Evaluation of hatchery-reared lake trout for reestablishment of populations in the Apostle Islands Region of Lake Superior, 1960-84
Charles C. Krueger, Bruce L. Swanson, James H. Selgeby
R.H. Stroud, editor(s)
1986, Book chapter, Fish culture in fisheries management
No abstract available....
Influence of striped skunk removal on upland duck nest success in North Dakota
R. J. Greenwood
1986, Wildlife Society Bulletin (14) 6-11
Abstract has not been submitted...
Evaluation of waterfowl production at Union Slough National Wildlife Refuge
J. P. Fleskes
1986, Thesis
No abstract available at this time...
Geostatistical analysis of gas potential in Devonian shales of West Virginia
M.E. Hohn, D. W. Neal
1986, Computers & Geosciences (12) 611-617
The geologic processes that control the occurrence of gas in the Devonian shales of West Virginia are understood poorly. Locating a new Devonian shale well may depend upon proximity to known producing wells. Maps of initial potentials and probability of success can play an important role in exploration and development....
Limitations in the use of commercial humic acids in water and soil research
Ronald L. Malcolm, P. MacCarthy
1986, Environmental Science & Technology (20) 904-911
Seven samples of commercial "humic acids", purchased from five different suppliers, were studied, and their characteristics were compared with humic and fulvic acids isolated from streams, soils, peat, leonardite, and a dopplerite sample. Cross-polarization and magic-angle spinning 13C NMR spectroscopy clearly shows pronounced differences between the commercial materials and all...
Research in earthquake prediction - the Parkfield prediction experiment
Henry Spall
1986, Earthquakes & Volcanoes (USGS) (18) 148-148
The 15-mile-long Parkfield, California, section of the Sam Andreas fault is the best understood earthquake source region in the world. Moderate-sized earthquakes of local magnitude 5 3/4 occurred at Parkfield in 1881, 1901, 1922, 1934, and 1966....
Parkfield Earthquake looks to be on schedule
1986, Earthquakes & Volcanoes (USGS) (18) 149-150
The only formally endorsed prediction of an earthquake in the Unites States appears to be holding up well. The magnitude 5.6 Parkfield Earthquake, expected to strike a section of the San Andreas in sparsely populated central California in January 1988, give or take 5 years, would appear to be on...
A case study of soil gases as an exploration guide in glaciated terrain: Crandon massive sulfide deposit, Wisconsin
J. Howard McCarthy, R. N. Lambe, John A. Dietrich
1986, Economic Geology (81) 408-420
The Crandon massive sulfide deposit is covered by as much as 65 m of glacial drift. Soil gas was sampled at a depth of 0.5 m along several traverses over the deposit. Gases showing anomalies that correlate with the underlying deposit include CO 2 , CH 4 , and O 2 . CO 2 and CH 4 show positive anomalies...
Shuttle imaging radar: Physical controls on signal penetration and subsurface scattenng in the Eastern Sahara
Gerald G. Schaber, John F. McCauley, Carol S. Breed, Gary R. Olhoeft
1986, IEEE Transactions on Geoscience and Remote Sensing (GE-24) 603-623
SIR-A signal penetration and subsurface backscatter within the upper meter or so of the sediment blanket in the Eastern Sahara of southern Egypt and northern Sudan are enhanced both by radar sensor parameters and by the physical and chemical characteristics of eolian and alluvial materials. Interpretation of SIR-A images by...
Simulation of fluid flow and energy transport processes associated with high-level radioactive waste disposal in unsaturated alluvium
David W. Pollock
1986, Water Resources Research (22) 765-775
Many parts of the Great Basin have thick zones of unsaturated alluvium which might be suitable for disposing of high-level radioactive wastes. A mathematical model accounting for the coupled transport of energy, water (vapor and liquid), and dry air was used to analyze one-dimensional, vertical transport above and below an...
Snow chemistry of the Cascade-Sierra Nevada Mountains
L.B. Laird, Howard E. Taylor, V. C. Kennedy
1986, Environmental Science & Technology (20) 275-290
This investigation assesses geographic variations in atmospheric deposition in Washington, Oregon, and California using snow cores from the Cascade-Sierra Nevada Mountains, collected from late February to mid-March 1983. A statistical analysis of the analytical and sampling precision was made. The snowpack in the higher Cascades and Sierra Nevada is not...
URBAN STORMWATER-QUALITY INVESTIGATIONS BY THE USGS.
Marshall E. Jennings, Timothy L. Miller
Urbonas BenRoesner Larry A., editor(s)
1986, Conference Paper
U. S. Geological Survey (USGS) urban stormwater investigations, in cooperation with local and Federal agencies, have produced significant national data bases of information and enhanced understanding of urban hydrologic processes. Studies in progress include statistical regionalization of urban stormwater quality, the effects of stormwater detention on water quality, ways of...
Summary geochemical maps for samples of rock, stream sediment, and nonmagnetic heavy-mineral concentrates, Carson-Iceberg and Leavitt Lake Roadless Areas, Alpine, Mono, and Tuolumne counties, California
M.A. Chaffee
1986, Miscellaneous Field Studies Map 1416-C
The Carson-Iceberg and Leavitt Lake Roadless Areas (the study area) lie near the crest of the Sierra Nevada in central California. The study area encompasses approximately 219,630 acres in the Stanislaus and Toiyabe National Forests in Alpine, Mono, and Tuolumne Counties. The area is dominated by rugged topography typical of...
Effects of urbanization on streamflow, sediment loads, and channel morphology in Pheasant Branch basin near Middleton, Wisconsin
W.R. Krug, G. L. Goddard
1986, Water-Resources Investigations Report 85-4068
A 5-year, data-collection and modeling study was conducted on Pheasant Branch basin in and near Middleton, Wisconsin. The objectives of the study were to: (1) describe the streamflow characteristics, sediment transport, and stream-channel morphology in the Pheasant Branch basin; and (2) relate the above factors to changes caused by urbanization...
Seed predation by yucca moths on semelparous, iteroparous and vegetatively reproducing subspecies of Yucca whipplei (Agavaceae)
Jon E. Keeley, Sterling C. Keeley, D. A. Ikeda
1986, American Midland Naturalist (115) 1-9
Yucca whipplei subspecies are distinguished by differences in reproduction: spp. whipplei and ssp. parishii are semelparous, flowering once and dying; ssp. caespitosa is iteroparous, producing multiple rosettes which may flower in different years; ssp. percursa has clonal reproduction from rhizomes, and ssp. intermedia is intermediate to the latter two. Seed...
Selective chemical dissolution of sulfides: An evaluation of six methods applicable to assaying sulfide-bound nickel
P.R. Klock, G.K. Czamanske, M. Foose, J. Pesek
1986, Chemical Geology (54) 157-162
Six analytical techniques for the selective chemical dissolution of sulfides are compared with the purpose of defining the best method for accurately determining the concentration of sulfide-bound nickel. Synthesized sulfide phases of known elemental content, mixed with well-analyzed silicates, were used to determine the relative and absolute efficiency, based on...
A coefficient of agreement as a measure of thematic classification accuracy.
G.H. Rosenfield, K. Fitzpatrick-Lins
1986, Photogrammetric Engineering and Remote Sensing (52) 223-227
The classification error matrix typically contains tabulated results of accuracy evaluation for a thematic classification, such as a land-use and land-cover map. Diagonal elements of the matrix represent counts correct. The usual designation of classification accuracy has been total percent correct. Nondiagonal elements of the matrix have usually been neglected....
Nature of phases synthesized along the join (Mg,Mn)2Si2O6.
J.S. Huebner
1986, American Mineralogist (71) 111-122
Eight compositions were synthesized along this join. Orthopyroxene crystallized at X = Mn/(Mn + Mg) = 0.0-0.3, clinopyroxene at X 0.4-0.5, and pyroxmangite at X 0.65-1.0, consistent with the composition ranges that have been inferred by examination of metamorphic rock assemblages. Unit-cell dimensions for these phases and for rhodonite (X...
Upper mantle structure from teleseismic P wave arrivals in Washington and northern Oregon
C. A. Michaelson, C.S. Weaver
1986, Journal of Geophysical Research Solid Earth (91) 2077-2094
Teleseismic P wave travel time residuals are used to detect lateral velocity heterogeneities in the upper mantle beneath Washington and northern Oregon. The results of an inversion for three-dimensional velocity variations resolves an east dipping high-velocity zone that we interpret as the subducting Juan de Fuca plate. The plate is characterized by...
Europa: Characterization and interpretation of global spectral surface units
M. L. Nelson, T. B. McCord, Roger N. Clark, T. V. Johnson, D. L. Matson, J. A. Mosher, Laurence A. Soderblom
1986, Icarus (65) 129-151
The Voyager global multispectral mosaic of the Galilean satellite Europa (T. V. Johnson, L. A. Soderblom, J. A. Mosher, G. E. Danielson, A. F. Cook, and P. Kupferman, 1983, J. Geophys. Res. 88, 5789–5805) was analyzed to map surface units with similar optical properties (T. B. McCord, M. L. Nelson, R. N. Clark,...
LONG-TERM EARTHQUAKE PREPAREDNESS IN CHARLESTON, SOUTH CAROLINA.
P. L. Gori, M.R. Greene
1986, Conference Paper
The Charleston, South Carolina, area offers a unique opportunity to conduct studies that give insight into the implementation of policy for long-term earthquake preparedness at the local level. Research by Greene and Gori documented the low state of preparedness in 1981. Recent studies show that earthquake preparedness activities are now...
The occurrence of Theromyzon rude (Annelida: Hirudinea) in association with mortality of trumpeter swan cygnets (Cygnus buccinator)
Benjamin N. Tuggle
1986, Journal of Wildlife Diseases (22) 279-280
No abstract available....
Finite-difference grid for a doublet well in an anisotropic aquifer
R. T. Miller, C.I. Voss
1986, Ground Water (24) 490-496
The U.S. Geological Survey is modeling hydraulic flow and thermal-energy transport at a two-well injection/ withdrawal system in St. Paul, Minnesota. The design of the finite-difference model grid for the doublet-well system is complicated because the aquifer is anisotropic and the principal axes of transmissivity are not aligned with the...
Phase relations in the CuVS system
D. Wu, L.L.Y. Chang, C.R. Knowles
1986, Journal of the Less-Common Metals (115) 243-251
Phase relations in the system Cu-V-S were studied by using a sealedcapsule technique, reflected-light microscopy, X-ray powder diffraction and electron microprobe analysis. In the temperature range between 300 and 900 ??C, six vanadium sulfides exist in the V-S system. These are VS, V7S8, V3S4, V5S8, V3S5 and VS4. In the...
Archaeological prospection: An introduction to the Special Issue
Jeffrey C. Wynn
1986, Geophysics (51) 533-537
Archaeological prospection, as the use of geophysical methods in archaeology is known in Europe, is about four decades old (seven decades, if aerial photography of archaeological sites is included). Virtually the entire range of geophysical methods, perhaps excluding only borehole techniques, has found application in the search for archaeological sites...
