E. S. Fratto
1985, Earthquake Information Bulletin (USGS) (17) 165-172
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Page 4543, results 113551 - 113575
Publication Extents
Not all publications have extents, not all extents are completely accurateW. R. Griffitts, J. W. Whitlow, K.A. Duttweiler, D. F. Siems, L. O. Wilch
1985, Open-File Report 84-843-D
No abstract available....
J.R. Watterson
1985, Journal of Geochemical Exploration (23) 243-252
The presence of bacterial spores of the Bacillus cereus group in soils and stream sediments appears to be a sensitive indicator of several types of concealed mineral deposits, including vein-type gold deposits. The B. cereus assay is rapid, inexpensive, and inherently reproducible. The test, currently under investigation for its potential in mineral...
C. S. Cronan, G. R. Aiken
1985, Geochimica et Cosmochimica Acta (49) 1697-1705
Studies were conducted in conjunction with the Integrated Lake-Watershed Acidification Study (ILWAS) to examine the chemistry and leaching patterns of soluble humic substances in forested watersheds of the Adirondack region. During the summer growing season, mean dissolved organic carbon (DOC) concentrations in the ILWAS watersheds ranged from 21–32 mg C...
Lawrence M. Anovitz, A.H. Treiman, E.J. Essene, B. S. Hemingway, E.F. Westrum Jr., V.J. Wall, R. Burriel, S.R. Bohlen
1985, Geochimica et Cosmochimica Acta (49) 2027-2040
Low temperature adiabatic calorimetry and high temperature differential scanning calorimetry have been used to measure the heat-capacity of ilmenite (FeTiO3) from 5 to 1000 K. These measurements yield S2980 = 108.9 J/(mol · K). Calculations from published experimental data on the reduction of ilmenite yield Δ2980(I1) = −1153.9 kJ/(mol · K). These new data, combined with available experimental and...
J. Thomas Nash, David Frishman
Sibbald T.I.I.Petruk William, editor(s)
1985, Conference Paper, CIM Special Volume
The Ranger No. 1 and No. 3 orebodies contain about 124,000 tonnes U//3O//8 in highly chloritized metasediments of the lower Proterozoic Cahill Formation within about 500 m of the projected sub-Kombolgie Formation unconformity. In both orebodies, oxidized and reduced uranium minerals occur chiefly in quartzose schists that have highly variable...
C. Morrison, G. L. Hoffman, V. Sprague
1985, Canadian Journal of Zoology (63) 380-391
A microsporidan parasite, fitting the description of Nosema pimephales Fantham, Porter and Richardson, 1941, was found in fry of the fathead minnow, Pimephales promelas Rafinesque, from the Wray Fish Hatchery near Fort Morgan, Colorado. More detailed studies proved it to be a typical species of Glugea Thélohan, 1891, to which genus it was transferred. Presence of...
R.I. Tilling, R. A. Bailey
1985, Journal of Geodynamics (3) 425-446
Volcano monitoring and volcanic-hazards studies have received greatly increased attention in the United States in the past few years. Before 1980, the Volcanic Hazards Program was primarily focused on the active volcanoes of Kilauea and Mauna Loa, Hawaii, which have been monitored continuously since 1912 by the Hawaiian Volcano Observatory....
D. V. Rottiers, C. A. Lemm
1985, Progressive Fish-Culturist (47) 34-41
Underyearling walleyes, allowed to move freely in a Y‐shaped chamber into which various substances were added to one arm or another, were attracted to sodium chloride, sucrose, glutathione, vitamin B12, betaine, arginine, Daphnia slurries, some fish slurries, washings from live Daphnia and Artemia, and some commercial fish foods. They avoided...
J. W. Meade
1985, Progressive Fish-Culturist (47) 135-145
A review of the published literature on effects of ammonia on fish indicates that un‐ionized ammonia alone is probably not the cause of gill hyperplasia, indicative of, or previously attributed to, chronic ammonia poisoning. The maximum safe concentration of un‐ionized ammonia is unknown, but in many cases it is not...
M.H. Podwysoki, N. Falcone, L.U. Bender, O. D. Jones
Barker John L., editor(s)
1985, Conference Paper, NASA Conference Publication
This report describes results of some preliminary analyses of Landsat-4 Thematic Mapper data for the NASA Landsat Image Quality Analysis program. The work is being done under interagency agreement S-12407-C between the U. S. Geological Survey and NASA-Goddard Space Flight Center. Landsat-4 TM scenes for Washington, D. C. Macon, Georgia...
Eric Force, Tom Garnar
1985, Industrial Minerals
This paper described new evidence concerning the origin of the Trail Ridge mineral sands deposit in Florida. Rarely exposed sections of the orebody exhibit structures indicative of sand dune formation rather than coastal beach sand accumulation. The implications for mineral sands exploration, and therefore resources, in the southeastern USA are...
Robert A. Page, Peter W. Basham
1985, Ocean science and engineering (10) 195-352
This report discusses earthquake effects and potential hazards in the marine environment, describes and illustrates methods for the evaluation of earthquake hazards, and briefly reviews strategies for mitigating hazards. The report is broadly directed toward engineers, scientists, and others engaged in developing offshore resources. The continental shelves have become a...
R. A. Walters, R. T. Cheng, T. J. Conomos
1985, Hydrobiologia (129) 13-36
Conceptual models for tidal period and low-frequency variations in sea level, currents, and mixing processes in the northern and southern reaches of San Francisco Bay describe the contrasting characteristics and dissimilar processes and rates in these embayments: The northern reach is a partially mixed estuary whereas the southern reach...
Kenneth G. Stollenwerk, D.B. Grove
1985, Journal of Environmental Quality (14) 396-399
Reduction of hexavalent chromium, Cr(VI), in water samples, preserved by standard techniques, was investigated. The standard preservation technique for water samples that are to be analyzed for Cr(VI) consists of filtration through a 0.45‐µm membrane, acidification to a pH < 2, and storage in plastic bottles. Batch...
M.R. Karlinger, B.M. Troutman
1985, Journal of the International Association for Mathematical Geology (17) 287-295
Cascading regressions is a technique for predicting a value of a dependent variable when no paired measurements exist to perform a standard regression analysis. Biases in coefficients of a cascaded-regression line as well as error variance of points about the line are functions of the correlation coefficient between dependent and...
Ronald W. Harvey, Samuel N. Luoma
1985, Hydrobiologia (121) 97-102
Radioisotope labelling experiments with the estuarine clam, Macoma balthica, are described, in which a filter chamber device was used to separate solute metal uptake from uptake, of metals associated with suspended bacteria. Solute uptake contributed a majority of the 14-day total body burdens of 65Zn and 109Cd, whereas 57Co uptake...
E.L. Simons, T. M. Bown
1985, Nature (313) 475-477
Tarsiiform primates have long been regarded as a Laurasian group, with an extensive fossil record in the Eocene of North America and Europe1-4 and two important but less well-known records from Asia5,6. The only living genus is Tarsius (Tarsiidae), whereas all of the fossil tarsier-like primates are usually placed in...
D.J. Stierman, J. H. Healy
1985, Pure and Applied Geophysics PAGEOPH (122) 425-439
Weathered granite extends 70 m deep at Hi Vista in the arid central Mojave Desert of southern California. The low strength of this granite is due to the alteration of biotite and chlorite montmorillonite. Deep weathering probably occurs in most granites, although we cannot rule out some anomalous mechanisms at...
K.R. Ludwig, A. R. Wallace, K. R. Simmons
1985, Economic Geology (80) 1858-1871
U-Pb isotope analyses of ores from the Schwartzwalder uranium mine, Colorado, show that these ores have high amounts of initial (common) Pb and that the initial Pb was both variable and relatively radiogenic in its Pb isotope ratios ( 206 Pb/ 204 Pb = 26-30). As a result, the only useful approach to dating...
Marguerite J. Kingston, Cathy M. Ager
1985, Conference Paper, Technical Papers of the American Society of Photogrammetry, Annual Meeting
As part of the National Acid Precipitation Assessment Program (NAPAP), the U. S. Geological Survey is cooperating with other agencies to test the effects of acid deposition on building stone. A 10-year test-site study has been organized for the purpose of correlating possible stone deterioration with environmental factors. In Summer...
L. Marincovich Jr., E. M. Brouwers, L. D. Carter
1985, Geology (13) 770-773
Marine mollusks and ostracodes indicate a post-Danian Paleocene to early Eocene (Thanetian to Ypresian) age for a fauna from the Prince Creek Formation at Ocean Point, northern Alaska, that also contains genera characteristic of the Cretaceous and Neogene-Quaternary. The life-association of heterochronous taxa...
W.W. Wood
1985, Geology (13) 822-824
The enigma that caves and other solution openings form in carbonate rocks at great depths below land surface rather than forming from the surface downward can be explained by the generation of CO2 within the aquifer system. In the proposed model, CO2 is generated by the oxidation of particulate and/or...
E. Zen
1985, American Mineralogist (70) 65-73
The mineral assemblage biotite-garnet-muscovite-magnetite-quartz and its sub-sets are common in many peraluminous granites, schists and gneisses. If the biotite and garnet are reasonably iron-rich, then the system is a useful buffer for fO2. Available thermochemical data indicate that, in T-fO2 space, the buffer curve is located between the hematite-magnetite curve...
A. W. Ward, K.B. Doyle, P. J. Helm, M.K. Weisman, N.E. Witbeck
1985, Journal of Geophysical Research Solid Earth (90) 2038-2056
Ten basic categories of eolian features on Mars were identified from a survey of Mariner 9 and Viking orbiter images. The ten features mapped are (1) light streaks (including frost streaks), (2) dark streaks, (3) sand sheets or splotches, (4) barchari dunes, (5) transverse dunes, (6) crescentic dunes, (7) anomalous...