were then computed for the sand-to-clay size fraction of all samples.Fan sediments resemble the other alluvial-gravel deposits in consisting...
Mahd Adh Dhahab: Precambrian epithermal gold deposit, Kingdom of Saudi Arabia
Robert W. Luce, James R. O’Neil, R.O. Rye
1979, Open-File Report 79-1190
The largest and most productive mine in Saudi Arabia in ancient and modern times has been Mand adh Dhahab. Country rocks in the district are pyroclastic and clastic rocks that belong to the Halaban group of late Precambrian age. From oldest to youngest, the units are: andesite, lower agglomerate, lower...
Mathematical model for simulating discharges on the Sabine River between Tatum and Ruliff, Texas
Braxtel L. Neely
1979, Open-File Report 79-566
A mathematical model for simulating discharges on the Sabine River between Tatum and Ruliff, TX., was developed to evaluate the effects of release schedules on discharges from the Toledo Bend Reservoir compared to discharges under natural conditions. Using the discharge at Tatum, TX., the rainfall over the basin, and the...
Potential hydrologic effects of peat mining in the Red Lake Peatlands, north-central Minnesota— A project plan
Donald I. Siegel
1979, Open-File Report 79-1591
Peat is being considered for fuel in Minnesota. This study will investigate the potential effects of large-scale surface mining of peat on the hydrology and water quality of Upper Red Lake and the Tamarac River. The major aspects of the study are the characterization of the surface-water and groundwater hydrology...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Sand Creek, Decatur County, Indiana
William G. Wilber, Charles G. Crawford, James G. Peters
1979, Open-File Report 79-1344
The Indiana State Board of Health is developing a State water-quality management plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in Sand Creek was used to develop alternatives for future waste loadings that would be compatible with Indiana stream water-quality...
Preconstruction and postconstruction ground-water levels, Lock and Dam 1, Red River Valley, Louisiana
A. H. Ludwig
1979, Open-File Report 79-918
Proposed construction of a series of locks and dams in the Red River in Louisiana will cause a permanent increase in average river stage. The potentiometric surface of the shallow alluvial aquifer and the water table in the fine-grained material confining the aquifer will be affected. The purpose of this...
Geology, petrology, and chemistry of the Leadville Dolomite: host for uranium at the Pitch Mine, Saguache County, Colorado
J. Thomas Nash
1979, Open-File Report 79-1566
Newly documented uranium ore in the Pitch Mine occurs chiefly in brecciated Mississippian Leadville Dolomite along the Chester reverse fault zone, and to a lesser extent in sandstone, siltstone, and carbonaceous shale of the Pennsylvanian Belden Formation and in Precambrian granitic rocks and schist. Uranium-mineralized zones are generally thicker, more...
Paleontologic and stratigraphic relations of phosphate beds in Upper Cretaceous rocks of the Cordillera Oriental, Colombia
Edwin K. Maughan, Francisco Zambrano O., Pedro Mojica G., Jacob Abozaglo M., Fernando Pachon P., Raul Duran R.
1979, Open-File Report 79-1525
Phosphorite crops out in the Cordillera Oriental of the Colombian Andes in rocks of Late Cretaceous age as strata composed mostly of pelletal carbonate fluorapatite. One stratum of Santonian age near the base of the Galembo Member of the La Luna Formation crops out at many places in the Departments...
Elevations and discharges produced by a simulated flood wave on the lower Sabine River, Louisiana and Texas, caused by a theoretical dam failure
Braxtel L. Neely, Gloria J. Stiltner
1979, Open-File Report 79-678
The Toledo Bend Reservoir is located on the lower Sabine River between Louisiana and Texas. The objective of this study was to calculate the flood wave that would result from the theoretical failure of 25 percent of Toledo Bend Dam and route the wave downstream to Orange, Tex. Computations assumed...
Probable hydrologic effects of a hypothetical failure of Mackay Dam on the Big Lost River Valley from Mackay, Idaho to the Idaho National Engineering Laboratory
Leroy Druffel, Gloria J. Stiltner, Thomas N. Keefer
1979, Water-Resources Investigations Report 79-99
Mackay Dam is an irrigation reservoir on the Big Lost River, Idaho, approximately 7.2 kilometers northwest of Mackay, Idaho. Consequences of possible rupture of the dam have long concerned the residents of the river valley. The presence of reactors and of a management complex for nuclear wastes on the reservation...
Texas Instruments Model 59 hand-calculator program to calculate theoretical MT planewave soundings over a structure of up to 10 horizontal layers
David L. Campbell
1979, Open-File Report 79-1613
No abstract available. ...
Impact of flow regulation and powerplant effluents on the flow and temperature regimes of the Chattahoochee River— Atlanta to Whitesburg, Georgia
Robert E. Faye, Harvey E. Jobson, Larry F. Land
1979, Professional Paper 1108
A calibrated and verified transient flow-temperature model was used to evaluate the effects of flow regulation and powerplant loadings on the natural temperature regime of the Chattahoochee River in northeast Georgia. Estimates were made of both instantaneous and average natural temperatures in the river during an 8-day period in August...
Hydrometeorological model for streamflow prediction
Wendell V. Tangborn
1979, Open-File Report 79-741
The hydrometeorological model described in this manual was developed to predict seasonal streamflow from water in storage in a basin using streamflow and precipitation data. The model, as described, applies specifically to the Skokomish, Nisqually, and Cowlitz Rivers, in Washington State, and more generally to streams in other regions that...
A one-dimensional, steady-state, dissolved-oxygen model and waste-load assimilation study for Clear Creek, Monroe County, Indiana
William G. Wilber, Charles G. Crawford, James G. Peters, Frank P. Girardi
1979, Open-File Report 79-1533
The Indiana State Board of Health is developing a State water-quality management plan that includes establishing limits for wastewater effluents discharged into Indiana streams. A digital model calibrated to conditions in Clear Creek was used to develop alternatives for future waste loadings that would be compatible with Indiana stream water-quality...
Flow routing in the Susquehanna River Basin, Part II: Lowflow frequency characteristics of the Susquehanna River between Waverly, New York and Sunbury, Pennsylvania
Donald L. Bingham
1979, Water-Resources Investigations Report 79-52
Six flow-routing models were developed, calibrated, and verified for the Susquehanna River between Waverly, New York, and Sunbury , Pennsylvania. The models give the Susquehanna River Basin Commission tools to estimate effects of water-resource developments upstream from Waverly upon four gaged sites and two ungaged sites within the study reach....
Availability of supplemental water supplies at salmonid fish-propagation stations in Wisconsin
C. Albert Harr, R.P. Novitzki
1979, Open-File Report 79-1170
Supplemental water supplies are available at all the 12 fish-propagation stations. At seven of the stations water may be obtained by diverting or impounding streams. Ground water is available from glacial sand-and-gravel aquifers at all the stations and from sandstone aquifers at 7 of the 12 stations. Probable well yields...
Projected effects of intermittent changes in withdrawal of water from the Arikaree Aquifer near Wheatland, southeastern Wyoming
Dwight T. Hoxie
1979, Open-File Report 80-15
Effects on streamflows and ground-water levels attributable to a proposed intermittent change in use and sites of withdrawal of 3 ,146 acre-feet of water from the Arikaree aquifer in central Platte County, WY, are assessed with a previously developed ground-water flow model. This water has been permitted for agricultural use...
Results of transient simulations of a digital model of the Arikaree Aquifer near Wheatland, southeastern Wyoming
Dwight T. Hoxie
1979, Open-File Report 79-1280
Revised ground-water pumpage data have been imposed on a ground-water flow model previously developed for the Arikaree aquifer in a 400 square-mile area in central Platte County, Wyo. Maximum permitted annual ground-water withdrawals of 750 acre-feet for industrial use were combined with three irrigation-pumping scenarios to predict the long-term effects...
Revision of the documentation for a model for calculating effects of liquid waste disposal in deep saline aquifers
Inc. INTERA Environmental Consultants
1979, Water-Resources Investigations Report 79-96
The model developed under this contract is a modified version of the deep well disposal model developed by INTERCOMP Resource Development and Engineering, Inc., for the U.S. Geological Survey (A model for calculating effects of liquid waste disposal in deep saline aquifers). The model is a finite-difference numerical solution of...
Evaluation of a digital model for estuarine water quality simulation in waste allocation studies
G.E. Seaburn, Marshall E. Jennings, Michael L. Merritt
1979, Water-Resources Investigations Report 78-54
Hydrologic and water-quality data were collected on 4 estuaries in Pasco, Citrus, and Pinellas Counties, Florida, to evaluate modeling results. Current and predicted waste loading of the four estuaries was simulated by use of a two-dimensional steady-state, intertidal-condition model. Concentrations of DO, carbonaceous and nitrogenous BOD, and chloride were simulated...
The brightness of lights on Earth at night, digitally recorded by DMSP satellite
Thomas A. Croft
1979, Open-File Report 80-167
The U.S. Air Force has operated its Defense Meteorological Satellite Program (DMSP) for nearly a decade, and film images from the system have been openly available since 1973. Films are well suited for the study of weather, and users of such films have derived much useful data. For many potential...
The sorting and deposition of allochthonous plant material in a modern environment at Silwood Lake, Silwood Park, Berkshire, England
Robert A. Spicer
1979, Open-File Report 79-1240
