Map of land modified by man in part of the Murrysville 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania
W.E. Davies
1974, Open-File Report 74-294
Map of land modified by man in the Emsworth 7 1/2-minute Quadrangle, Allegheny County, Pennsylvania
J. S. Pomeroy
1974, Open-File Report 74-73
Map of land modified by man in the Braddock 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania
W.E. Davies
1974, Open-File Report 74-285
Map of land modified by man in part of the Mars 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania
J. S. Pomeroy
1974, Open-File Report 74-115
Water quality modeling for waste-load allocation studies in Arkansas : stream dissolved oxygen and conservative minerals
Marshall E. Jennings, Charles T. Bryant
1974, Open-File Report 74-1055
Economic geology of the Isla de Mona Quadrangle, Puerto Rico
Reginald Peter Briggs
1974, Open-File Report 74-226
Limiting this tableland In the northern part of Isla de Mona are sheer sea cliffs chiefly exposing the Isla de Mona Dolomite. Around the southern part of the island are Irregular cliffs and steep slopes that chiefly expose the Lirio Limestone. The structure of Isla de Mona consists of two...
Summary of tectonic and structural evidence for stress orientation at the Nevada Test Site
Wilfred James Carr
1974, Open-File Report 74-176
A tectonic synthesis of the NTS (Nevada Test Site) region, when combined with seismic data and a few stress and strain measurements, suggests a tentative model for stress orientation. This model proposes that the NTS is undergoing extension in a N. 50 ? W.-S. 50 ? E. direction coincident with...
Lakes Marion-Moultrie stream system investigation: Part I- Model selection, calibration, and error analysis
Hillary H. Jeffcoat, Marshall E. Jennings, Johannes B. Peterson
1974, Water-Resources Investigations Report 74-25
No abstract available. ...
Grid-coordinate generation program
Oliver J. Cosner, Esther Horwich
1974, Open-File Report 74-1018
This program description of the grid-coordinate generation program is written for computer users who are familiar with digital aquifer models. The program computes the coordinates for a variable grid -used in the 'Pinder Model' (a finite-difference aquifer simulator), for input to the CalComp GPCP (general purpose contouring program). The program...
Reconnaissance study of the geothermal resources of Modoc County, California
Wendell A. Duffield, Robert O. Fournier
1974, Open-File Report 74-1024
No abstract available....
Users guide for a U.S. Geological Survey rainfall-runoff model and associated files
Charles W. Boning
1974, Open-File Report 74-33
Erosion and sediment yields in mountain watersheds of the Transverse Ranges Ventura and Los Angeles Counties, California; analysis of rates and processes
Kevin M. Scott, Rhea P. Williams
1974, Water-Resources Investigations Report 73-47
Major-storm and long-term erosion rates in mountain watersheds of the western Transverse Ranges of Ventura County are estimated to range from low values that will not require the construction of catchments or channel-stabilization structures to values as high as those recorded anywhere for comparable bedrock erodibilities.A major reason for this...
Estimating low-flow frequency for perennial Missouri Ozarks streams
John Skelton
1974, Water-Resources Investigations Report 73-59
A linear regression model, utilizing an independent variable described as the flow area of a stream, has been developed for use in estimating minimum streamflow at ungaged sites in the Ozarks region of Missouri. The basic premise in the method is that low-flow characteristics at any point on perennial Ozarks...
An investigation of basin effects on flood discharges in North Dakota
Orlo A. Crosby
1974, Open-File Report 74-346
An investigation of the relationship of peak discharge to causative storm variables and drainage-basin characteristics was made to provide guidelines for future analyses of frequency and magnitudes of floods from small drainage areas. The procedure used was (l) to estimate peak discharges on the ll study basins from multiple-regression models developed from the storm variables and...
Gold in the Black Hills, South Dakota, and how new deposits might be found
James Jennings Norton
1974, Circular 699
Of the recorded production of 34,694,552 troy ounces of gold mined in South Dakota through 1971, about 90 percent has come from Precambrian ore bodies in the Homestake mine at Lead in the northern Black Hills. Most of the rest has come from ore deposited in the Deadwood Formation (Cambrian)...
Seawater intrusion, ground-water pumpage, ground-water yield, and artificial recharge of the Pajaro Valley area, Santa Cruz and Monterey Counties, California
K. S. Muir
1974, Water-Resources Investigations Report 74-9
The Pajaro Valley area, California, covering about 120 square miles (310 km2), extends from the southern part of Santa Cruz County to several miles south of the county line into Monterey County. It borders the Pacific Ocean on the west and the Santa Cruz Mountains on the east. The city...
Hydrology of the Dismal Swamp, Virginia-North Carolina
William Francis Lichtler, Patrick Neil Walker
1974, Open-File Report 74-39
The Dismal Swamp, on the border between eastern Virginia and North Carolina is one of the few remaining large (approximately 210,000 acres) areas of wet wilderness in the eastern United States. There has been much speculation concerning the hydrologic conditions that led to the formation of the swamp.Oaks and Coch...
Posssible extension of mineral belts, northern part of Coeur d'Alene district, Idaho
Garland Bayard Gott, Joseph Moses Botbol
1974, Open-File Report 74-67
The ore deposits in the northern part of the Coeur d'Alene district are located within rocks of the Belt Supergroup that have been intruded by Cretaceous quartz monzonites. Lead-zinc-silver replacement veins constitute most of the deposits. The geometry of the district has been modified by post-ore faulting along the Osburn,...
Reconnaissance engineering geology of Sitka and vicinity, Alaska, with emphasis on evaluation of earthquake and other geologic hazards
Lynn A. Yehle
1974, Open-File Report 74-53
A program to study the engineering geology of most of the larger Alaska coastal communities and to evaluate their earthquake and other geologic hazards was started following the 1964 Alaska earthquake; this report about Sitka and vicinity is a product of that program. Field-study methods were of a reconnaissance nature,...
Storage of low-level radioactive wastes in the ground; hydrogeologic and hydrochemical factors
Stavros Stefanu Papadopulos, Isaac Judah Winograd
1974, Open-File Report 74-344
The status of mathematical simulation techniques, as they apply to radioactive waste burial sites, is briefly reviewed, and hydrogeologic and hydrochemical data needs are listed in order of increasing difficulty and cost of acquisition. Predictive modeling, monitoring, and management of radionuclides dissolved and transported by ground water can best be...
Landslide susceptibility and land modified by man map of part of the Aliquippa 7-1/2' Quadrangle, Allegheny County and vicinity, Pennsylvania
John S. Pomeroy
1974, Open-File Report 74-120
Map of land modified by man in part of the Donora 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania
W.E. Davies
1974, Open-File Report 74-289
Estimation of petroleum exploration success and the effects of resource base exhaustion via a simulation model
Lawrence J. Drew
1974, Bulletin 1328
Map of land modified by man in part of the Bridgeville 7 1/2-minute Quadrangle, Allegheny County and vicinity, Pennsylvania
W.E. Davies
1974, Open-File Report 74-286
Modal analyses of selected samples from the New Hartford Quadrangle, Connecticut
Robert W. Schnabel
1974, Open-File Report 74-1091
No abstract available. ...