Galerkin finite-element simulation of a geothermal reservoir
J.W. Mercer Jr., G.F. Pinder
1973, Geothermics (2) 81-89
The equations describing fluid flow and energy transport in a porous medium can be used to formulate a mathematical model capable of simulating the transient response of a hot-water geothermal reservoir. The resulting equations can be solved accurately and efficiently using a numerical...
Production of superheated steam from vapor-dominated geothermal reservoirs
A.H. Truesdell, D. E. White
1973, Geothermics (2) 154-173
Vapor-dominated geothermal systems such as Larderello, Italy, The Geysers, California, and Matsukawa, Japan yield dry or superheated steam when exploited. Models for these systems are examined along with production data and the thermodynamic properties of water, steam and rock. It is concluded that...
Radial particle-size segregation during packing of particulates into cylindrical containers
C.D. Ripple, R.V. James, J. Rubin
1973, Powder Technology (8) 165-175
In a series of experiments, soil materials were placed in long cylindrical containers, using various packing procedures. Soil columns produced by deposition and simultaneous vibratory compaction were dense and axially uniform, but showed significant radial segregation of particle sizes. Similar results were obtained with deposition and simultaneous impact-type compaction when...
Isotopic composition of oil-field brines from Kettleman North Dome, California, and their geologic implications
Y.K. Kharaka, F.A.F. Berry, I. Friedman
1973, Geochimica et Cosmochimica Acta (37) 1899-1908
Deuterium and O18 analyses were made on 25 formation-water samples from Miocene (Temblor Formation) and Eocene (McAdams Formation) reservoir rocks at Kettleman North Dome oil field, California, and on three surface water samples from Reef Ridge located about three miles to the west of the field. The δO18 values obtained generally increase with...
U-Th-Pb measurements of Luna 20 soil
M. Tatsumoto
1973, Geochimica et Cosmochimica Acta (37) 1079-1086
The concentrations of uranium, thorium and lead and the lead isotopic composition of Luna 20 soil were determined. The data indicate that the Luna 20 soil is mainly a mixture of highland anorthosites and low-K basalt, but little KREEP basalt. The U-Th-Pb systematics...
Lead concentration and isotopic composition in five peridotite inclusions of probable mantle origin
R. E. Zartman, F. Tera
1973, Earth and Planetary Science Letters (20) 54-66
The lead content of five whole-rock peridotite inclusions (four lherzolites and one harzburgite) in alkali basalt ranges from 82 to 570 ppb (parts per billion). Approximately 30–60 ppb of this amount can be accounted for by analyzed major silicate minerals (olivine ≤...
Evaporite deposits of Bogota area, Cordillera Oriental, Colombia
Donald H. McLaughlin Jr.
1972, American Association of Petroleum Geologists Bulletin (56) 2240-2259
Four evaporite-bearing stratigraphic zones are known in Cretaceous strata of the Cordillera Oriental of Colombia north and east of Bogota. The easternmost and oldest zone is probably of Berriasian to Valanginian age. The next oldest is probably late Barremian to early Aptian in age. The third appears to be Aptian....
Orbital-science investigation: Part B: photogrammetric analysis of Apollo 15 records
Frederick J. Doyle
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
The three cameras—stellar, mapping, and panoramic—together with the laser altimeter, all included in the scientific instrument module (SIM) bay, represent an integrated photogrammatric system with extraordinary potential for extending knowledge of the lunar figure, surface configuration, and geological structure....
Photogeology: Part W: Apollo 16 landing site: summary of Earth-based remote sensing data
S.H. Zisk, Harold Masursky, D.J. Milton, G. G. Schaber, R.W. Shorthill, T.W. Thompson
1972, Book chapter, Apollo 16 preliminary science report (NASA SP 315)
The purpose of the infrared (IR) and radar study of the Apollo data is to establish lunar surface conditions in the vicinity of the orbital tracks of the Apollo command modules during the J-series missions. Correlations and comparisons between the Earth-based radar observations, IR observations, and other data will be...
Photogeology: Part B: Cayley Formation interpreted as basin ejecta
R. E. Eggleton, G. G. Schaber
1972, Book chapter, Apollo 16 preliminary science report (NASA SP 315)
The discovery that samples returned from the Cayley Formation at the Apollo 16 landing site consist mainly of nonvolcanic breccias (secs. 6 and 7 of this report) suggests that the hypothesis in which light plains-forming materials may be ejecta from multi-ring basins should be reevaluated (refs 29-15 to 29-17). Improved...
Preliminary geologic investigation of the Apollo 15 landing site
G.A. Swann, N. G. Bailey, R. M. Batson, V. L. Freeman, M. H. Hait, J.W. Head, H. E. Holt, K. A. Howard, J.B. Irwin, K.B. Larson, W.R. Muehlberger, V. S. Reed, J. J. Rennilson, G. G. Schaber, D.R. Scott, L. T. Silver, R. L. Sutton, G. E. Ulrich, H. G. Wilshire, E.W. Wolfe
1972, Book chapter, Apollo 15 preliminary science report (NASA SP-289)
The Apollo 15 lunar module (LM) landed at longitude 03°39'20'' E, latitude 26°26'00'' N on the mare surface of Palus Putredinis on the eastern edge of the Imbrium Basin. The site is between the Apennine Mountain front and Hadley Rille. The objectives of the mission, in order of decreasing priority,...
Photogeology: Part D: Descartes highlands: possible analogs around the Orientale Basin
Carroll Ann Hodges
1972, Book chapter, Apollo 16 preliminary science report (NASA SP 315)
The Descartes highlands are adjacent to the terra plain on which the Apollo 16 lunar module landed (fig. 29-13). A variety of volcanic origins was proposed for the highlands before the mission (refs. 29-4, 29-21, and 29-35 to 29-37), but the returned samples of the area consist almost exclusively of...
An Analysis of the Population Dynamics of Selected Avian Species--With Special References to Changes During the Modern Pesticide Era
Charles J. Henny
1972, Wildlife Research Report No. 1
The impact of pesticides on the mortality rates and recruitment rates of nongame birds during the last 25 years was evaluated by studying the population dynamics of 16 species. A mathematical model showing the relations between population parameters that yielded stable populations was developed. The information needed for the model...
Food resources of the California condor
S.R. Wilbur
1972, Report
Conclusions and Recommendations: Although much of the above information is imprecise and inconclusive, it is evident that the condors foraging habitat is diminishing. Food supply probably is still adequate for free-ranging nonbreeding birds, but could become limited if current land use trends continue. Congregating condors on fewer...
Influence of grounding ice on the Arctic shelf of Alaska
E. Reimnitz, P. Barnes, T. Forgatsch, C. Rodeick
1972, Marine Geology (13) 323-334
Alaska's Beaufort Sea shelf is characterized by small-scale relief with an average amplitude of 1–2 m and wavelength of 50–100 m. Diving observations confirm that much of the bottom roughness reflects the action of grounded ice. Except for areas in the shadow of...
A summary view of water supply and demand in the San Francisco Bay Region, California
Saul E. Rantz
1972, Open-File Report 72-462
This report presents a summary view of the water-supply situation in the nine counties that comprise the San Francisco Bay region, California, and thereby provides water data, based on 1970 conditions, that are needed for regional planning. For the purpose of this study the nine-county region has been divided into...
Availability of water in Kalamazoo County, southwestern Michigan
William Burrows Allen, John B. Miller, Warren W. Wood
1972, Water Supply Paper 1973
Kalamazoo County comprises an area of 572 square miles in the southwestern part of Michigan. It includes parts of the Kalamazoo, St. Joseph, and Paw Paw River basins, which drain into Lake Michigan. The northern two-thirds of the county is drained by the Kalamazoo River and its tributaries. A small...
Water for cranberry culture in the Cranmoor area of central Wisconsin
Louis J. Hamilton
1972, Water Supply Paper 1999-I
The Cranmoor area of central Wisconsin is the principal cranberry producing area of the State. Cranberries are grown in only about 2.5 square miles of an 80-square-mile marsh and swamp in the Cranberry Creek basin. Cranberry growers have built reservoirs and ditches throughout 25 square miles of marsh for better...
Electric analog studies of flow to wells in the Punjab aquifer of West Pakistan
Maurice John Mundorff, G.D. Bennett, Masood Ahmad
1972, Water Supply Paper 1608-N
A series of experiments was performed with a steady-state electric analog simulating a cylindrical segment of the aquifer underlying the plains of the Punjab region of West Pakistan. In most of the experiments recharge was assumed to be from the surface, within a specified radius of influence, and distributed uniformly...
Hydrograph simulation models of the Hillsborough and Alafia Rivers, Florida: a preliminary report
James F. Turner Jr.
1972, Open-File Report 72-382
Mathematical (digital) models that simulate flood hydrographs from rainfall records have been developed for the following gaging stations in the Hillsborough and Alafia River basins of west-central Florida: Hillsborough River near Tampa, Alafia River at Lithia, and north Prong Alafia River near Keysville. These models, which were developed from historical...
Stream depletion factors, Arkansas River valley, southeastern Colorado; A basis for evaluating plans for conjunctive use of ground and surface water
C.T. Jenkins, O.J. Taylor
1972, Open-File Report 72-192
The Arkansas River valley is a stream-aquifer system that consists of the Arkansas River and the associated valley-fill deposits. The hydrology, geology, and water-resources development in the valley have been described by Moore and Wood (1967). The history of delivery of irrigation water by canals indicates that the supply has...
Analysis of the ground-water system by electrical-analog model, Avra Valley, Pima and Pinal Counties, Arizona
Otto Moosburner
1972, Hydrologic Atlas 215
No abstract available....
Reconnaissance geology of the Jabal Bitran quadrangle, Kingdom of Saudi Arabia
Viktor P. Kahr, W.C. Overstreet, J. W. Whitlow, A.O. Ankary
1972, Open-File Report 72-204
The Jabal Bitten quadrangle covers an area of 2833 sq km in the eastern part of the Precambrian Shield in Saudi Arabia. The rocks in the quadrangle are divided geographically alone arcuate north-trending lines into an eastern area of granite intruded by a swarm of dikes of rhyolite and andesite,...
Geologic maps of the Descartes region of the Moon Apollo 16 pre-mission maps
D.J. Milton, C. A. Hodges
1972, IMAP 748
The evolution of the Moon’s surface shows three successive stages (Hartmann, 1970). The earliest, from the beginning...
Significance of ground-water chemistry in performance of North Sahara Tube wells in Algeria and Tunisia
Frank Eldridge Clarke, Blair F. Jones
1972, Water Supply Paper 1757-M
Nine ground-water samples from the principal shallow and deep North Sahara aquifers of Algeria and Tunisia were examined to determine the relation of their chemical composition to corrosion and mineral encrustation thought to be contributing to observed decline in well capacities within a UNESCO/UNDP Special Fund Project area. Although the...
