Hydrology of the North Cascades region, Washington: 2. A proposed hydrometeorological streamflow prediction method
Wendell V. Tangborn, Lowell A. Rasmussen
1976, Water Resources Research (12) 203-216
On the basis of a linear relationship between winter (October-April) precipitation and annual runoff from a drainage basin (Rasmussen and Tangborn, 1976) a physically reasonable model for predicting summer (May-September) streamflow from drainages in the North Cascades region was developed. This hydrometeorological prediction method relates streamflow for a season beginning...
Sequential bidding models--a decision theoretic approach
Emil D. Attanasi, S.R. Johnson
1975, Industrial Organization Review (3) 49-55
No abstract available....
A model for earthquakes near Palisades Reservoir, southeast Idaho
David Schleicher
1975, Journal of Research of the U.S. Geological Survey (3) 393-400
The Palisades Reservoir seems to be triggering earthquakes: epicenters are concentrated near the reservoir, and quakes are concentrated in spring, when the reservoir level is highest or is rising most rapidly, and in fall, when the level is lowest. Both spring and fall quakes appear to be triggered by minor...
Possible extension of mineral belts, northern part of Coeur d'Alene district, Idaho
Garland B. Gott, Joseph M. Botbol
1975, Journal of Research of the U.S. Geological Survey (3) 1-7
The ore deposits in the northern part of the Coeur d'Alene district are located within rocks of the Belt Supergroup that have been intruded by Cretaceous quartz monzonites. Lead-zinc-silver replacement veins constitute most of the deposits. The geometry of the district has been modified by post-ore faulting along the Osburn,...
A digital-computer model for estimating hydrologic changes in the aquifer system in Dane County, Wisconsin
R.S. McLeod
1975, Information Circular 30
The extensive use of ground water for water supply within Dane County has resulted in the need for an appraisal of the area's ground-water resources. Water-resources planners and other water-oriented groups have expressed concern over ground-water level declines and reductions in streamflow that are occurring as a result of heavy...
Land use information and air quality planning
Wallace E. Reed, John E. Lewis
1975, Final Report Volume 7
The pilot national land use information system developed by the U.S. Geological Survey in the Central Atlantic Regional Ecological Test Site project has provided an improved technique for estimating emissions, diffusion, and impact patterns of sulfur dioxide (SO2) and particulate matter. Implementation of plans to control air quality requires land...
Analysis of the rate of wildcat drilling and deposit discovery
L.J. Drew
1975, Journal of the International Association for Mathematical Geology (7) 395-414
The rate at which petroleum deposits were discovered during a 16-yr period (1957–72) was examined in relation to changes in a suite of economic and physical variables. The study area encompasses 11,000 mi2 and is located on the eastern flank of the Powder River Basin. A two-stage...
Recent sedimentary history of Lake Monona, Wisconsin
Gilbert C. Bortleson, G.F. Lee
1975, Water, Air, & Soil Pollution (4) 89-98
Chemical analyses from two short cores in Lake Monona show that pronounced changes in chemical stratigraphy have occurred since white man moved into Madison and southern Wisconsin and began modifying the area. Since the mid to late 1800's, there has been an appreciable increase in P,...
A major geothermal anomaly in the Gulf of California
L.A. Lawver, D.L. Williams, R. P. Von Herzen
1975, Nature (257) 23-28
We have mapped a 3-km wide, high heat flow anomaly with a maximum value of 30 μcalorie cm −2 s−1 within a zone of seafloor extension in the central Gulf of California. From seismic reflection data and thermal modelling we suggest that the anomaly is caused by a 1-km wide...
U-Th-Pb systematics of selected samples from Apollo 17, Boulder 1, Station 2
P.D. Nunes, M. Tatsumoto
1975, The Moon (14) 463-471
Nine U-Th-Pb whole-rock analyses of selected brecciated materials from sample 72215 and one analysis of a pigeonite basalt clast from 72275 are presented. Both samples are from Boulder 1, Apollo 17. These data supplement previous Boulder 1 U-Th-Pb analyses of samples 72275 and 72255. U and Th concentrations indicate that...
Two models for earthquake forerunners
V.I. Mjachkin, W.F. Brace, G.A. Sobolev, James H. Dieterich
1975, Pure and Applied Geophysics PAGEOPH (113) 169-181
Similar precursory phenomena have been observed before earthquakes in the United States, the Soviet Union, Japan, and China. Two quite different physical models are used to explain these phenomena. According to a model developed by US seismologists, the so-called dilatancy diffusion model,...
Lead isotope relations in oceanic Ridge basalts from the Juan de Fuca-Gorda Ridge area N.E. Pacific Ocean
S. E. Church, M. Tatsumoto
1975, Contributions to Mineralogy and Petrology (53) 253-279
Lead isotopic analyses of a suite of basaltic rocks from the Juan de Fuca-Gorda Ridge and nearby seamounts confirm an isotopically heterogeneous mantle known since 1966. The process of mixing during partial melting of a heterogeneous mantle necessarily produces linear data arrays that can be interpreted...
The nature of surface tilt along 85 km of the San Andreas fault-preliminary results form a 14-instrument array
C.E. Mortensen, M.J.S. Johnston
1975, Pure and Applied Geophysics PAGEOPH (113) 237-249
The continuous monitoring of surface deformation near active faults is clearly necessary for an understanding of elastic strain accumulation and elastic and anelastic strain release associated with earthquakes. Fourteen 2-component tiltmeters have been installed in shallow boreholes along 85 km of the currently most active section...
Linkage effects between deposit discovery and postdiscovery exploratory drilling
Lawrence J. Drew
1975, Journal of Research of the U.S. Geological Survey (3) 169-179
For the 1950-71 period of petroleum exploration in the Powder River Basin, northeastern Wyoming and southeastern Montana, three specific topics were investigated. First, the wildcat wells drilled during the ambient phases of exploration are estimated to have discovered 2.80 times as much petroleum per well as the wildcat wells drilled...
Preliminary results of a gravity survey of the Henrys Lake quadrangle, Idaho and Montana
Donald L. Peterson, Irving J. Witkind
1975, Journal of Research of the U.S. Geological Survey (3) 228
A gravity survey of the Henrys Lake quadrangle shows that a gravity low with about 10 milligals of closure coincides with the Henrys Lake basin. The low is interpreted to reflect a basin fill of 1,100 m or more of Cenozoic sediments and volcanic rock. The data indicate that on...
Cylindrical jointing in mafic dikes, central Beartooth Mountains, Montana
Theodore J. Armbrustmacher, Frank S. Simons
1975, Journal of Research of the U.S. Geological Survey (3) 213-221
Cylindrical joints are well displayed in two Precambrian mafic dikes that cut granitic gneiss in the central Beartooth Mountains, Mont. The dikes are vertical and about 23 m (75 ft) and 23 to 46 m (75-150 ft) thick, respectively. The cylindrical joints are perpendicular to the dike walls, and the...
The Pikes Peak batholith, Colorado front range, and a model for the origin of the gabbro-anorthosite-syenite-potassic granite suite
F. Barker, D. R. Wones, W. N. Sharp, G. A. Desborough
1975, Precambrian Research (2) 99-160
This study of the Pikes Peak batholith includes the mineralogy and petrology of quartz syenite at West Creek and of fayalite-bearing and fayalite-free biotite granite near Mount Rosa; major element chemistry of the batholith; comparisons with similar postorogenic, intracratonic, sodic to potassic intrusives; and genesis of the batholith.The batholith is...
Photointerpretive map of landslides and surficial deposits of northernmost Napa County, California
Robert H. Wright, G.O. Reid
1975, Miscellaneous Field Studies Map 677
This map shows various types of landslide deposits, scarps, and related topographic features, in addition to other types of surficial deposits, in northernmost Napa County, California. It was prepared by viewing overlapping vertical aerial photographs with a stereoscope. This method allows the geologist to see a three-dimensional model of the...
Geochemical Exploration Techniques Applicable in the Search for Copper Deposits
Maurice A. Chaffee
1975, Professional Paper 907-B
Geochemical exploration is an important part of copper-resource evaluation. A large number of geochemical exploration techniques, both proved and untried, are available to the geochemist to use in the search for new copper deposits. Analyses of whole-rock samples have been used in both regional and local geochemical exploration surveys in the...
Optimizing information transfer in a stream-gaging network
Philip Hadley Carrigan Jr., Harold G. Golden
1975, Water-Resources Investigations Report 75-30
Networks of small stream (drainage area less than 50 square miles or 130 square kilometres) flood gages have been operated throughout the country for a number of years to supplement flood information already available for large streams. The goal in operating these networks has been to obtain sufficient data for...
MIX2 : a computer program for modeling chemical reaction in natural waters
Niel Plummer, David L. Parkhurst, David R. Kosiur
1975, Water-Resources Investigations Report 75-61
Digital model analysis of the principal artesian aquifer, Glynn County, Georgia
Richard E. Krause, Harlan B. Counts
1975, Water-Resources Investigations Report 75-1
No abstract available. ...
A predictive computer model of the Lower Cretaceous aquifer, Franklin area, southeastern Virginia
O. J. Cosner
1975, Water-Resources Investigations Report 51-74
The Lower Cretaceous aquifer of Southeastern Virginia is simulated in this study. The aquifer is only a few feet thick along the Fall Line, where it is near or at the surface, but it thickens and dips to the east. At Franklin where the top of the aquifer is 220...
Hydrology of the Albemarle-Pamlico region, North Carolina : A preliminary report on the impact of agricultural developments
Ralph C. Heath
1975, Water-Resources Investigations Report 75-9
Extensive agricultural land clearing and drainage operations underway in a 650 square mile part of the Albemarle-Pamlico region--a 1,634 square mile peninsula in North Carolina lying between Albemarle Sound on the North and the Pamlico River on the south--are changing the hydrology of the area. The artificial drainage system being constructed...
Time-of-travel of solutes in the Trinity River basin, Texas, September 1973 and July-August 1974
R.H. Ollman
1975, Open-File Report 75-558
The U.S. Geological Survey, in cooperation with the U.S. Army Corps of Engineers and the Trinity River Authority of Texas, conducted timee-of-travel studies in the Trinity River basin during a period of low flow September 19-23, 1973, and during a period of moderate flow July 23-August 1, 1974. The purpose...
