Improper use of regression equations in earth sciences
G. P. Williams
1983, Geology (11) 195-197
A regression equation used to estimate a variable is appropriately used only to estimate the dependent variable of that equation; the equation is inappropriately used when solved for an independent variable. Examples given here of this misuse of regression equations are based on...
Introduction; Seismology and earthquake engineering in Central and South America
A. F. Espinosa
1983, Earthquake Information Bulletin (USGS) (15) 4-6
Effective flow-through vacuum degasser for fish hatcheries
J. T. Fuss
1983, Aquacultural Engineering (2) 301-307
Since the fry of certain species of fish cannot tolerate even slight amounts of supersaturation, their water supplies must be degassed. Gas content can be reduced to subsaturated, sublethal levels by passing it through the vacuum degasser described here. The system includes a low-cost, flow-through unit easily capable of degassing...
Origins of rainbow smelt in Lake Ontario
Roger A. Bergstedt
1983, Journal of Great Lakes Research (9) 582-583
The first rainbow smelt (Osmerus mordax) to enter Lake Ontario were probably migrants from an anadromous strain introduced into New York's Finger Lakes. Since the upper Great Lakes were originally stocked with a landlocked strain from Green Lake, Maine, subsequent migration to Lake Ontario from Lake Erie makes Lake Ontario...
The white pelican (Pelicanus erythrorhynchos) as a host of Pelecanectes apunctatus (Acarina: Hypoderidae)
B.N. Tuggle
1983, Journal of Parasitology (69) 1083-1083
Several species of nymphs from the family Hypoderidae have been reported from pelecaniform birds (Cerny, 1969, Folia Parasit. (Praha) 16:271-274; Pence, 1972, J. Med. Ent. 9: 435-438; Pence and Courtney, 1973, J. Parasitol. 59: 711-718); however, there are no records from the white pelican, Pelecanus erythrorhynchos. I report here the...
The mobility and distribution of heavy metals during the formation of first cycle red beds
R. A. Zielinski, S. Bloch, T.R. Walker
1983, Economic Geology (78) 1574-1589
Holocene-Pliocene sequence sampled in northern Baja California. Geochemical data supported by petrographic, X-ray, and SEM observations of mineralogical transformations, fission-track radiography, and uranium decay series measurements. Results indicate that metal content of the studied samples is inherited from constituent detrital minerals and that reddening of whole-rock samples does not promote...
Research note: Isolation of a herpesvirus from a bald eagle nestling
D. E. Docherty, R.I. Romaine, R.L. Knight
1983, Avian Diseases (27) 1162-1165
Cloacal swabs collected from wild bald eagle nestlings (Haliaeetus leucocephalus) were tested for viruses. A virus isolated from one of these samples had a lipid coat and contained DNA. Electron microscopy confirmed that it was a herpesvirus. This appears to be the first report of a herpesvirus isolation from a...
Squamous cell carcinoma in a free-ranging white-tailed deer (Odocoileus virginianus)
R. K. Stroud, Terry E. Amundson
1983, Journal of Wildlife Diseases (19) 162-164
No abstract available....
Temporal patterns of seed use and availability in a guild of desert ants
Patricia Mehlhop, Norman J. Scott Jr.
1983, Ecological Entomology (8) 69-85
1Temporal patterns of seed use were studied from late winter to autumn in three species of seed-harvesting ants in the Sonoran Desert. Measures of effective foraging activity, dietary niche breadth and dietary niche overlaps were obtained each month and were tested for correlation with estimates of the...
Preliminary evaluation of Ivermectin for control of Psoroptes ovis in Desert Bighorn Sheep
H.G. Kinzer, W.P. Meleney, Robert E. Lange Jr., W.E. Houghton
1983, Journal of Wildlife Diseases (19) 52-54
No abstract available....
Tetrameres grusi (Nemotoda: Tetrameridae) from foster-raised whooping crane
B.N. Tuggle
1983, Proceedings of the Helminthological Society of Washington (50) 332-332
No abstract available....
Mammoth Lakes earthquakes and ground uplift; precursors to possible volcanic activity?
R. A. Bailey
1983, Earthquake Information Bulletin (USGS) (15) 88-101
Krakatau 1883
T. Simkin, R.S. Fiske
1983, Earthquake Information Bulletin (USGS) (15) 128-133
This year marks the 100th anniversary of the eruption of Krakatau, perhaps the most famous volcanic event in recorded history. During a 23-hour period on August 26 and 17, 1883, more than 4 cubic miles of volcanic debris exploded upward from Krakatau, resulting in the death of more than 36,000...
Hydrology of the Ferron Sandstone aquifer and effects of proposed surface-coal mining in Castle Valley, Utah, with a section on stratigraphy and a section on leaching of overburden
Gregory C. Lines, Daniel J. Morrissey, Thomas A. Ryer, Richard H. Fuller
1983, Water Supply Paper 2195
Coal in the Ferron Sandstone Member of the Mancos Shale of Cretaceous age has traditionally been mined by underground techniques in the Emery Coal Field in the southern end of Castle Valley in east-central Utah. However, approximately 99 million tons are recoverable by surface mining. Ground water in the Ferron...
Vapor phase exsolution as a controlling factor in hydrogen isotope variation in granitic rocks: the Notch Peak granitic stock, Utah
P.I. Nabelek, J. R. O’Neil, J. J. Papike
1983, Earth and Planetary Science Letters (66) 137-150
The Notch Peak granitic stock, western Utah, is comprised of three concentric sequentially intruded rock types, from granite at the rim, to quartz monzonite I, to quartz monzonite II at the core. The δ18O values of whole rocks vary about an...
Complexation of copper by aquatic humic substances from different environments
Diane M. McKnight, Gerald L. Feder, E. Michael Thurman, Robert L. Wershaw
1983, Science of the Total Environment (28) 65-76
The copper-complexing properties of aquatic humic substances isolated from eighteen different environments were characterized by potentiometric titration, using a cupric ion selective electrode. Potentiometric data were analyzed using FITEQL, a computer program for the determination of chemical equilibrium constants from experimental data. All the aquatic humic substances could be modelled...
Active submarine volcano sampled
B. Taylor
1983, Earthquake Information Bulletin (USGS) (15) 148-149
On June 4, 1982, two full dredge hauls of fresh lava were recovered from the upper flanks of Kavachi submarine volcano, Solomon Islands, in the western Pacific Ocean, from the water depths of 1,200 and 2,700 feet. the shallower dredge site was within 0.5 mile of the active submarine vent...
Research in seismology and earthquake engineering in Venezuela
L. Urbina, J. Grases
1983, Earthquake Information Bulletin (USGS) (15) 32-38
Venezuela has been affected by destructive earthquakes for the past four centuries. According to entries in the national seismic catalog, there have been about 180 earthquakes which have caused some type of damage to the country. The most catastrophic earthquake occurred on March 26, 1812, on the Bocono fault system...
Use of multispectral scanner images for assessment of hydrothermal alteration in the Marysvale, Utah, mining area.
M. H. Podwysocki, D. B. Segal, M. J. Abrams
1983, Economic Geology (78) 675-687
Airborne multispectral scanner. A color composite image was constructed using the following spectral band ratios: 1.6/2.2 mu m, 1.6/0.48 mu m, and 0.67/1.0 mu m. The color ratio composite successfully distinguished most types of altered rocks from unaltered rocks; further division of altered rocks into ferric oxide-rich and -poor types....
Process and rate of dedolomitization: Mass transfer and C14 dating in a regional carbonate aquifer
W. Back, B.B. Hanshaw, Niel Plummer, P.H. Rahn, C.T. Rightmire, M. Rubin
1983, Geological Society of America Bulletin (94) 1415-1429
Regional dedolomitization is the major process that controls the chemical character of water in the Mississippian Pahasapa Limestone (Madison equivalent) surrounding the Black Hills, South Dakota and Wyoming. The process of dedolomitization consists of dolomite dissolution and concurrent precipitation of calcite; it is...
Automated determination of bromide in waters by ion chromatography with an amperometric detector
G. S. Pyen, D. E. Erdmann
1983, Analytica Chimica Acta (149) 355-358
An automated ion chromatograph, including a program controller, an automatic sampler, an integrator, and an amperometric detector, was used to develop a procedure for the determination of bromide in rain water and many ground waters. Approximately 10 min is required to obtain a chromatogram. The detection limit for bromide is...
Use of reflectance spectra of native plant species for interpreting airborne multispectral scanner data in the East Tintic Mountains, Utah
N.M. Milton
1983, Economic Geology (78) 761-769
Representative spectra from three plant species were used to interpret the color components on a color ratio composite image. Most of the vegetation unit coincided with an altered rock unit, but many altered areas were not within the vegetation unit....
The isotopic and chemical evolution of Mount St. Helens
A. N. Halliday, A.E. Fallick, A.P. Dickin, A.B. Mackenzie, W.E. Stephens, W. Hildreth
1983, Earth and Planetary Science Letters (63) 241-256
Isotopic and major and trace element analysis of nine samples of eruptive products spanning the history of the Mt. St. Helens volcano suggest three different episodes; (1) 40,000–2500 years ago: eruptions of dacite with εNd = +5, εSr = −10, variable δ18O,206Pb/204Pb ∼ 18.76, Ca/Sr ∼...
Determination of elements in National Bureau of Standards' geological reference materials SRM 278 obsidian and SRM 688 basalt by inductively coupled argon plasma-atomic emission spectrometry
J.G. Crock, F.E. Lichte, Paul H. Briggs
1983, Geostandards Newsletter (7) 335-340
Two new geologic reference materials, issued by the National Bureau of Standards as standard reference materials, have been analyzed by a precise, accurate, and rapid method of analysis for their element content. The described procedure uses a multi‐acid, low temperature digestion in a closed teflon vessel, followed by the simultaneous...
Petrology and comparative thermal and mechanical histories of clasts in breccia 62236
Gordon L. Nord Jr., M.-V. Wandless
1983, Journal of Geophysical Research Solid Earth (88) A645-A657
Lunar breccia 62236 contains large lithic fragments of troctolite, norite, and anorthosite. The mafic phases, olivine, inverted pigeonite, and augite, fill interstitial areas between larger plagioclases and appear to be cumulate phases with extensive adcumulus growth. Pyroxene compositional homogeneity indicates that cation exchange during cooling was limited to an area...
