Aquifer coefficients determined from multiple well effects, Fernandina Beach, Florida
C.B. Bentley
1979, Groundwater (17) 525-531
On September 30, 1977, a large industrial plant in Fernandina Beach, Florida, shut down six artesian wells that had been pumping continuously for several weeks from the Floridan aquifer. Two wells continued pumping until November 20, 1977, at which time the shutdown wells were restarted....
A review of numerical simulation of hydrothermal systems
J.W. Mercer, C.R. Faust
1979, Hydrological Sciences Bulletin (24) 335-344
Many advances in simulating single and two-phase fluid flow and heat transport in porous media have recently been made in conjunction with geothermal energy research. These numerical models reproduce system thermal and pressure behaviour and can be used for heat-transport problems other than those associated with geothermal energy development, such...
Rare earth abundances and Rb-Sr systematics of basalts, gabbro, anorthosite and minor granitic rocks from the Indian Ocean Ridge System, Western Indian Ocean
C. E. Hedge, K. Futa, C.G. Engel, R.L. Fisher
1979, Contributions to Mineralogy and Petrology (68) 373-376
Basalts dredged from the Mid-Indian Ocean Ridge System have rare earth, Rb, and Sr concentrations like those from other mid-ocean ridges, but have slightly higher Sr87/Sr86 ratios. Underlying gabbroic complexes are similar to the basalts in Sr87/Sr86, but are poorer K, Rb, and in rare earths. The chemical and isotopic...
Improved signal discrimination in tectonomagnetism: Discovery of a volcanomagnetic effect at Kilauea, Hawaii
P.M. Davis, F.D. Stacey, C.J. Zablocki, J.V. Olson
1979, Physics of the Earth and Planetary Interiors (19) 331-336
Cancellation of extraterrestrial magnetic disturbances by taking simple differences between total field readings at spaced stations is imperfect. It is shown that improvement is possible when three component observatory data are available from a single station in the general, but not necessarily immediate, vicinity of an array of total field...
International cooperation in water resources
J.R. Jones, R.M. Beall, E.V. Giusti
1979, GeoJournal (3) 481-487
Advancements in hydrology proceeded slowly until the late 1800's when new ventures created a surge of interest and accomplishment. Progress waned again until the middle 20th century when an International Hydrological Decade was conceived, eventually receiving wide multinational support from governmental agencies and nongovernmental institutions. Organized by UNESCO, the Decade...
Probability weighted moments: Definition and relation to parameters of several distributions expressable in inverse form
J. Arthur Greenwood, J. Maciunas Landwehr, N.C. Matalas, J.R. Wallis
1979, Water Resources Research (15) 1049-1054
Distributions whose inverse forms are explicitly defined, such as Tukey's lambda, may present problems in deriving their parameters by more conventional means. Probability weighted moments are introduced and shown to be potentially useful in expressing the parameters of these distributions....
Diagenetic changes in the elemental composition of unrecrystallized mollusk shells
P.C. Ragland, O. H. Pilkey, B. W. Blackwelder
1979, Chemical Geology (25) 123-134
The Mg, Sr, Mn, Fe, Na and K contents were determined for 230 apparently unrecrystallized mollusk shells (gastropods and bivalves) ranging in age from late Cretaceous to Holocene. Consistent differences between the Holocene and fossil shells with respect to concentrations of all these elements are attributed to postburial diagenetic changes....
Recent crustal movements in the Sierra Nevada-Walker lane region of California-Nevada: Part i, rate and style of deformation
D.B. Slemmons, D.V. Wormer, E.J. Bell, M.L. Silberman
1979, Tectonophysics (52) 561-570
This review of geological, seismological, geochronological and paleobotanical data is made to compare historic and geologic rates and styles of deformation of the Sierra Nevada and western Basin and Range Provinces. The main uplift of this region began about 17 m.y. ago, with slow uplift of the central Sierra Nevada...
Massive deep-sea sulphide ore deposits discovered on the East Pacific Rise
Jean Francheteau, H.D. Needham, P. Choukroune, Tierre Juteau, M. Seguret, Richard D. Ballard, P.J. Fox, William Normark, A. Carranza, D. Cordoba, J. Guerrero, C. Rangin, H. Bougault, P. Cambon, R. Hekinian
1979, Nature (277) 523-528
Massive ore-grade zinc, copper and iron sulphide deposits have been found at the axis of the East Pacific Rise. Although their presence on the deep ocean-floor had been predicted there was no supporting observational evidence. The East Pacific Rise deposits represent a modern analogue of Cyprus-type sulphide ores associated with...
Geochemical surveys in the United States in relation to health.
H. A. Tourtelot
1979, Philosophical Transactions of the Royal Society B: Biological Sciences (288) 113-125
Geochemical surveys in relation to health may be classified as having one, two or three dimensions. One-dimensional surveys examine relations between concentrations of elements such as Pb in soils and other media and burdens of the same elements in humans, at a given time. The spatial distributions of element concentrations...
Plaque-forming cells and humoral antibody in rainbow trout (Salmo gairdneri) induced by immersion in a Yersinia ruckeri O-antigen preparation
D. P. Anderson, B.S. Roberson, O. W. Dixon
1979, Journal of the Fisheries Research Board of Canada (36) 636-639
Rainbow trout (Salmo gairdneri) were exposed to the O-antigen of Yersinia ruckeri by various immunization regimens. The passive hemolytic plaque assay was used to show specific splenic plaque-forming cells (PFC) and passive hemagglutination demonstrated humoral antibody titers in fish injected with or immersed in the antigen preparations. Preceding antigen immersion with a...
Lunar magnetic anomalies detected by the Apollo substatellite magnetometers
L. L. Hood, P.J. Coleman Jr., C.T. Russell, D.E. Wilhelms
1979, Physics of the Earth and Planetary Interiors (20) 291-311
Properties of lunar crustal magnetization thus far deduced from Apollo subsatellite magnetometer data are reviewed using two of the most accurate presently available magnetic anomaly maps - one covering a portion of the lunar near side and the other a part of the far side. The largest single anomaly found...
Geochemical and hydrologic considerations and the use of enthalpy-chloride diagrams in the prediction of underground conditions in hot-spring systems
R.O. Fournier
1979, Journal of Volcanology and Geothermal Research (5) 1-16
Thermal water ascending in a hot-spring system may cool by conduction of heat to the surrounding rock, by boiling, by mixing with cooler water, or by a combination of these processes. Complete or partial chemical reequilibration may occur as a result of this cooling. In spite of these complexities, in...
The genus Platychara from the Western Hemisphere
R.E. Peck, R. M. Forester
1979, Review of Palaeobotany and Palynology (28) 223-236
The systematics of four species belonging to the genus Platychara (Charophyta) from the Western Hemisphere is discussed. Three of the species, as defined herein, occur in Cretaceous and Paleocene rocks from Mexico through South America. The type species, P. compressa (Peck and Reker) Grambast, also of Cretaceous and Paleocene age,...
An algol program for dissimilarity analysis: a divisive-omnithetic clustering technique
J.C. Tipper
1979, Computers & Geosciences (5) 1-13
Clustering techniques are used properly to generate hypotheses about patterns in data. Of the hierarchical techniques, those which are divisive and omnithetic possess many theoretically optimal properties. One such method, dissimilarity analysis, is implemented here in ALGOL 60, and determined to be competitive computationally with most other methods. ?? 1979....
Photogrammetric portrayal of Mars topography
Sherman S.C. Wu
1979, Journal of Geophysical Research Solid Earth (84) 7955-7960
Special photogrammetric techniques have been developed to portray Mars topography, using Mariner and Viking imaging and nonimaging topographic information and earth-based radar data. Topography is represented by the compilation of maps at three scales: global, intermediate, and very large scale. The global map is a synthesis of topographic information obtained...
Surface faults in the gulf coastal plain between Victoria and Beaumont, Texas
Earl R. Verbeek
1979, Tectonophysics (52) 373-375
Displacement of the land surface by faulting is widespread in the Houston-Galveston region, an area which has undergone moderate to severe land subsidence associated with fluid withdrawal (principally water, and to a lesser extent, oil and gas). A causative link between subsidence and fluid extraction has been convincingly reported in...
Laboratory experiments and preseismic slip
James H. Dieterich
1979, Earthquake Information Bulletin (USGS) (11) 224-227
Changes in the seismicity of central California
J. P. Eaton
1979, Earthquake Information Bulletin (USGS) (11) 205-208
The history of seismometry to 1900
J. Dewey, P. Byerly
1979, Earthquake Information Bulletin (USGS) (11) 64-70
The Southern California cooperative seismic network
G. Fuis, C. Allen
1979, Earthquake Information Bulletin (USGS) (11) 196-204
Tsunami alerting systems
H.E. Clark Jr.
1979, Earthquake Information Bulletin (USGS) (11) 132-137
National Information Service for earthquake engineering
R.C. Denton, A. Donovan, K.K. Wong
1979, Earthquake Information Bulletin (USGS) (11) 141-142
New Zealand and Antarctic seismology
G. Eiby
1979, Earthquake Information Bulletin (USGS) (11) 170-174
The earthquakes near Cadoux, Western Australia, June, 1979
H.A. Doyle
1979, Earthquake Information Bulletin (USGS) (11) 180-182
