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Page 5918, results 147926 - 147950

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Earthquakes: August-September 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 32-33
Destructive earthquakes continued to strike in many parts of the world during this period. The sparsely populated area of the New Hebrides Islands in the southwest Pacific was struck by a major earthquake (one with a magnitude between 7.0 and 7.9). A great earthquake (magnitude 8.0 or above) struck just...
A selected bibliography: Application of Landsat digital multispectral scanner data to agriculture, forestry, and range management
Wayne G. Rohde
1977, Report
This bibliography contains citations of selected publications and technical reports dealing with the application of Landsat digital data analysis techniques to agriculture, forestry, and range management problems. All of the citations were published between 1973 and 1977. The citations reference publications and reports which discuss specific analysis techniques and specific...
When an earthquake occurs....
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 17-19
When an earthquake occurs, we must be ready at the National Earthquake Information Service (NEIS) in Golden, Colo., to provide information as to its magnitude and epicenter as quickly as possible.This information is given to agencies concerned with disaster relief and to the press. A typical scenario for our operations...
Earthquakes in the United States
C. Stover
1977, Earthquake Information Bulletin (USGS) (9) 32-33
To supplement data in the report Preliminary Determination of Epicenters (PDE), the National earthquake Information Service (NEIS) also publishes a quarterly circular, Earthquakes in the United States. This provides information on the felt area of U.S earthquakes and their intensity. The main purpose is to describe the larger effects of these earthquakes so that...
Earthquakes, December 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 28-29
The month of December was seismically quiet compared to the previous months of the year. There were no major earthquakes during the month and only one that caused fatalities. On December 8, the Republic of South Africa was struck by an earthquake that caused deaths and damage. The United States...
Water analysis
M. J. Fishman, D. E. Erdmann
1977, Analytical Chemistry (49) 139-158
No abstract available....
Sets of spectral lines for spectrographic thermometry and manometry in d.c. arcs of geologic materials
D. W. Golightly, A. F. Dorrzapf Jr., C. P. Thomas
1977, Spectrochimica Acta Part B: Atomic Spectroscopy (32) 313-325
Sets of 5 Fe(I) lines and 3 Ti(I) Ti(II) line pairs have been characterized for precise spectrographic thermometry and manometry, respectively, in d.c. arcs of geologic materials. The recommended lines are free of spectral interferences, exhibit minimal self absorption within defined concentration intervals, and are useful for chemically-unaltered silicate rocks,...
Estimation of the probability of success in petroleum exploration
J.C. Davis
1977, Journal of the International Association for Mathematical Geology (9) 409-427
A probabilistic model for oil exploration can be developed by assessing the conditional relationship between perceived geologic variables and the subsequent discovery of petroleum. Such a model includes two probabilistic components, the first reflecting the association between a geologic condition (structural closure, for example) and the occurrence of oil, and...
Relation between earthquakes, weather, and soil tilt
M.D. Wood, N.E. King
1977, Science (197) 154-156
Two years of local earthquake, temperature, and rainfall data taken near a tiltmeter site were used in a study of the numerical relation between these phenomena and the recorded tilt response. A least-squares shaping and predictive error filter approach was used. The relations were ranked in part according to the...
Importance of neutron energy distribution in borehole activation analysis in relatively dry, low-porosity rocks
F. E. Senftle, R.M. Moxham, A.B. Tanner, P. W. Philbin, G. R. Boynton, R.E. Wager
1977, Geoexploration (15) 121-135
To evaluate the importance of variations in the neutron energy distribution in borehole activation analysis, capture gamma-ray measurements were made in relatively dry, low-porosity gabbro of the Duluth Complex. Although sections of over a meter of solid rock were encountered in the borehole, there was significant fracturing with interstitial water...
Combined position and diameter measures for lunar craters
D.W.G. Arthur
1977, Icarus (32) 127-129
The note addresses the problem of simultaneously measuring positions and diameters of circular impact craters on wide-angle photographs of approximately spherical planets such as the Moon and Mercury. The method allows for situations in which the camera is not aligned on the planet's center....
Graphic analysis of resources by numerical evaluation techniques (Garnet)
A.C. Olson
1977, Computers & Geosciences (3) 539-545
An interactive computer program for graphical analysis has been developed by the U.S. Geological Survey. The program embodies five goals, (1) economical use of computer resources, (2) simplicity for user applications, (3) interactive on-line use, (4) minimal core requirements, and (5) portability. It is designed to aid (1) the rapid...
An exploratory drilling exhaustion sequence plot program
J.H. Schuenemeyer, L.J. Drew
1977, Computers & Geosciences (3) 617-631
The exhaustion sequence plot program computes the conditional area of influence for wells in a specified rectangular region with respect to a fixed-size deposit. The deposit is represented by an ellipse whose size is chosen by the user. The area of influence may be displayed on computer printer plots consisting...