One hundred years of earthquake recording at the University of California
B. A. Bolt
1987, Earthquakes & Volcanoes (USGS) (19) 88-92
Seismology is a relatively new science, so there is special reason to celebrate the first permanent earthquake observatories in America, set up by the University of California 100 years ago. The best seismographs then available arrived from England in 1887 and were installed at Lick Observatory on Mt.Hamilton and at the...
Geology and hydrology of the deep bedrock aquifers in eastern Colorado
S. G. Robson, E. R. Banta
1987, Water-Resources Investigations Report 85-4240
Deep bedrock aquifers are present in rocks of Cretaceous through Pennsylvanian age in eastern Colorado. These aquifers are the Laramie-Fox Hills (the uppermost aquifer studied), Fort Hays-Codell, Dakota-Cheyenne, Entrada-Dockum, Lyons, and Fountain. Structural mapping indicates the aquifers are 2,000 to 9,000 ft below land surface in most of eastern Colorado...
Implications of the northwestwardly younger age of the volcanic rocks of west-central California: Alternative Interpretation
Richard G. Stanley
1987, GSA Bulletin (98) 612-614
Fox and others (1985) have made an important contribution to our understanding of iihe evolution of the Mendocino triple junction and the San Andreas transform. They have summarized a large amount of data on the ages and distribution of volcanic centers along the central California coast; their summary clearly shows...
An inexpensive device for recording animal behavior
Craig R. Ely
1987, Wildlife Society Bulletin (15) 264-265
Recording animal behavior is tedious and time consuming when behaviors are recorded on tape and transcribed to data sheets. Data loggers circumvent these problems, but can be prohibitively expensive and may require extensive programming (see Hensler et al. [1986]). I describe an inexpensive, efficient alternative for recording behavioral observations....
Preliminary report on gaseous hydrocarbons in sediment and seeps, offshore Eel River basin, California
M.E. Field, K.A. Kvenvolden
1987, Conference Paper, Tectonics, sedimentation and evolution of the Eel River and associated coastal basins of Northern California
No abstract available ...
Crude oil identification with electrothermal vaporization-multiple wavelength absorption spectrometry
J.M. Shekiro Jr., R. K Skogerboe, Howard E. Taylor
1987, Chemosphere (16) 983-988
A spectrometric technique utilizing electrothermal vaporization (graphite furnace) and gas phase-multiple wavelength absorption with photodiode array detection is used to characterize crude oil....
Tectonic morphology of offshore Eel River basin, California
M.E. Field, J.V. Gardner, D.E. Drake, D.A. Caccione
1987, Conference Paper, Tectonics, sedimentation and evo lution of the Eel River and associated coastal basins of Northern California
No abstract available ...
Ground-water withdrawals and changes in ground-water levels, ground-water quality, and land-surface subsidence in the Houston district, Texas, 1980-84
James F. Williams III, C.E. Ranzau Jr.
1987, Water-Resources Investigations Report 87-4153
During 1980-84, ground-water withdrawals from the Chicot and Evangeline aquifers in the Houston district decreased from 511 million gallons per day to 444 million gallons per day. This 13-percent decrease was due to the increased availability of surface water and a decreased demand for water. The largest decreases in ground-water...
Using a spatial and tabular database to generate statistics from terrain and spectral data for soil surveys
E.A. Horvath, E. A. Fosnight, A. A. Klingebiel, D. G. Moore, J.E. Stone
W.U. Reybold, G.W. Petersen, editor(s)
1987, Book chapter, Soil survey techniques, SSSA Special Publication 20
A methodology has been developed to create a spatial database by referencing digital elevation, Landsat multispectral scanner data, and digitized soil premap delineations of a number of adjacent 7.5-min quadrangle areas to a 30-m Universal Transverse Mercator projection. Slope and aspect transformations are calculated from elevation data and grouped according...
Lower Paleozoic carbonate rocks of the Baird Mountains quadrangle, western Brooks Range, Alaska
Julie A. Dumoulin, Anita G. Harris
Irvin L. Tailleur, Paul Weimer, editor(s)
1987, Book chapter, Alaskan North Slope Geology, Volumes I and II (SEPM Book 50)
Lower Paleozoic carbonate rocks in the Baird Mountains quadrangle form a relatively thin, chiefly shallow-water succession that has been thrust-faulted and metamorphosed to blueschist and greenschist facies. Although this succession was thought to be mostly Devonian until recently, a large part of it is in fact pre-Silurian in age.Middle and...
Life history and ecology requirements of the Moapa dace (Moapa coracea)
G.G. Scoppettone
1987, Report
No abstract available ...
Seismicity map of the state of Pennsylvania
C. W. Stover, B.G. Reagor, S. T. Algermissen
1987, Miscellaneous Field Studies Map 1280
This map is one of a series of seismicity maps produced by the U. S. Geological Survey that show earthquake data of individual states or groups of states at the scale of 1:1,000,000. This map shows only those earthquakes with epicenters located within the boundaries of Pennsylvania, even though earthquakes...
A compositional multiphase model for groundwater contamination by petroleum products: 1. Theoretical considerations
M. Yavuz Corapcioglu, Arthur L. Baehr
1987, Water Resources Research (23) 191-200
A mathematical model is developed to describe the fate of hydrocarbon constituents of petroleum products introduced to soils as an immiscible liquid from sources such as leaking underground storage tanks and ruptured pipelines. The problem is one of multiphase transport (oil (immiscible), air, and water phases) of a reactive contaminant...
Did the 1982-1983 El Niño-Southern Oscillation Affect Seabirds in Alaska?
Scott A. Hatch
1987, The Wilson Bulletin (99) 468-474
The causes and effects of the oceanographic and atmospheric phenomena known as El Nino and the Southern Oscillation (ENSO) have been studied intensively in recent years (Cane 1983, Rasmusson and Wallace 1983, Barber and Chave 1983, Cane and Zebiak 1985). ENSOs occur at semiregular intervals of 3-4 years, and the...
Satellites sense rangeland wildfire hazard (summary)
Donald Westover, Franklin G. Sadowski
1987, Fire Management Notes (48) 9-11
Each day, one or more National Oceanic and Atmospheric Administration (NOAA) satellites, passing over Nebraska, beam back to receiving stations on earth an enormous amount of information about what they sense below. The Nebraska Forest Service has been investigating the possible use of some of this information to evaluate the...
Ground-water flow and shallow-aquifer properties in the Rio Grande inner valley south of Albuquerque, Bernalillo County, New Mexico
K. D. Peter
1987, Water-Resources Investigations Report 87-4015
The purpose of this investigation was to describe the water table configuration and its temporal variations, estimate aquifer properties, and evaluate the interaction of groundwater and surface water in the inner valley of the Rio Grande in southern Albuquerque, New Mexico, where groundwater contamination is a continuing concern. The upper...
Solute geochemistry of the Snake River plain regional aquifer system, Idaho and eastern Oregon
Warren W. Wood, Walton H. Low
1987, Open-File Report 86-247
Three geochemical methods were used to determine chemical reactions that control solute concentrations in the Snake River Plain regional aquifer system: (1) Calculation of a regional solute balance within the aquifer and of mineralogy in the aquifer framework to identify solute reactions, (2) comparison of thermodynamic mineral saturation indices with...
Age of uranium mineralization at the Jabiluka and Ranger deposits, Northern Territory, Australia: New U-Pb isotope evidence
K.R. Ludwig, R. I. Grauch, C.J. Nutt, J. T. Nash, D. Frishman, K. R. Simmons
1987, Economic Geology (82) 857-874
The Ranger and Jabiluka uranium deposits are the largest in the Alligator Rivers uranium field, which contains at least 20 percent of the world's low-cost uranium reserves. Ore occurs in early Proterozoic metasediments, below an unconformity with sandstones of the 1.65-b.y.-old Kombolgie Formation. This study has used U-Pb isotope data...
U.S. Geological Survey: earth science in the public service
Water Resources Division, U.S. Geological Survey
1987, Report
No abstract available....
Mid-Holocene climate in Northern Minnesota
R. M. Forester, L.D. Delorme, J.P. Bradbury
1987, Quaternary Research (28) 263-273
Study of Holocene ostracodes and diatoms from Elk Lake, in North-Central Minnesota, indicates that the local climate of the mid-Holocene can be subdivided into three intervals. Throughout interval 1 (ca. 7800 to 6700 yr B.P.), climate was colder and much drier than today. During intervals 2 and 3 (ca. 6700...
Stable isotope dilution analysis of hydrologic samples by inductively coupled plasma mass spectrometry
John R. Garbarino, Howard E. Taylor
1987, Analytical Chemistry (59) 1568-1575
Inductively coupled plasma mass spectrometry is employed in the determination of Ni, Cu, Sr, Cd, Ba, Ti, and Pb in nonsaline, natural water samples by stable isotope dilution analysis. Hydrologic samples were directly analyzed without any unusual pretreatment. Interference effects related to overlapping isobars, formation of metal oxide and multiply...
Random sample diet test: starter diets for coho salmon
H. G. Ketola, C. E. Smith, G. A. Kindschi
1987, Bozeman Information Leaflet 37
No abstract available at this time...
Applications of universal kriging to an aquifer study in New Jersey
A. A. Pucci Jr., J.A.E. Murashige
1987, Groundwater (25) 672-678
This article describes the use of kriging for optimizing data collection and utility in a regional ground-water investigation of the Potomac-Raritan-Magothy aquifer system in central New Jersey. Kriging was used to (1) estimate the altitude of an aquifer surface, (2) estimate hydraulic conductivities from point...
Residence times of channel-stored sediment in Redwood Creek, northwestern California
Mary Ann Madej
1987, Publication 165
No abstract available at this time...
Solute transport with equilibrium aqueous complexation and either sorption or ion exchange: Simulation methodology and applications
F.M. Lewis, Clifford I. Voss, J. Rubin
1987, Journal of Hydrology (90) 81-115
Methodologies that account for specific types of chemical reactions in the simulation of solute transport can be developed so they are compatible with solution algorithms employed in existing transport codes. This enables the simulation of reactive transport in complex multidimensional flow regimes, and provides a means for existing codes to...
