Transient-pressure analysis in geothermal steam reservoirs with an immobile vaporizing liquid phase
A.F. Moench, P.G. Atkinson
1978, Geothermics (7) 253-264
A finite-difference model for the radial horizontal flow of steam through a porous medium is used to evaluate transient-pressure behavior in the presence of an immobile vaporizing or condensing liquid phase. Graphs of pressure drawdown and buildup in terms of dimensionless pressure and time are obtained for a well discharging...
The moon: Composition determined by nebular processes
J. W. Morgan, J. Hertogen, E. Anders
1978, The Moon and the Planets (18) 465-478
The bulk composition of the Moon was determined by the conditions in the solar nebula during its formation, and may be quantitatively estimated from the premise that the terrestrial planets were formed by cosmochemical processes similar to those recorded in the chondrites. The calculations are based on the Ganapathy-Anders 7-component...
Applications of the VLF induction method for studying some volcanic processes of Kilauea volcano, Hawaii
C.J. Zablocki
1978, Journal of Volcanology and Geothermal Research (3) 155-195
The very low-frequency (VLF) induction method has found exceptional utility in studying various volcanic processes of Kilauea volcano, Hawaii because: (1) significant anomalies result exclusively from ionically conductive magma or still-hot intrusions (> 800??C) and the attendant electrolytically conductive hot groundwater; (2) basalt flows forming the bulk of Kilauea have...
The crystal structure and thermal history of orthopyroxene from lunar anorthosite 15415
H. T. Evans Jr., Huebner J. Stephen, J.A. Konnert
1978, Earth and Planetary Science Letters (37) 476-484
A single crystal of untwinned orthopyroxene from lunar anorthosite sample 15415, with composition (Mg1.14Fe0.80Mn0.02Ca0.04)(Si1.97Al0.03)O6, has a unit cell in space groupPbca witha = 18.310(15)Å,b = 8.904(10)Å,c = 5.214(7)Å, containing 2 formula units. A set of 742 counter-measured intensity data made with MoKα radiation has been used to refine the crystal structure in isotropic thermal mode...
P-Wave to Rayleigh-wave conversion coefficients for wedge corners; model experiments
A.F. Gangi, R. L. Wesson
1978, Journal of Computational Physics (29) 370-388
An analytic solution is not available for the diffraction of elastic waves by wedges; however, numerical solutions of finite-difference type are available for selected wedge angles. The P- to Rayleigh-wave conversion coefficients at wedge tips have been measured on two-dimensional seismic models for stress-free wedges with wedge angles, ??0, of...
Origin of major element chemical trends in DSDP Leg 37 basalts, Mid-Atlantic Ridge
G. R. Byerly, T. L. Wright
1978, Journal of Volcanology and Geothermal Research (3) 229-279
In this paper we summarize the major element chemical variation for basalts from the Deep Sea Drilling Project Leg 37 and relate it to stratigraphic position in each of five drilling sites. Least-squares techniques are successfully used to quantify the nature and extent of alteration in these basalts, and to...
Geodimeter measurements and the Southern California uplift
W.H. Prescott, J.C. Savage
1978, Earthquake Information Bulletin (USGS) (10) 131-135
Modern surveying instruments, such as geodimeters, are capable of measuring distances in the range of 1 to 30 kilometers with remarkable precision. Indeed, the present limitation upon the precision of measurement is not the resolution of the instruments themselves but rather the uncertainty introduced by variations in the velocity of...
Earthquakes, November-December 1977
W. J. Person
1978, Earthquake Information Bulletin (USGS) (10) 97-99
Two major earthquakes occurred in the last 2 months of the year. A magnitude 7.0 earthquake struck San Juan Province, Argentina, on November 23, causing fatalities and damage. The second major earthquake was a magnitude 7.0 in the Bonin Islands region, an unpopulated area. On December 19, Iran experienced a...
Earthquake history of Wisconsin
C. A. von Hake
1978, Earthquake Information Bulletin (USGS) (10) 100-103
Only one earthquake of intensity V on the Modified Mercalli Intensity Scale (MM) or greater has occurred within Wisconsin during historic times. Some shocks originating in Illinois, Michigan, Missouri, Ohio, and Canada have been felt. ...
Empirical model of Skeletonema costatum photosynthetic rate, with applications in the San Francisco Bay estuary
James E. Cloern
1978, Advances in Water Resources (1) 267-274
An empirical model of Skeletonema costatum photosynthetic rate is developed and fit to measurements of photosynthesis selected from the literature. Because the model acknowledges existence of: 1) a light-temperature interaction (by allowing optimum irradiance to vary with temperature), 2) light inhibition, 3) temperature inhibition, and 4) a salinity effect, it accurately estimates...
Mate preference in wild and domesticated (game-farm) mallards (Anas platyrhynchos): I. Initial preference
K.M. Cheng, R.N. Shoffner, R.E. Phillips, F.B. Lee
1978, Animal Behaviour (26) 996-1003
Wild and game-farm mallards (Anas platyrhynchos) raised in pure strain and mixed groups were tested for initial mate preference in a choice test. Female mallards showed no significant preference but males of either strain raised with females of their own strain significantly preferred female models of their own strain during...
Field expectations and the determination of wildcat drilling
Emil D. Attanasi, L. J. Drew
1977, Southern Economic Journal (44) 53-67
There is currently some dissatisfaction with macroeconomic approaches to modeling the supply of domestic crude oil. One problem that has been pointed out is that the estimated supply responses of new discoveries brought about by price increases appear to be unrealistically high. Because data frequently used in these models are...
Modified Mercalli intensity scale of 1931
Henry Spall, editor(s)
1977, Earthquake Information Bulletin (USGS) (9) 30-31
[No abstract]...
Genetic differences in growth and survival of juvenile hatchery and wild steelhead trout, Salmo gairdneri
R.R. Reisenbichler, J.D. McIntyre
1977, Journal of the Fisheries Research Board of Canada (34) 123-128
Relative growth and survival of offspring from matings of hatchery and wild Deschutes River (Oregon) summer steelhead trout, Salmo gairdneri, were measured to determine if hatchery fish differ genetically from wild fish in traits that can affect the stock–recruitment relationship of wild populations. Sections of four natural streams and a...
Model for evaluating the effects of dikes on the water and salt balance of Great Salt Lake, Utah
K.M. Waddell, F.K. Fields
1977, Utah Geological and Mineralogical Survey Water-Resources Bulletin 21
A model was developed for predicting the water and salt budget for various diking options in Great Salt Lake....
Combined use of digital aquifer models and field base-flow data to identify recharge-leakage areas of artesian aquifers
Richard H. Johnston, P. Patrick Leahy
1977, Journal of Research of the U.S. Geological Survey (5) 491-496
As a result of continuous pumping since the 1890's, a regional cone of depression encompassing 363 km2 has developed within the artesian Miocene Cheswold aquifer at Dover, Del. The aquifer is not being recharged significantly by leakage near the center of the cone, nor is major recharge induced in the...
Application of linear statistical models of earthquake magnitude versus fault length in estimating maximum expectable earthquakes
Robert K. Mark
1977, Geology (5) 464-466
Correlation or linear regression estimates of earthquake magnitude from data on historical magnitude and length of surface rupture should be based upon the correct regression. For example, the regression of magnitude on the logarithm of the length of surface rupture L can be used to estimate magnitude, but the regression of log L on...
Conversion factors: SI metric and U.S. customary units
Water Resources Division, U.S. Geological Survey
1977, Report
The policy of the U.S. Geological Survey is to foster use of the International System of Units (SI) which was defined by the 11th General Conference of Weights and Measures in 1960. This modernized metric system constitutes an international "language" by means of which communications throughout the world's scientific and...
Analog-model prediction of the hydrologic effects of sanitary sewerage in southeast Nassau and southwest Suffolk Counties, New York
G.E. Kimmel, H.F.H. Ku, A.W. Harbaugh, D.J. Sulam, R.T. Getzen
1977, Long Island Water Resources Bulletin LIWR-6
State of stress in the lithosphere: Inferences from the flow laws of olivine
S. H. Kirby
1977, Pure and Applied Geophysics PAGEOPH (115) 245-258
The experimental flow data for rocks and minerals are reviewed and found to fit a law of the form {Mathematical expression} where {Mathematical expression} This law reduces to the familiar power-law stress dependency at low stress and to an exponential stress dependency at high stress. Using the material flow law...
The origin of garnet in the anorthosite-charnockite suite of the Adirondacks
J. M. McLelland, P.R. Whitney
1977, Contributions to Mineralogy and Petrology (60) 161-181
Detailed analysis of textural and chemical criteria in rocks of the anorthosite-charnockite suite of the Adirondack Highlands suggests that development of garnet in silica-saturated rocks of the suite occurs according to the reaction: {Mathematical expression}, where ?? is a function of the distribution of Fe and Mg between the several...
The stress state near Spanish Peaks, colorado determined from a dike pattern
O.H. Muller, D. D. Pollard
1977, Pure and Applied Geophysics PAGEOPH (115) 69-86
The radial pattern of syenite and syenodiorite dikes of the Spanish Peaks region is analysed using theories of elasticity and dike emplacement. The three basic components of Ode??'s model for the dike pattern (a pressurized, circular hole; a rigid, planar boundary; and uniform regional stresses) are adopted, but modified to...
Entropy, materials, and posterity
P. Cloud
1977, Geologische Rundschau (66) 678-696
Materials and energy are the interdependent feedstocks of economic systems, and thermodynamics is their moderator. It costs energy to transform the dispersed minerals of Earth's crust into ordered materials and structures. And it costs materials to collect and focus the energy to perform work - be it from solar, fossil...
Survey of trace elements in coals and coal-related materials by neutron activation analysis
R.R. Ruch, R.A. Cahill, J.K. Frost, L.R. Camp, H.J. Gluskoter
1977, Journal of Radioanalytical Chemistry (38) 415-424
Utilizing primarily instrumental neutron activation analysis (INAA) and other analytical methods as many as 61 elements were quantitatively surveyed in 170 U.S. whole coals, 70 washed coals, and 40 bench samples. Data on areal and vertical distributions in various regions were obtained along with extensive information on the mode of...
Book review: The choice of prey and modes of hunting of predatory birds with special reference to their selective effect, by G. Rudebeck
N.F.R. Snyder
1977, Bird-Banding (48) 88-89
No abstract available....
