Implications of paleomagnetism for the tectonic history of the Eastern Klamath and related terranes in California and Oregon
Edward A. Mankinen, William P. Irwin, C. Sherman Gromme
T. H. Nilsen, editor(s)
1984, Pacific Section S.E.P.M. (42) 221-229
Paleomagnetic study of Permian to Jurassic volcanic and sedimentary strata of the Eastern Klamath terrane has shown the remanent magnetism of these rocks to be prefolding and primary. The Permian and Triassic rocks are both indicated to have rotated 100° clockwise, while the Jurassic strata have rotated 60° clockwise. The...
Geomagnetic paleointensities from excursion sequences in lavas on Oahu, Hawaii
Robert S. Coe, Sherman Gromme, Edward A. Mankinen
1984, Journal of Geophysical Research B: Solid Earth (89) 1059-1069
Paleomagnetic data demonstrating three late Tertiary excursions in the direction of the geomagnetic field recorded in sequences of basaltic lavas on the island of Oahu, Hawaii were published by R. R. Doell and G. B. Dalrymple in 1973. We have determined geomagnetic paleointensities by the Thelliers' method for 14 lavas...
The Jeanie Point complex revisited
Julie A. Dumoulin, Marti L. Miller
1984, Circular 868
The so-called Jeanie Point complex is a distinctive package of rocks within the Orca Group, a Tertiary turbidite sequence. The rocks crop out on the southeast coast of Montague Island, Prince William Sound, approximately 3 km northeast of Jeanie Point (loc. 7, fig. 44). These rocks consist dominantly of fine-grained...
Proton and metal ion binding to natural organic polyelectrolytes—I. Studies with synthetic model compounds
J.A. Marinsky, M.M. Reddy
1984, Organic Geochemistry (7) 207-214
A unified physico-chemical model, based on a modified Henderson-Hasselbalch equation, for the analysis of ion complexation reactions involving charged polymeric systems is presented and verified. In this model pH = pKa+p(ΔKa) + log(α/1 − α) where Ka is the intrinsic acid dissociation constant of the ionizable functional groups on the polymer, ΔKa is the deviation...
Speculations on the petroleum geology of the accretionary body: an example from the central Aleutians
J. McCarthy, A.J. Stevenson, D.W. Scholl, T.L. Vallier
1984, Marine and Petroleum Geology (1) 151-167
In the 300 km wide Adak-Amlia sector of the central Aleutian Trench ??? 36 000 km3 of offscraped trench fill makes up the wedge-shaped mass of the Aleutian accretionary body. Within this wedge, seismic reflection profiles reveal an abundance of potential hydrocarbon-trapping structures. These structures include antiforms, thrust and normal...
SHUTTLE IMAGING RADAR PROVIDES FRAMEWORK FOR SUBSURFACE GEOLOGIC EXPLORATION IN EGYPT AND SUDAN.
Carol S. Breed, John F. McCauley, Gerald G. Schaber
1984, Conference Paper
Shuttle Imaging Radar provides a pictorial framework to guide exploration for mineral resources (potential placers), groundwater sources, and prehistoric archaeological sites in the Western Desert of Egypt and Sudan. Documented penetration by the SIR-A signal of dry surficial sediment to depths of a meter or more revealed bedrock geologic features...
Crater lake and post-eruption hydrothermal activity, El Chichón Volcano, Mexico
Thomas J. Casadevall, Servando De la Cruz-Reyna, William I. Rose Jr., Susan Bagley, David L. Finnegan, William H. Zoller
1984, Journal of Volcanology and Geothermal Research (23) 169-175
Explosive eruptions of Volcán El Chichón in Chiapas, Mexico on March 28 and April 3–4, 1982 removed 0.2 km3 of rock to form a 1-km-wide 300-m-deep summit crater. By late April 1982 a lake had begun to form on the crater floor, and by November 1982 it attained a maximum surface...
Heating rates in furnace atomic absorption using the L'vov platform
S. R. Koirtyohann, R.C. Giddings, Howard E. Taylor
1984, Spectrochimica Acta Part B: Atomic Spectroscopy (39) 407-413
Heating rate profiles for the furnace tube wall, the furnace atmosphere, and a L'vov platform were established for a range of conditions in a cyclically heated graphite atomizer. The tube wall profile was made by direct observation with a recording optical pyrometer. The...
An improved Beenakker-type cavity for microwave induced plasma spectrometry
N. Rait, D. W. Golightly, C. J. Massoni
1984, Spectrochimica Acta Part B: Atomic Spectroscopy (39) 931-937
No abstract available....
Graphite sample preparation for AMS in a high pressure and temperature press
M. Rubin, B.O. Mysen, H. Polach
1984, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms (5) 272-273
A high pressure-high temperature press is used to make target material for accelerator mass spectrometry. Graphite was produced from typical 14C samples including oxalic acid and carbonates. Beam strength of 12C was generally adequate, but random radioactive contamination by 14C made age measurements impractical. ?? 1984....
The occurrence and behavior of radium in saline formation water of the U.S. Gulf Coast region
T. F. Kraemer, D.F. Reid
1984, Chemical Geology (46) 153-174
Radium has been measured in deep saline formation waters produced from a variety of U.S. Gulf Coast subsurface environments, including oil reservoirs, gas reservoirs and water-producing geopressured aquifers. A strong positive correlation has been found between formation-water salinity and Ra activity, resulting from the interaction of formation water with aquifer...
The occurance of Pterygodermatites nycticebi (Nematoda: Rictulariidae) in a captive slow loris, Nycticebus coucang
B.N. Tuggle, B.A. Beehler
1984, Proceedings of the Helminthological Society of Washington (51) 162-163
Adult and immature rictulariid nematodes were recovered at necropsy from the small intestine of an adult slow loris, Nycticebus coucang, from the Milwaukee County Zoo in Wisconsin. The lumen of the entire small intestine was packed with more than 100 nematodes, the intestinal wall appeared thickened and the mucosal surface...
Radioisotope dilution analyses of geological samples using 236U and 229Th
J.N. Rosholt
1984, Nuclear Instruments and Methods In Physics Research (223) 572-576
The use of 236U and 229Th in alpha spectrometric measurements has some advantages over the use of other tracers and measurement techniques in isotope dilution analyses of most geological samples. The advantages are: (1) these isotopes do not occur in terrestrial rocks, (2) they have negligible decay losses because of...
Lead poisoning of sandhill cranes (Grus canadensis)
R. M. Windingstad, S.M. Kerr, L. N. Locke, J. J. Hurt
1984, Prairie Naturalist (16) 21-24
Two wild and two captive sandhill cranes (Grus canadensis) were diagnosed by National Wildlife Health Laboratory personnel as having died from lead toxicity. Ingestion of lead fishing weights by the wild cranes and of unspent .22 caliber shell cartridges by the captive cranes were responsible for these deaths. One crane...
Archaeological sedimentology of overbank silt deposits on the floodplain of the Ohio River near Louisville, Kentucky
H.H. Gray
1984, Journal of Archaeological Science (11) 421-432
The surface of the floodplain of the Ohio River about 20km southwest of Louisville, Kentucky, is a series of linear ridges and swales that are subparallel to the channel of the river, which here is relatively straight and flows southward. Numerous prehistoric occupational sites are located on these ridges. The...
Peralkaline ash flow tuffs and calderas of the McDermitt Volcanic Field, southeast Oregon and north central Nevada
J. J. Rytuba, E.H. McKee
1984, Journal of Geophysical Research Solid Earth (89) 8616-8628
The McDermitt volcanic field covers an area of 20,000 km2 in southeastern Oregon and northwestern Nevada and consists of seven large-volume ash flow sheets that vented from 16.1 to 15 Ma ago. The volcanic field is characterized by peralkaline, high-silica rhyolite, and all but one of the sheets are comendites. The...
Renal coccidiosis in interior Canada geese, Branta canadensis interior Todd, of the Mississippi Valley population
Benjamin N. Tuggle, John L. Crites
1984, Journal of Wildlife Diseases (20) 272-278
Kidneys from 309 Interior Canada geese from three locations in the Mississippi Flyway were examined for renal coccidia. Oocysts and/or young zygotes of Eimeria sp. were found in 6.8% of goose kidneys sampled. Only one type of renal coccidian oocyst was observed. Significantly more immature...
The isotope systematics of a juvenile intraplate volcano: Pb, Nd, and Sr isotope ratios of basalts from Loihi Seamount, Hawaii
H. Staudigel, A. Zindler, S.R. Hart, T. Leslie, C.-Y. Chen, D. Clague
1984, Earth and Planetary Science Letters (69) 13-29
Sr, Nd, and Pb isotope ratios for a representative suite of 15 basanites, alkali basalts, transitional basalts and tholeiites from Loihi Seamount, Hawaii, display unusually large variations for a single volcano, but lie within known ranges for Hawaiian basalts. Nd isotope...
ASSESSMENT OF CHANNEL STABILITY AT BRIDGE SITES.
James C. Brice
Kassabian NaomiHerman ScottKaplan Elizabeth W.Starkey Jane, editor(s)
1984, Conference Paper, Transportation Research Record
Assessment of channel stability from field study and the comparison of time-sequential aerial photographs provides information that is needed in site selection, bridge design, and countermeasure placement. Channel instability is indicated by bank erosion, progressive degradation (or aggradation) of the streambed, or natural scour and fill of the streambed. Bank...
Relationship between quantity and quality of storm runoff and various watershed characteristics in Minnesota, USA
Rob G. Brown
1984, Conference Paper
Watersheds are rural areas undergoing urbanization with current urban land use comprising 4 to 58 percent of the watershed area. The quantity and quality of storm runoff in the watersheds was tested for correlations (significance level of 0. 05) with various land-surface features and landuse characteristics. Quantity of storm runoff...
Sources of nitrate in ground water in a sewered housing development, Central Long Island, New York
W.J. Flipse Jr., B. G. Katz, J.B. Lindner, R. Markel
1984, Groundwater (22) 418-426
Nitrate concentrations in ground water on Long Island, New York, have increased markedly in the last 30 years. A significant amount of this increase has been attributed to lawn and garden fertilizers in addition to cesspool and septic-tank discharges. The increase in nitrate concentration is...
Observations on burrowing rates and comments on host specificity in the endangered mussel Lampsilis higginsi
J.R. Sylvester, L. E. Holland, T.K. Kamer
1984, Journal of Freshwater Ecology (2) 555-559
In preliminary laboratory studies, the endangered mussel Lampsitis higginsi was unable to burrow into rocky substrates, but did burrow into substrates comprised of silt, clay, sand, and/or pebble-gravel. Burrowing times were shortest in silt and longest in pebble-gravel. As judged by longevity of glochidial infection, walleye (Stizostedion vitreum) and largemouth...
Chemical determination of particulate nitrogen in San Francisco Bay. A comparison of two estimates
S.W. Hager, D.D. Harmon
1984, Estuarine, Coastal and Shelf Science (19) 181-191
Particulate nitrogen was measured by both the ultra-violet light-catalyzed peroxide method and the high temperature combustion method. The difference between values obtained with the two methods (combustion minus UV) was found to be linearly correlated with the concentration of total suspended particulate matter (SPM) in the sample. The slope of...
Evaluation of metal ion absorptive characteristics of three types of plastic sample bags used for pecipitation sampling
A.B. Good, L.J. Schroder
1984, Journal of Environmental Science and Health - Part A Environmental Science and Engineering (19) 631-640
Simulated precipitation samples containing 16 metal ions were prepared at 4 pH values. Absorptive characteristics of polypropylene, polyethylene, and polyester/polyolefin sacks were evaluated at pH 3.5, 4.0, 4.5, and 5.0. Simulated precipitation was in contact with the sacks for 17 days, and subsamples were removed for chemical analysis at 3,...
Movement of tractive sediment from disturbed lands
W. R. Osterkamp, W. P. Carey, C.R. Hupp, B.A. Bryan
Schreiber David L., editor(s)
1984, Conference Paper
The Smoky Creek basin of the coal area of northeastern Tennessee shows extensive evidence of tractive movement of coarse sediment from mined tributary basins into the main channel. Coal-rich gravel bars and flood-plain debris are common below tributaries. Using a combination of techniques including channel-geometry and bar measurements, sediment sampling...
