Reconstruction of crustal blocks of California on the basis of initial strontium isotopic compositions of Mesozoic granitic rocks
Ronald Wayne Kistler, Zell E. Peterman
1978, Professional Paper 1071
Initial 87Sr/ 86 Sr was determined for samples of Mesozoic granitic rocks in the vicinity of the Garlock fault zone in California. These data along with similar data from the Sierra Nevada and along the San Andreas fault system permit a reconstruction of basement rocks offset by the Cenozoic lateral...
Postcrystalline deformation of the Pelona Schist bordering Leona Valley, southern California
James George Evans
1978, Professional Paper 1039
Detailed structural investigations in part of the Leona Valley segment of the San Andreas fault zone, 5-16 km west of Palm dale, focused on the postcrystalline deformation of the block of Mesozoic(?) Pelona Schist underlying Portal and Ritter Ridges. The early fabric of the schist is modified and in places...
Computer model of two-dimensional solute transport and dispersion in ground water
Leonard F. Konikow, J.D. Bredehoeft
1978, Techniques of Water-Resources Investigations 07-C2
This report presents a model that simulates solute transport in flowing ground water. The model is both general and flexible in that it can be applied to a wide range of problem types. It is applicable to one- or two-dimensional problems involving steady-state or transient flow. The model computes changes...
A preliminary study of the Santa Barbara, California, earthquake of August 13, 1978, and its major aftershocks
William Hung Kan Lee, C.E. Johnson, T.L. Henyey, R.L. Yerkes
1978, Circular 797
The ML5.1 Santa Barbara earthquake of August 13, 1978 occurred at lat 34' 22.2'N., long 119 ? 43.0' 4 km south of Santa Barbara, Calif. at a depth of 12.5 km in the northeast Santa Barbara Channel, part of the western Transverse Ranges geomorphic-structural province. This part of the province...
Estimation of ground motion parameters
David M. Boore, W. B. Joyner, A.A. Oliver, R.A. Page
1978, Circular 795
Strong motion data from western North America for earthquakes of magnitude greater than 5 are examined to provide the basis for estimating peak acceleration, velocity, displacement, and duration as a function of distance for three magnitude classes. A subset of the data (from the San Fernando earthquake) is used to...
A table of photopeaks useful in nuclear geophysics
Allan B. Tanner, Frank E. Senftle
1978, Open-File Report 78-531
The table lists full-energy, single-escape, and double-escape photopeak energies corresponding to about 1800 x- and gamma rays derived from natural radioactivity, X-ray fluorescence, neutron reactions, and induced radioactivity. Photon lines have been selected on the basis of their importance in borehole logging by nuclear methods. The mode of production of...
Hydrologic data for urban storm runoff from three localities in the Denver metropolitan area, Colorado
Sherman R. Ellis
1978, Open-File Report 78-410
Urban storm-runoff data, collected from 1975 to 1977, on three catchment areas in the Denver, Colo., metropolitan area are presented. The catchment are predominantly a single-family residential catchment area in Littleton, a multifamily residential and commercial catchment area in Lakewood, and a high-density residential and commercial catchment area in Denver....
Characteristics of the Landsat Multispectral Data System
James V. Taranik
1978, Open-File Report 78-187
Landsat satellites were launched into orbit in 1972 and 1975. Additional Landsat satellites are planned for launch in 1978 and 1981. The satellites orbit the Earth at an altitude of approximately 900 km and each can obtain repetitive coverage of cloud-free areas every 18 days. A sun-synchronous orbit is used...
Simulation model of Cryptomonas ovata population dynamics in southern Kootenay Lake, British Columbia
James E. Cloern
1978, Ecological Modelling (4)-133
A one-dimensional transient model is developed to simulate observed population dynamics of a small flagellate (Cryptomonas ovata) in southern Kootenay Lake, B.C., during a 1-year period (1 June 1974-31 May 1975). The model considers advective displacement of C. ovata as water flows from its southern entrance into the lake and moves northward...
A von Bertalanffy growth model with a seasonally varying coefficient
James E. Cloern, Frederic H. Nichols
1978, Journal of the Fisheries Research Board of Canada (35) 1479-1482
The von Bertalanffy model of body growth is inappropriate for organisms whose growth is restricted to a seasonal period because it assumes that growth rate is invariant with time. Incorporation of a time-varying coefficient significantly improves the capability of the von Bertalanffy equation to describe changing body size of both...
Digital and photographic processing study for shallow seas mapping from landsat
Brian P. Bauer, Lincoln Perry
1978, Report
The application of contrast stretch and haze removal techniques to Landsat/MSS imagery for shallow seas bathymetry is discussed. The application of these techniques is based upon procedures inherent in the EDIPS system processing. Application of both MSS band 4 and band 5 data are discussed in lx and 3x gain...
Oxygen isotope composition of subglacially precipitated calcite: Possible paleoclimatic implications
B.B. Hanshaw, B. Hallet
1978, Science (200) 1267-1270
Isotopic analyses of subglacially precipitated calcite from near a modern temperate glacier show that the δ18O (= 18O/ 16O relative to standard mean ocean water) of the calcite records the δ18O of the ice from that glacier. It may therefore be possible to determine the δ18O of Pleistocene ice sheets on the...
Late Miocene mollusks from the Queen Charlotte Islands, British Columbia, Canada
Warren O. Addicott
1978, Journal of Research of the U.S. Geological Survey (6) 677-689
A fauna of bivalve mollusks, scattered gastropods, and an echinoid from exposures of the Skonun Formation in the northeastern part of Graham Island is indicative of an early late Miocene age and correlation with the provincial Wishkahan Stage. The molluscan assemblages are from the upper 600 of the 1800-m-thick marine...
Wood River mining district, Idaho - intrusion-related lead-silver deposits derived from country rock source
Wayne E. Hall, Robert O. Rye, Bruce R. Doe
1978, Journal of Research of the U.S. Geological Survey (6) 579-592
Lead-silver deposits in the Wood River mining district occur in shear zones in hornfelsed argillite of the Devonian Milligen Formation near granitic plutons and under the Wood River thrust fault. The principal ore minerals are argentiferous galena and sphalerite; siderite is the principal gangue. The δ34S values of the sulfide...
Model aids planners in predicting rising ground-water levels in San Bernardino, California
William F. Hardt, C. B. Hutchinson
1978, Groundwater (16) 424-431
The city of San Bernardino is in a semiarid inland valley about 60 miles (100 kilometers) east of Los Angeles. The southern part of the city is traversed by the San Jacinto fault. Adjacent to the upgradient (northeast) side of the fault is a 10 square mile (26 square kilometers)...
Trend analysis of vegetation in Louisiana's Atchafalaya river basin
Calvin P. O’Neil, J. Edward deSteiguer, Gary W. North
1978, Pecora IV Proceedings of the Symposium 114-136
The purpose of the study was to determine vegetation succession trends; produce a current vegetation map of the basin; and to develop a mathematical model capable of predicting vegetation changes based on hydrologic factors. A statistical relationship of forests and hydrological variables with forest succession constraints predicted forest acreage...
Statistical inference from capture data on closed animal populations
David L. Otis, Kenneth P. Burnham, Gary C. White, David R. Anderson
1978, Wildlife Monographs 3-135
The estimation of animal abundance is an important problem in both the theoretical and applied biological sciences. Serious work to develop estimation methods began during the 1950s, with a few attempts before that time. The literature on estimation methods has increased tremendously during the past 25 years (Cormack...
The stochastic variation of instream values in rivers
Robert T. Milhous, Ken D. Bovee
1978, Book, Verification of Mathematical and Physical Models in Hydraulic Engineering Proceedings: 26th Annual Hydraulics Division specialty Conference
No abstract available....
Three-dimensional finite-difference model of ground-water system underlying the Muskegon County wastewater disposal system, Michigan
Michael G. McDonald, William B. Fleck
1978, Journal of Research of the U.S. Geological Survey (6) 307-318
The spray irrigation system used by Muskegon County for wastewater treatment is the largest of its kind in the United States. It has 2200 hectares of irrigated farm land, 688 hectares of treatment lagoons, and 105 kilometers of drainage tile. The system has a design capacity of 1.8 cubic meters...
A field evaluation of subsurface and surface runoff. II. Runoff processes
D.H. Pilgrim, D.D. Huff, T.D. Steele
1978, Journal of Hydrology (38) 319-341
Combined use of radioisotope tracer, flow rate, specific conductance and suspended-sediment measurements on a large field plot near Stanford, California, has provided more detailed information on surface and subsurface storm runoff processes than would be possible from any single approach used in isolation. Although the plot was surficially uniform, the...
Numerical simulation of dissolved silica in the San Fancisco Bay
David H. Peterson, John F. Festa, T. J. Conomos
1978, Estuarine and Coastal Marine Science (7) 99-116
A two-dimensional (vertical) steady-state numerical model that simulates water circulation and dissolved-silica distributions is applied to northern San Francisco Bay. The model (1) describes the strong influence of river inflow on estuarine circulation and, in turn, on the biologically modulated silica concentration, and (2) shows how rates of silica uptake...
Preliminary evaluation of the floating dome method of measuring reaeration rates
Doyle W. Stephens
1978, Journal of Research of the U.S. Geological Survey (6) 547-552
The floating dome method of measuring reaeration rates was evaluated using a modified tracer technique and a disturbed equilibrium technique. The lack of agreement between results of the floating dome method and the other methods was attributed to limitations in instrument accuracy amplified by physical relationships of the dome to...
Definition of regional relationships between dissolved solids and specific conductance, Susquehanna River basin, Pennsylvania and New York
David J. Lystrom, Frank A. Rinella, William D. Knox
1978, Journal of Research of the U.S. Geological Survey (6) 541-545
This report presents statistical tests for assessing the accuracy and validity of two regional models of the relationship between dissolved-solids concentration and specific conductance. These models are used to estimate dissolved-solids concentrations based on specific-conductance measurements. The two regional models are compared with station models for 27 stream sites in...
Uranium in waters and aquifer rocks at the Nevada Test Site, Nye County, Nevada
Robert A. Zielinski, John N. Rosholt
1978, Journal of Research of the U.S. Geological Survey (6) 489-498
Previous chemical, geological, and hydrological information describing the physical and chemical environment of the Nevada Test Site (a Federal reserve for the testing of nuclear explosive devices) has been combined with new radiochemical and isotope data for water and rock samples in order to explain the behavior of uranium during...
Estimation of the size of a closed population when capture probabilities vary among animals
K.P. Burnham, W.S. Overton
1978, Biometrika (65) 625-633
A model which allows capture probabilities to vary by individuals is introduced for multiple recapture studies n closed populations. The set of individual capture probabilities is modelled as a random sample from an arbitrary probability distribution over the unit interval. We show that the capture frequencies are a sufficient statistic....
