Aeromagnetic maps with geologic interpretations for the Tularosa Valley, south-central New Mexico
G. D. Bath
1977, Open-File Report 77-258
An aeromagnetic survey of the Tularosa Valley in south-central New Mexico has provided information on the igneous rocks that are buried beneath alluvium and colluvium. The data, compiled as residual magnetic anomalies, are shown on twelve maps at a scale of 1:62,500. Measurements of magnetic properties of samples collected in...
Analysis of runoff from small drainage basins in Wyoming
Gordon S. Craig, James G. Rankl
1977, Open-File Report 77-727
A flood-hydrograph study has defined the magnitude and frequency of flood volumes and flood peaks that can be expected from drainage basins smaller than 11 square miles in the plains and valley areas of Wyoming. Rainfall and runoff data, collected for 9 years on a seasonal basis (April through September),...
Water resources of the Maunabo Valley, Puerto Rico
D. G. Adolphson, M.A. Seijo, Tully M. Robison
1977, Water-Resources Investigations Report 76-115
The Maunabo Valley, in southestern Puerto Rico, consists of a 3.5-square-mile alluvial plain surrounded by hills of metavolcanic and igneous intrusive rocks. The principal source of ground water in the basin is a shallow unconfined aquifer in the valley alluvium. Continuous pumping of the shallow aquifer has induced the flow...
Characteristics of thin-skinned style of deformation in the southern Appalachians, and potential hydrocarbon traps
Leonard Dorrean Harris, Robert C. Milici
1977, Professional Paper 1018
This paper is an attempt to focus attention on the more important characteristics of the thin-skinned style of deformation in the southern Appalachians by presenting a model to illustrate the regional anatomy and to identify likely structures that need additional investigation as possible prospects for hydrocarbon accumulation. Five distinct changes...
Study results of 9 sites used by off-road vehicles that illustrate land modifications
Howard Gordon Wilshire
1977, Open-File Report 77-601
Hydrologic evaluation of the Arikaree Formation near Lusk, Niobrara and Goshen counties, Wyoming
M. A. Crist
1977, Water-Resources Investigations Report 77-111
The Arikaree Formation of early Miocene age is an aquifer of large areal extent and is composed of very fine grained, poorly bedded, loosely to moderately cemented sandstone and interbedded silt, limestone, and many concretionary layers. The area studied is about 800 square miles in southern Niobrara and northern Goshen...
Effects of the catastrophic flood of December 1966, north rim area, eastern Grand Canyon, Arizona
Maurice E. Cooley, B. N. Aldridge, Robert C. Euler
1977, Professional Paper 980
Precipitation from the unusual storm of December 1966 was concentrated on highlands in northern Arizona, southwestern Utah , southern Nevada, and south-central California and caused widely scattered major floods in the four States. In Arizona the largest amount of precipitation was in the north rim area of eastern Grand Canyon,...
Quality of rivers of the United States, 1974 water year: based on the National Stream Quality Accounting Network (NASQAN)
Richard O. Hawkinson, John F. Ficke, L.G. Saindon
1977, Open-File Report 77-151
The National Stream Quality Accounting Network (NASQAN) was established by the U.S Geological Survey to determine and compare the quality at key locations on the Nation 's major rivers. There are 345 stations in the network--data from the first 101 of these (those operating during the 1974 water year) are...
Digital computer simulation model of the Englishtown aquifer in the northern coastal plain of New Jersey
W. D. Nichols
1977, Water-Resources Investigations Report 77-73
Continued decline of water levels in the Englishtown aquifer, in New Jersey, has caused considerable concern regarding the ability of the aquifer to meet future yield demands. A detailed study of the capability of the aquifer to yield water entailed the use of a digital computer simulation model to evaluate...
Glastonbury gneiss body, a modified Oliverian dome, and related rocks in south-central Massachusetts and north-central Connecticut: petrology, geochemistry, and origin
Gerhard W. Leo, Douglas G. Brookins
1977, Open-File Report 77-554
Analysis of street sweepings, Portland, Oregon
Timothy L. Miller, Joseph F. Rinella, Stuart W. McKenzie, Jerry Parmenter
1977, Report
A brief study involving collection and analysis of street sweepings was undertaken to provide the U.S. Army Corps of Engineers with data on physical, chemical, and biological characteristics of dust and dirt accumulating on Portland streets. Most of the analyses selected were based on the pollutant loads predicted by the...
Submarine seepage of natural gas in Norton Sound, Alaska
J.D. Cline, M.L. Holmes
1977, Science (198) 1149-1153
Unusual concentrations of dissolved two- to four-carbon alkanes were observed in the waters in Norton Sound in a localized area approximately 40 kilometers south of Nome, Alaska, in 1976. The hydrocarbons were identified in the near-bottom waters downcurrent for more than 100 kilometers from a sea-floor point source. Preliminary dynamic...
Petrology of basalt from the East Pacific Rise near 21 degrees North latitude
James G. Moore, William R. Normark, Gordon R. Hess, Charles E. Meyer
1977, Journal of Research of the U.S. Geological Survey (5) 753-759
Four dredge hauls of fresh tholeiitic basalt lava were recovered from a 3.3-kilometer-wide zone at the axis of the East Pacific Rise. Petrologic and major-element chemical studies indicate that the basalt ranges from moderately fractionated varieties to one sample enriched in iron and titanium. The four samples show no symmetrical...
Geology of the gabbroic complex along the northern border of the Josephine Peridotite, Vulcan Peak area, southwestern Oregon
R. A. Loney, Glen R. Himmelberg
1977, Journal of Research of the U.S. Geological Survey (5) 761-781
The terrane bordering the alpine-type Josephine Peridotite on the north in the Vulcan Peak area, southwestern Oregon, is composed of intrusive hornblende gabbro (Middle Jurassic) and scattered remnants of clinopyroxene-bearing ultramafic rocks and amphibolite. The amphibolite, which preliminary analyses suggest is of andesitic composition, has undergone regional metamorphism to the...
Solution of three-dimensional groundwater flow equations using the strongly implicit procedure
P.C. Trescott, S. P. Larson
1977, Journal of Hydrology (35) 49-60
A three-dimensional numerical model has been coded to use the strongly implicit procedure for solving the finite-difference approximations to the ground-water flow equation. The model allows for: (1) the representation of each aquifer and each confining bed by several layers; and (2) the use of an anisotropic hydraulic conductivity at...
Lunar surface chemistry: A new imaging technique
C.G. Andre, M.J. Bielefeld, E. Eliason, L.A. Soderblom, I. Adler, J.A. Philpotts
1977, Science (197) 986-989
Detailed chemical maps of the lunar surface have been constructed by applying a new weighted-filter imaging technique to Apollo 15 and Apollo 16 x-ray fluorescence data. The data quality improvement is amply demonstrated by (i) modes in the frequency distribution, representing highland and mare soil suites, which are not evident...
A new curved baculite from the Upper Cretaceous of Wyoming
W. A. Cobban
1977, Journal of Research of the U.S. Geological Survey (5) 457-462
Baculites reduncus, n. sp., is a moderately large ammonite that has a curved shell, a large angle of taper, and a stout ovate cross section. Conspicuous broad, arcuate ribs cross the upper two-thirds of the flank. The suture, which is fairly complex, has a distinctive lateral lobe. All the types...
Magnitude, distance, and intensity data for C.I.T. strong motion records
Robin K. McGuire, James A. Barnhard
1977, Journal of Research of the U.S. Geological Survey (5) 437-443
The site Modified Mercalli intensities and epicentral distances of strong motion records published by the California Institute of Technology are reported, as well as the magnitude, focal depth, and maximum Modified Mercalli intensity of the event associated with each record. These data were obtained from original sources. The use of...
A Galerkin, finite-element analysis of steady-state flow and heat transport in the shallow hydrothermal system in the East Mesa area, Imperial Valley, California
R.E. Miller
1977, Journal of Research of the U.S. Geological Survey (5) 497-509
A steady-state simulation model was applied to the shallow hydrothermal system in the East Mesa area of Imperial Valley, Calif. The steady-state equations of flow and heat transport were solved by use of a Galerkin, finite-element method. A solution was obtained by iterating between the temperature and pressure equations, using...
Storage of treated sewage effluent and stormwater in a saline aquifer, Pinellas Peninsula, Florida
J.S. Rosenshein, J.J. Hickey
1977, Groundwater (15) 284-293
The Pinellas Peninsula, an area of 750 square kilometres (290 square miles) in coastal west-central Florida, is a small hydrogeologic replica of Florida. Most of the Peninsula's water supply is imported from well fields as much as 65 kilometres (40 miles) inland. Stresses on the hydrologic environment of the Peninsula...
Seed production, seed populations in the soil and seedling production after fire for two congeneric pairs of sprouting and nonsprouting chaparral shrubs
Jon E. Keeley
1977, Ecology (58) 820-829
A study of seed production, seed storage in the soil, and seedling production after fire was undertaken for a sprouting and a nonsprouting congenerica pair of species of Ceanothus and Arctostaphylos. All species exhibited large fluctuations in annual seed production. There was a significant correlation between fruit production and precipitation...
Pleistocene barrier bar seaward of ooid shoal complex near Miami, Florida
Robert B. Halley, Shinn Shinn, J. Harold Hudson, Barbara H. Lidz
1977, American Association of Petroleum Geologists Bulletin (61) 519-526
An ooid sand barrier bar of Pleistocene age was deposited along the seaward side of an ooid shoal complex southwest of Miami, Florida. The bar is 35 km long, about 0.8 km wide, elongate parallel with the trend of the ooid shoal complex...
Effects of dredged channels on trace-metal migration in an estuary
Charles W. Holmes
1977, Journal of Research of the U.S. Geological Survey (5) 243-251
Determination of trace-metal levels in the sediments of the Matagorda Bay system revealed anomalously high mercury values. The distribution of the mercury-rich sediment deposits is the result of the sedimentological regime of the bay system produced by the tidal currents in the dredged channel. According to this model, the oxygenated...
High temperature heat content and heat capacity of silicate glasses: experimental determination and a model for calculation
Charles R. Bacon
1977, American Journal of Science (277) 109-135
Knowledge of the thermodynamic properties of silicate melts is fundamental to quantitative characterization of igneous systems. This paper presents new data on one of these properties, heat content, for silicate glasses and supercooled silicate liquids and derives partial molar heat contents for the glasses. The high temperature heat contents of...
Compositional variations of young basalts in the Mid-Atlantic Ridge rift valley near lat 36°49′N
W.B. Bryan, James G. Moore
1977, GSA Bulletin (88) 556-570
Fifty acoustically positioned samples of fresh basalt were collected by the submersible Alvin from the median valley of the Mid-Atlantic Ridge during the French American Mid-Ocean Undersea Study (FAMOUS) in the summer of 1974. The samples show regular compositional variations from the center of the rift valley (central lava flows) out to...
