Palaeotectonic implications of increased late Eocene-early Oligocene volcanism from South Pacific DSDP sites
J.P. Kennett, C. Von Der Borch, P.A. Baker, C.E. Barton, A. Boersma, J.P. Cauler, W.C. Dudley Jr., J.V. Gardner, D.G. Jenkins, W.H. Lohman, E. Martini, R. B. Merrill, R. Morin, Campbell S. Nelson, C. Robert, M.S. Srinivasan, R. Stein, A. Takeuchi, M.G. Murphy
1985, Nature (316) 507-511
Late Eocene-early Oligocene (42-35 Myr) sediments cored at two DSDP sites in the south-west Pacific contain evidence of a pronounced increase in local volcanic activity, particularly in close association with the Eocene-Oligocene boundary. This pulse of volcanism is coeval with that in New Zealand and resulted from the development of...
Strontium and oxygen isotopic variations in Mesozoic and Tertiary plutons of central Idaho
R.J. Fleck, R.E. Criss
1985, Contributions to Mineralogy and Petrology (90) 291-308
Regional variations in initial 87Sr/86Sr ratios (ri) of Mesozoic plutons in central Idaho locate the edge of Precambrian continental crust at the boundary between the late Paleozoic-Mesozoic accreted terranes and Precambrian sialic crust in western Idaho. The ri values increase abruptly but continuously from less than 0.704 in the accreted...
Recovery of dichlorobenzenes, nitrobenzene, and naphthalene during evaporative concentration
E.W. Matthews
1985, Analytical Chemistry (57) 1494-1496
[No abstract available]...
Time scales and mechanisms of estuarine variability, a synthesis from studies of San Francisco Bay
J. E. Cloern, F.H. Nichols
1985, Hydrobiologia (129) 229-237
This review of the preceding papers suggests that temporal variability in San Francisco Bay can be characterized by four time scales (hours, days-weeks, months, years) and associated with at least four mechanisms (variations in freshwater inflow, tides, wind, and exchange with coastal waters). The best understood component of temporal variability...
Mechanistic roles of soil humus and minerals in the sorption of nonionic organic compounds from aqueous and organic solutions
C. T. Chiou, T.D. Shoup, P.E. Porter
1985, Organic Geochemistry (8) 9-14
Mechanistic roles of soil humus and soil minerals and their contributions to soil sorption of nonionic organic compounds from aqueous and organic solutions are illustrated. Parathion and lindane are used as model solutes on two soils that differ greatly in their humic and mineral contents. In aqueous systems, observed sorptive...
FINDINGS OF A SYMPOSIUM ON COAL QUALITY.
Stanley P. Schweinfurth, Susan Garbini
1985, Conference Paper
The U. S. Geological Survey (USGS) has been doing research on coal quality for almost a century. Most of the work of the USGS regarding coal went into efforts to assess the quantity of coal in the United States, not the quality. On April 9-11, 1985, the U. S. Geological...
Geochemistry and petrogenesis of lamproites, late cretaceous age, Woodson County, Kansas, U.S.A.
R.L. Cullers, S. Ramakrishnan, P. Berendsen, T. Griffin
1985, Geochimica et Cosmochimica Acta (49) 1383-1402
Lamproite sills and their associated sedimentary and contact metamorphic rocks from Woodson County, Kansas have been analyzed for major elements, selected trace elements, and strontium isotopic composition. These lamproites, like lamproites elsewhere, are alkalic (molecular K2O + Na2OAl2O3= 1.6–2.6">K2O + Na2OAl2O3= 1.6–2.6), are ultrapotassic <span...
Heavy metals in white-tailed deer living near a zinc smelter in Pennsylvania
Louis Sileo, W. Nelson Beyer
1985, Journal of Wildlife Diseases (21) 289-296
White-tailed deer (Odocoileus virginianus (Zimmermann)) shot within 20 km of the zinc smelters in the Palmerton, Pennsylvania area contained extremely high renal concentrations of cadmium (372 ppm dry weight (dw)) and zinc (600 ppm dw). The deer with the highest renal zinc concentration was shot 4 km from the smelters and...
An ocean bottom seismometer study of shallow seismicity near the Mid- America Trench offshore Guatemala
E. L. Ambos, D.M. Hussong, C.E. Holman
1985, Journal of Geophysical Research Solid Earth (90) 11397-11412
Five ocean bottom seismometers recorded seismicity near the Mid-America Trench offshore Guatemala for 27 days in 1979. The array was emplaced in the lower slope region, just above the topographic trench, in the area investigated during Deep Sea Drilling Project legs 67 and 84. Approximately 170 events were recorded by...
Solid state recording current meter conversion
Ralph T. Cheng, Lichen Wang
1985, Conference Paper, Oceans Conference Record (IEEE)
The authors describe the conversion of an Endeco-174 current meter to a solid-state recording current meter. A removable solid-state module was designed to fit in the space originally occupied by an 8-track tape cartridge. The module contains a CPU and 128 kilobytes of nonvolatile CMOS memory. The solid-state module communicates...
Element mobility during alteration of silicic ash to kaolinite - A study of tonstein
R. A. Zielinski
1985, Sedimentology (32) 567-579
A laterally persistent kaolinitic mudstone parting (tonstein) occurring in a Wyoming coal bed of Eocene age was sampled to estimate the compositional contrast with a probable silicic ash precursor, and to determine the compositional influence of leached ash on immediately adjacent coal. With the exception of Al, and possibly Ti,...
Fish recruitment and movement in a flood control reservoir and tailwater
K.E. Jacobs, W.D. Swink, J.M. Nestler, L.T. Curtis
1985, Report
Abstract not submitted to date...
Seasonal variation in sediment transport on the Russian River shelf, California
D.E. Drake, D.A. Cacchione
1985, Continental Shelf Research (4) 495-514
Near-bottom currents, light transmission and scattering, and bottom pressure were measured with GEOPROBE tripods and vector-averaging current meters during June 1979 to April 1980 on the central shelf 10 km west of the Russian River, California. The instruments were located on the mid-shelf mud belt composed of bimodal sandy clayey...
EARTHQUAKE PERFORMANCE OF A BRIDGE DECK AND ABUTMENT.
M. Çelebi, G. Brady
C.A. Brebbia, A.S. Cakmak, Abdel Ghaffar, editor(s)
1985, Conference Paper
During the 24 April 1984 Morgan Hill Earthquake (M equals 6. 1), 15 channels of acceleration records were obtained at the site of the I-280-680/US 101 interchange 12 km west of the epicenter. These records include free field measurements as well as the acceleration response at one of the supporting...
Electrolytic corrosion of gold and the formation of Au2( SO4)3 in concentrated sulfuric acid
Frank E. Senftle, Donald B. Wright
1985, Journal of the Electrochemical Society (132) 129-130
No abstract available....
Extended computer system simsag
D. Zhou
1985, Computers & Geosciences (11) 509-511
[No abstract available]...
Vp/Vs ratios in the Yellowstone National Park region, Wyoming
S.N. Chatterjee, A.D. Pitt, H. M. Iyer
1985, Journal of Volcanology and Geothermal Research (26) 213-230
In this paper we study the variation of Vp/Vs and Poisson's ratio (??) in the Yellowstone National Park region, using earthquakes which were well recorded by a local seismic network. We find that the average Vp/Vs value within the geothermally active Yellowstone caldera is about 7% lower than in the...
Streamflow statistics and drainage-basin characteristics for the southwestern and eastern regions, Washington: Volume I. Southwestern Washington
John R. Williams, Harold E. Pearson
1985, Open-File Report 84-145-A
No abstract available....
Purification of Cyclops cultures by pH shock (Copepoda)
L. Bulkowski, W. F. Krise, K. A. Kraus
1985, Crustaceana (48) 179-182
No abstract available....
Zeolites in Eocene basaltic pillow lavas of the Siletz River Volcanics, Central Coast Range, Oregon
Terry E.C. Keith, Lloyd W. Staplese
1985, Clays and Clay Minerals (33) 135-144
Zeolites and associated minerals occur in a tholeiitic basaltic pillow lava sequence that makes up part of the Eocene Siletz River Volcanics in the central Coast Range, Oregon. Regional zoning of zeolite assemblages is not apparent; the zeolites formed in joints, fractures, and interstices, although most occur in central cavities...
Proximal bedded deposits related to pyroclastic flows of May 18, 1980, Mount St. Helens, Washington
P. D. Rowley, N. S. MacLeod, M. A. Kuntz, A.M. Kaplan
1985, Geological Society of America Bulletin (96) 1373-1383
Thin-bedded, dacitic, pumiceous pyroclastic-flow deposits partly cover the steep northern flank of Mount St. Helens volcano, Washington. They are termed proximal bedded pyroclastic-flow (PBPF) deposits and were formed during the eruption of May 18, 1980. These unconsolidated deposits, as much as 20 m thick, are characterized by well-defined, chiefly plane-parallel...
Analysis of low levels of rare earths by radiochemical neutron activation analysis
G.A. Wandless, J. W. Morgan
1985, Journal of Radioanalytical and Nuclear Chemistry Articles (92) 273-282
A procedure for the radiochemical neutron-activation analysis for the rare earth elements (REE) involves the separation of the REE as a group by rapid ion-exchange methods and determination of yields by reactivation or by energy dispersive X-ray fluorescence (EDXRF) spectrometry. The U. S. Geological Survey (USGS) standard rocks, BCR-1 and...
Statistical evaluation of an inductively coupled plasma atomic emission spectrometric method for routine water quality testing
J.R. Garbarino, B. E. Jones, G.P. Stein
1985, Applied Spectroscopy (39) 535-541
In an interlaboratory test, inductively coupled plasma atomic emission spectrometry (ICP-AES) was compared with flame atomic absorption spectrometry and molecular absorption spectrophotometry for the determination of 17 major and trace elements in 100 filtered natural water samples. No unacceptable biases were detected. The analysis precision of ICP-AES was found to...
Striped bass (Morone saxatilis) can be carriers of infectious pancreatic necrosis virus
S.J. Wechsler, C. L. Schultz, P. E. McAllister, F. M. Hetrick
1985, Fish Health News (14) vi-viii
Maryland striped bass: Recruitment declining below replacement
C.P. Goodyear, J.E. Cohen, S.W. Christensen
1985, Transactions of the American Fisheries Society (114) 146-151
A mathematical technique was developed to examine interrelationships among first‐year survival rates, adult fecundity, and adult survival of striped bass Morone saxatilis based on indices of year‐class strength. Application of this technique to striped bass in Maryland waters of the Chesapeake Bay provided evidence for reduced survival in the life...
