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...
A probabilistic estimate of maximum acceleration in rock in the contiguous United States
Sylvester Theodore Algermissen, David M. Perkins
1976, Open-File Report 76-416
This paper presents a probabilistic estimate of the maximum ground acceleration to be expected from earthquakes occurring in the contiguous United States. It is based primarily upon the historic seismic record which ranges from very incomplete before 1930 to moderately complete after 1960. Geologic data, primarily distribution of faults, have...
Hydrologic interpretation of geophysical data from the southeastern Hueco Bolson, El Paso, and Hudspeth Counties, Texas
Joseph Spencer Gates, W. D. Stanley
1976, Open-File Report 76-650
Airborne-electromagnetic and earth-resistivity surveys were used to explore for fresh ground water in the Hueco Bolson southeast of El Paso, Texas. Aerial surveys were made along about 500 miles (800 km) of flight line, and 67 resistivity soundings were made along 110 miles (180 km) of profile. The surveys did...
Guide to your first use of the Image 100, a slide-cassette training module
Dale G. Gehring
1976, Open-File Report 76-613
No abstract available....
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...
Determining availability of LANDSAT imagery at the EROS Data Center: a slide-cassette training module
James A. Nickerson
1976, Open-File Report 76-21
No abstract available....
Integration of geological remote-sensing techniques in subsurface analysis
James V. Taranik, Charles M. Trautwein
1976, Open-File Report 76-402
Geological remote sensing is defined as the study of the Earth utilizing electromagnetic radiation which is either reflected or emitted from its surface in wavelengths ranging from 0.3 micrometre to 3 metres. The natural surface of the Earth is composed of a diversified combination of surface cover types, and geologists...
An appraisal of ground water for irrigation in the Appleton area, west-central Minnesota
Steven P. Larson
1976, Water Supply Paper 2039-B
Supplemental irrigation of well-drained sandy soils has prompted an evaluation of ground water in the Appleton area. Glacial drift aquifers are the largest source of ground water. The surficial outwash sand and gravel is the most readily available and the most areally extensive drift aquifer, and it underlies much of...
Geologic interpretation of an aeromagnetic map of the west-central Columbia Plateau, Washington and Oregon
Donald A. Swanson, Thomas L. Wright, Isidore Zietz
1976, Open-File Report 76-51
A low altitude, total intensity aeromagnetic map of the ?west-central Columbia Plateau, underlain principally by the Yakima Basalt,. shows Positive and negative anomalies that stand out from a moderate intensity .background reflecting .interbedded flows of normal and reversed magnetic polarity. One set of anomalies is related to anticlinal ridges, nother...
Data for calibrating unsteady-flow sediment-transport models, East Fork River, Wyoming, 1975
Holly A. Mahoney, Edmund D. Andrews, William W. Emmett, Luna Bergere Leopold, Robert H. Meade, Robert M. Myrick, Carl F. Nordin
1976, Open-File Report 76-22
In 1975, data to calibrate a one-dimensional unsteady-flow and sediment-transport routing model were collected on a reach of the East Fork River of western Wyoming. The reach, 3.1 miles (5 kilometers) in length, wan immediately upstream from a previously established bedload sampling station. Nineteen channel cross sections were sounded at...
Preliminary investigations on computational methods for solving the two-point seismic ray-tracing problem in a heterogeneous and isotropic medium
J.P. Yang, William Hung Kan Lee
1976, Open-File Report 76-707
Two-point seismic ray tracing is an important problem in seismology. In this report, we study this problem by first deriving the differential equations governing seismic wave propagation between two end points in a 3-dimensional heterogeneous and isotropic medium. We then formulate three numerical schemes to solve the two-point ray-tracing problem....
Documentation of programs that compute 1) quasi-static tilts produced by an expanding dislocation loop in an elastic and viscoelastic material, and 2) surface shear stresses, strains, and shear displacements produced by screw dislocations in a vertical slab with modulus contrast
Stuart McHugh
1976, Open-File Report 76-484
The material in this report can be grouped into two categories: 1) programs that compute tilts produced by a vertically oriented expanding rectangular dislocation loop in an elastic or viscoelastic material and 2) programs that compute the shear stresses, strains, and shear displacements in a three-phase half-space (i.e. a half-space...
Simulation procedure for modeling transient water table and artesian stress and response
J.E. Reed, M. S. Bedinger, J. E. Terry
1976, Open-File Report 76-792
The series of computer programs described in this report were designed specifically to model the ground-water regime in sufficient detail to determine the effects of the imposition of various types of stress upon the system, and to display the results in a convenient manner during calibration and when presenting projected...
Lakes Marion-Moultrie stream system investigation, South Carolina : Part II-Simulation Studies
H.H. Jeffcoat, M.E. Jennings, D.L. Collins, J.O. Shearman
1976, Water-Resources Investigations Report 76-11
A stream-reservoir model was developed to simulate the operation of the Lakes Marion-Moultrie, South Carolina, reservoir system. The reservoir system is operated under the assumption of a 3-day prior knowledge of inflows. This information is attainable from the ooperational reservoir-inflow forecasting model developed in the Part I report. The model,...
Combined use of digital aquifer models and field base-flow data to identify recharge leakage areas of artesian aquifers
R.H. Johnston, P.P. Leahy
1976, Open-File Report 76-795
Analog-model analysis of effects of wastewater management on the groundwater reservoir in Nassau and Suffolk Counties, New York; Report II: Recharge with wastewater
Arlen W. Harbaugh, Thomas E. Reilly
1976, Open-File Report 76-847
No abstract available....
Preseismic and coseismic deformation associated with the Hollister, California, earthquake of November 28, 1974
James C. Savage, Mary Ann Spieth, W.H. Prescott
1976, Journal of Geophysical Research (81) 3567-3574
The epicenter of the Hollister earthquake (ML = 5.1) of November 28, 1974, is located near the center of an 81‐line trilateration network which has been surveyed annually since 1971. Five lines in the neighborhood of the epicenter were surveyed just 2 days before the earthquake, and two other lines nearby...
Strain accumulation on the San Andreas Fault near Palmdale, California
W.H. Prescott, James C. Savage
1976, Journal of Geophysical Research B: Solid Earth (81) 4901-4908
Precise distance measurements of a 10×25 km 15‐station trilateration network that spans the San Andreas fault west of Palmdale, California, have been repeated annually in the period 1971–1975. The network appears to be deforming under simple uniform tensor shear of about 0.21±0.03 μstrain/yr with the direction of maximum right‐lateral shear...
Numerical models of wind-driven circulation in lakes
Ralph T. Cheng, Thomas M. Powell, T. M. Dillon
1976, Applied Mathematical Modelling (1) 141-159
The state-of-the-art of numerical modelling of large-scale wind-driven circulation in lakes is presented. The governing equations which describe this motion are discussed along with the appropriate numerical techniques necessary to solve them in lakes. The numerical models are categorized into three large primary groups: the layered models, the Ekman-type models,...
Episodic strain accumulation in Southern California
W. Thatcher
1976, Science (194) 691-695
Reexamination of horizontal geodetic data in the region of recently discovered aseismic uplift has demonstrated that equally unusual horizontal crustal deformation accompanied the development of the uplift. During this time interval compressive strains were oriented roughly normal to the San Andreas fault, suggesting that the uplift produced little shear strain...
Metagraywacke in the Salinian Block, central Coast Ranges, California: And a possible correlative across the San Andreas Fault
Donald C. Ross
1976, Journal of Research of the U.S. Geological Survey (4) 683-696
The schist of Sierra de Salinas is a monotonously homogeneous biotite quartzofeldspathic schist with minor amounts of quartzite, amphibolite, and marble that forms a northwest-trending outcrop belt that strikes across parts of the Santa Lucia and Gabilan Ranges and is traceable further south in the subsurface to where it is...
Gravity studies in the Carolina slate belt near the Haile and Brewer mines, north-central South Carolina
Henry Bell III, Peter Popenoe
1976, Journal of Research of the U.S. Geological Survey (4) 667-682
The Bouguer gravity map of part of the Carolina slate belt near the Haile and Brewer mines in South Carolina shows anomalies related to rock units. The most conspicuous of the anomalies coincide with coarse-grained granitic plutons. Mathematically calculated models using an iterative three-dimensional solution of the gravity anomalies show...
Geothermal flux through palagonitized tephra, Surtsey, Iceland: The Surtsey temperature-data-relay experiment via Landsat-1
Jules D. Friedman, Duane M. Preble, Sveinn P. Jakobsson
1976, Journal of Research of the U.S. Geological Survey (4) 645-659
The net geothermal flux through palagonitized basaltic tephra rims of the Surtur I and Surtur II craters at Surtsey, Iceland, in 1972, is estimated at 780 ±325 μcal cm-2s-1, indicating a decline since 1969 when a flux of 1,500 μcal cm-2s-1 was estimated. Heat flux in this range characterizes the...
Sedimentary depositional environments of uranium and petroleum host rocks of the Jackson Group, south Texas
Kendell A. Dickinson
1976, Journal of Research of the U.S. Geological Survey (4) 615-629
Determination of depositional environments in rocks of the Jackson Group of late Eocene age aids in the exploration for uranium and petroleum in south Texas. During deposition of the Jackson Group, conditions were similar to those existing along the modern Gulf Coast of Texas except for a less arid climate...
Pre-Eocene rocks of Java, Indonesia
Keith B. Ketner, Kastowo, Subroto Modjo, C. W. Naeser, J. D. Obradovich, Keith Robinson, Tatan Suptandar, Wikarno
1976, Journal of Research of the U.S. Geological Survey (4) 605-614
The exposed pre-Eocene rocks of Java can be divided into two compound units for purposes of reconnaissance mapping and structural interpretation: a sedimentary sequence and melange. The sedimentary sequence consists of moderately deformed and little-metamorphosed conglomerate, sandstone, mudstone, claystone, chert, and limestone. The melange consists of a chaotic mechanical mixture...
