CLASSIFICATION AND BEHAVIOR OF MEANDER MIGRATION.
Edward H. Martin, Hsieh W. Shen, J. Glover
1986, Conference Paper
Meander migrations on the Mississippi River between Cairo, Illinois and Baton Rouge, Louisiana for the time period between the years 1765 and 1930 were classified into six categories based on the nature of channel movements. During the time period between 1765 and 1900, man's disturbance on this river reach was...
Determination of selected azaarenes in water by bonded-phase extraction and liquid chromatography
T.R. Steinheimer, M.G. Ondrus
1986, Analytical Chemistry (58) 1839-1844
A method for the rapid and simple quantitative determination of quinoline, isoquinoline, and five selected three-ring azaarenes in water has been developed. The azaarene fraction is separated from its carbon analogues on n-octadecyl packing material by edition with acidified water/acetonitrile. Concentration as great as 1000-fold is achieved readily. Instrumental analysis...
Rb-Sr, K-Ar, and stable isotope evidence for the ages and sources of fluid components of gold-bearing quartz veins in the northern Sierra Nevada foothills metamorphic belt, California
J.K. Bohlke, R. W. Kistler
1986, Economic Geology (81) 296-322
Gold-bearing quartz veins occur in and near major fault zones in deformed oceanic and island-arc rocks west of the main outcrop of the Sierra Nevada composite batholith. Veins typically occupy minor reverse faults that crosscut blueschist to amphibolite-grade metamorphic rocks whose metamorphic ages range from early Paleozoic to Jurassic. Vein...
SULFUR CONTENT OF THE COAL RESOURCES OF THE UNITED STATES: CURRENT STATUS.
C. B. Cecil, F.T. Dulong
1986, Conference Paper, Preprint - Society of Mining Engineers of AIME
The sulfur content of United States coal can be assessed using a variety of approaches. The sulfur content may be expressed in terms of total sulfur in the coal, pounds of sulfur per million Btu, or sulfur remaining after reduction by coal preparation. In addition, sulfur content may be applied...
Planning for optical disk technology with digital cartography.
D.L. Light
1986, Photogrammetric Engineering and Remote Sensing (52) 551-557
A major shortfall that still exists in digital systems is the need for very large mass storage capacity. The decade of the 1980s has introduced laser optical disk storage technology, which may be the breakthrough needed for mass storage. This paper addresses system concepts for digital cartography during the transition...
Use of dust storm observations on satellite images to identify areas vulnerable to severe wind erosion
C. S. Breed, J.F. McCauley
1986, Climatic Change (9) 243-258
Blowing dust is symptomatic of severe wind erosion and deterioration of soils in areas undergoing dessication and/or devegetation. Dust plumes on satellite images can commonly be traced to sources in marginally arable semiarid areas where protective lag gravels or vegetation have been removed and soils are dry, as demonstrated for...
Mineralogical studies of the nitrate deposits of Chile. V. Iquiqueite, Na4K3Mg(CrO4)B24O39(OH).12H2O, a new saline mineral.
G. E. Ericksen, M.E. Mrose, J.W. Marinenko, J. J. McGee
1986, American Mineralogist (71) 830-836
Iquiqueite (Na4K3Mg(CrO4)B24O39(OH).12H2O, a 11.6369(14), c 30.158(7) A, P31c, Z = 3) occurs as a widespread minor constituent in the nitrate fields of northern Chile. It is particularly abundant in the vicinity of Zapiga, Tarapaca province. Associated minerals include nitratite, halite, nitre, darapskite, blodite, glauberite, dietzeite, bruggenite, ulexite and gypsum. Iquiqueite...
Deformation of poorly consolidated sediment during shallow emplacement of a basalt sill, Coso Range, California
W. A. Duffield, C. R. Bacon, P.T. Delaney
1986, Bulletin of Volcanology (48) 97-107
A 150-m-long, wedge-shaped unit of folded and faulted marly siltstone crops out between undeformed sedimentary rocks on the north flank of the Coso Range, California. The several-meter-thick blunt end of this wedge abuts the north margin of a basaltic sill of comparable thickness. Chaotically deformed siltstone crops out locally at...
Tissue distribution and elimination of radiolabelled methyltestosterone fed to adult blue tilapia
C. A. Goudie, W. L. Shelton, N. C. Parker
1986, Aquaculture (58) 227-240
Radioactivity levels in 10 tissues were monitored for 21 days after adult (1-year-old) blue tilapia, Oreochromis aureus, were fed a single meal of a diet containing 30 μg unlabelled methyltestosterone (MT) per gram of feed and radiolabelled MT (3H-labelled steroid nucleus and 14C-labelled...
Immunoblot assay: a rapid and sensitive method for identification of salmonid fish viruses
P. E. McAllister, W. B. Schill
1986, Journal of Wildlife Diseases (22) 468-474
An immunoblot assay was used to identify the viruses of infectious pancreatic necrosis, infectious hematopoietic necrosis, and viral hemorrhagic septicemia. Viral antigen in infected cell culture supernatant was adsorbed onto nitrocellulose membrane or Whatman 541 filter paper and detected by enzyme-linked immunosorbent assay...
Selenium and heavy metals in San Francisco Bay diving ducks
Harry M. Ohlendorf, Roy W. Lowe, Paul R. Kelly, Thomas E. Harvey
1986, Journal of Wildlife Management (50) 64-70
We analyzed for selenium (Se) and heavy metals in greater scaups (Aythya marila) and surf scoters (Melanitta perspicillata) collected from southern San Francisco Bay in March and April 1982. There were no differences (P > 0.05) between species for liver concentrations of silver (Ag), mercury (Hg), or lead (Pb). Copper...
Pb-, Sr- and Nd-Isotopic systematics and chemical characteristics of cenozoic basalts, Eastern China
Z. C. Peng, R. E. Zartman, K. Futa, D.G. Chen
1986, Chemical Geology (59) 3-33
Forty-eight Paleogene, Neogene and Quaternary basaltic rocks from northeastern and east-central China have been analyzed for major-element composition, selected trace-element contents, and Pb, Sr and Nd isotopic systematics. The study area lies entirely within the marginal Pacific tectonic domain. Proceeding east to...
Review of the intensive culture of walleye fry
W. F. Krise, J. W. Meade
1986, Progressive Fish-Culturist (48) 81-89
Efficient intensive culture of larval walleyes (Stizostedion vitreum) may soon be realized due to results of research on larval development, culture environment, preferred food organisms, and feeding techniques. Larval behavior and morphology (developmental state) can be used as indicators for appropriate handling and feeding techniques. Certain environmental conditions such as...
Strategies for reducing risks from introductions of aquatic organisms: The federal perspective
James P. Clugston
1986, Fisheries (11) 26-29
The Lacey Act of 1900 and subsequent amendments have provided the basis for existing federal regulations on species introductions. The 1981 version repealed the Black Bass Act and corrected certain insufficiencies in the original Lacey and Black Bass Acts. A 1977 executive order instructs federal agencies, to the extent permitted...
Diet related anemia in channel catfish: Case history and laboratory induction
G. T. Klar, L. A. Hanson, S. W. Brown
1986, Progressive Fish-Culturist (48) 60-64
Severe anemia among fingerling to adult channel catfish (Ictalurus punctatus) and blue catfish (Ictalurus furcatus) was reported by 39 of 166 catfish farmers in west‐central Alabama in 1983. The hematocrits of moribund fish in ponds ranged from 0 to 5%. Weekly mortalities as high as 5% in individual ponds were...
Tissue distribution and elimination of radiolabelled methyltestosterone fed to sexually undifferentiated blue tilapia
C. A. Goudie, W. L. Shelton, N. C. Parker
1986, Aquaculture (58) 215-226
Populations of monosex male Oreochromis aureus can result when the synthetic androgen 17α-methyltestosterone (MT) is fed to sexually undifferentiated fish; however, concerns exist over residues of the androgen remaining in fish destined for human consumption. Radioactivity in the carcass and viscera was evaluated in juvenile fish fed steroid-incorporated diet (tritium and carbon-14...
PERSPECTIVE ON LANDSLIDE DAMS.
Robert L. Schuster, John E. Costa
Schuster Robert L., editor(s)
1986, Conference Paper
The most common types of mass movements that form landslide dams are rock and soil slumps and slides; mud, debris, and earth flows: and rock and debris avalanches. The most common initiation mechanisms for dam-forming landslides are excessive rainfall and snow melt, and earthquakes. Most landslide dams are remarkable short-lived....
Isotope geochemistry of recent magmatism in the Aegean arc: Sr, Nd, Hf, and O isotopic ratios in the lavas of Milos and Santorini-geodynamic implications
L. Briqueu, M. Javoy, J.R. Lancelot, M. Tatsumoto
1986, Earth and Planetary Science Letters (80) 41-54
In this comparative study of variations in the isotopic compositions (Sr, Nd, O and Hf) of the calc-alkaline magmas of the largest two volcanoes, Milos and Santorini, of the Aegean arc (eastern Mediterranean) we demonstrate the complexity of the processes governing the evolution of the magmas on the scale both...
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...
Quantitative estimation of undiscovered mineral resources: A case study of US Forest Service Wilderness tracts in the Pacific Mountain system
L.J. Drew, J. D. Bliss, R. W. Bowen, N.J. Bridges, Dennis P. Cox, J. H. DeYoung, J.C. Houghton, Steven D. Ludington, W. D. Menzie, Norman J. Page, D. H. Root, Donald A. Singer
1986, Economic Geology (81) 80-88
The need by land managers and planners for more quantitative measures of mineral values has prompted scientists at the U.S. Geological Survey to test a probabilistic method of mineral resource assessment on a portion of the wilderness lands that have been studied by the Survey during the past 20 years....
RAINFALL-LOSS PARAMETER ESTIMATION FOR ILLINOIS.
Linda S. Weiss, Audrey L. Ishii
1986, Conference Paper
The U. S. Geological Survey is currently conducting an investigation to estimate values of parameters for two rainfall-loss computation methods used in a commonly used flood-hydrograph model. Estimates of six rainfall-loss parameters are required: four for the Exponential Loss-Rate method and two for the Initial and Uniform Loss-Rate method. Multiple...
Water resources of Clallam County, Washington: Phase I report
B. W. Drost
1986, Water-Resources Investigations Report 83-4227
An inventory of the water resources of Clallam County, Washington, showed that sufficient water is available to supply all present demands. Domestic water supplies can be obtained from wells drilled 100 ft or less into glacial and alluvial deposits; in areas underlain by bedrock, wells more than 100 ft deep...
RELATION BETWEEN SURFACE-WATER QUALITY AND THE COMPOSITION OF COAL IN PIKE COUNTY, KENTUCKY.
Jay Kiesler
1986, Conference Paper, University of Kentucky, Office of Engineering Services, (Bulletin) UKY BU
The quality of surface water in Pike County, Kentucky, seems to reflect the composition of coals in the county. Groundwater acquires mineral concentration characteristics of the rocks through which it moves. When groundwater is discharged to streams the mineral concentrations in streams, especially during low flow periods, are characteristic of...
Earthquakes, January-February 1986
W. J. Person
1986, Earthquakes & Volcanoes (USGS) (18) 235-237
The first two months of the year were somewhat quiet seismically speaking. There were no major earthquakes (7.0-7.9) but one death was caused by an earthquake in Peru. In the United States a magntidue 4.9 earthquake in Ohio on January 31 caused some minor injuries and was felt in eleven states,...
SALTWATER INTRUSION IN A HIGHLY TRANSMISSIVE UNCONFINED AQUIFER.
Bradley G. Waller
1986, Conference Paper
Saltwater intrusion is particularly dynamic in coastal Dade County because of the high permeability of the Biscayne aquifer, because of the good interconnection between canals and the aquifer, and because of the seasonal rainfall. The problem is accentuated as urban growth continues to encroach on inland wetland areas which results...
