CABFAC/USGS, a FORTRAN program for Q-mode factor analysis of stratigraphically ordered samples
David P. Adams
1976, Open-File Report 76-216
This program is a revision of the CABFAC program of Kovan and Imbrie (1971) which incorporates the following improvements: each factor is plotted against depth on the printer; samples are ordered stratigraphically by the program, so that input data need not be ordered stratigraphically; an option has been added to...
A cross-section plotting program (CSPP) for gridded (map) data
Richard B. Wells, Charles R. Faust, James W. Mercer
1976, Open-File Report 76-689
A FORTRAN program that prepares the Calcomp plotter tape for drawing cross-sections from gridded map data is described and documented. The program accepts gridded data of the form Z(x,y), where Z is the value at the grid intersection, (x,y). Up to 10 sets of Z(x,y) data for a given grid...
Geotechnical description of four Mississippi Delta soil borings
James S. Booth
1976, Open-File Report 76-308
A water-quality assessment of the Hall-Flat Creek Watershed, Dubois County, Indiana
M. A. Ayers
1976, Open-File Report 76-94
Puerto Rice seismic program seismological data report, August 16, 1974-June 30, 1975
David L. Carver, Lana M. Turner, Arthur C. Tarr
1976, Open-File Report 76-369
Relations between specific gravity and chemical composition for a suite of igneous and metamorphic rocks
Edward J. Young, G.R. Olhoeft
1976, Open-File Report 76-809
Principal facts for a gravity survey of Wendel-Amedee Known Geothermal Resource Area, California
Donald L. Peterson, Jerry H. Hassemer
1976, Open-File Report 76-702-B
Leveling data from the epicentral area of the March 27, 1975, earthquake in Pocatello Valley, Idaho
Robert C. Bucknam
1976, Open-File Report 76-52
Preliminary evaluation of the feasibility of artificial recharge in northern Qater
John Vecchioli
1976, Open-File Report 76-540
Fresh ground water in northern Qatar occurs as a lens in limestone and dolomite of Eocene age. Natural recharge from precipitation averages 17x106 cubic metres per year whereas current discharge averages 26.6x106 cubic metres per year. Depletion of storage is accompanied by a deterioration in quality due to encroachment of...
Computer program designed to aid in the analysis of linear features derived from Landsat data
William Clinton Steele
1976, Open-File Report 76-605
Preliminary report on stratigraphy and depositional environments of the lignites in the Fort Union Formation, west-central North Dakota
Edward A. Rehbein
1976, Open-File Report 77-69
Stratigraphy and petroleum possibilities of lower Upper Devonian (Frasnian and lower Famennian) strata, Southwestern Utah
Edward J. Biller
1976, Open-File Report 76-343
The lower Upper Devonian rocks in southwestern Utah--the Guilmette Formation and equivalents--represent a final regressive pulse of the major Late Devonian marine inundation of the Western Interior of the United States and record marine carbonate deposition on a wide continental shelf. They consist primarily of limestone, dolomite, and quartz arenite...
Documentation of finite-difference model for simulation of three-dimensional ground-water flow
Peter C. Trescott, S. P. Larson
1976, Open-File Report 76-591
User experience has indicated that the documentation of the model of three-dimensional ground-water flow (Trescott and Larson, 1975) should be expanded. This supplement is intended to fulfill that need. The original report emphasized the theory of the strongly implicit procedure, instructions for using the groundwater-flow model, and practical considerations for...
Principal facts for a gravity survey of Summer Lake KGRA, Oregon
Donald L. Peterson, R. F. Meyer
1976, Open-File Report 76-702-A
Potential effects of geothermal development on springs at the Hot Creek Fish Hatchery in Long Valley, Mono County, California
M.L. Sorey
1976, Open-File Report 75-637
Statistical analysis of water-level, springflow, and streamflow data for the Edwards Aquifer in south-central Texas
Celso Puente
1976, Open-File Report 76-393
Water-level, springflow, and streamflow data were used to develop simple and multiple linear-regression equations for use in estimating water levels in wells and the flow of three major springs in the Edwards aquifer in the eastern San Antonio area. The equations provide daily, monthly, and annual estimates that compare very...
Schlumberger soundings in the Durham-Wadesboro Triassic basin, North Carolina
Robert J. Bisdorf, Hans D. Ackermann
1976, Open-File Report 76-251
Oxalic-acid leaching of rock, soil, and stream-sediment samples as an anomaly-accentuated technique
Henry V. Alminas, Elwin L. Mosier
1976, Open-File Report 76-275
In many instances total-rock and sieved-soil and stream-sediment samples lack the sensitivity and contrast required for reconnaissance exploration and necessary in the search for blind ore deposits. Heavy-mineral concentrates incorporate the required sensitivity and contrast but are overly expensive for two reasons: time-consuming sample preparation is required to obtain them,...
Newly discovered Upper Triassic and Lower Cretaceous strata in the northern Kuskokwim Mountains
William Wallace Patton Jr.
1976, Open-File Report 76-168
Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Chandalar and Wiseman quadrangles, Alaska
Edward Huntington Cobb
1976, Open-File Report 76-340
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Chandalar and Wiseman quadrangles in the southern Brooks Range, Alaska. All references to reports of the Geological Survey, to most reports of the U.S....
Some geochemical parameters effecting the in-situ leaching of uranium
Robert W. Potter
1976, Open-File Report 76-835
Digital telemetry system network installation for the National Earthquake Information Service
Harold E. Clark
1976, Open-File Report 76-328
Audio-magnetotelluric station location map, Breitenbush Known Geothermal Resource Area, Oregon
R. Michael Senterfit, Carl L. Long
1976, Open-File Report 76-700-F
Porphyry-type metallization and alteration at La Florida de Nacozari, Sonora, Mexico
Ted G. Theodore, Miguel Priego de Wit
1976, Open-File Report 76-760
Flood frequency: expected and unexpected probabilities
D. M. Thomas
1976, Open-File Report 76-775
Flood-frequency curves may be defined either with or without an ' expeced probability ' adustment; and the two curves differ in the way that they attempt to average the time-sampling uncertainties. A curve with no adustment is shown to estimate a median value of both discharge and frequency of occurrence,...
