Electrothermal atomisation atomic absorption conditions and matrix modifications for determining antimony, arsenic, bismuth, cadmium, gallium, gold, indium, lead, molybdenum, palladium, platinum, selenium, silver, tellurium, thallium and tin following back-extraction of organic aminohalide extracts
J. R. Clark
1986, Journal of Analytical Atomic Spectrometry (1) 301-308
A multi-element organic-extraction and back-extraction procedure, that had been developed previously to eliminate matrix interferences in the determination of a large number of trace elements in complex materials such as geological samples, produced organic and aqueous solutions that were complex. Electrothermal atomisation atomic absorption conditions and matrix modifications have been...
Inductively coupled plasma atomic fluorescence spectrometric determination of cadmium, copper, iron, lead, manganese and zinc
R. F. Sanzolone
1986, Journal of Analytical Atomic Spectrometry (1) 343-347
An inductively coupled plasma atomic fluorescence spectrometric method is described for the determination of six elements in a variety of geological materials. Sixteen reference materials are analysed by this technique to demonstrate its use in geochemical exploration. Samples are decomposed with nitric, hydrofluoric and hydrochloric acids, and the residue dissolved...
STORM-SEWER FLOW MEASUREMENT AND RECORDING SYSTEM.
Frederick A. Kilpatrick, William R. Kaehrle
1986, Transportation Research Record 1-9
A comprehensive study and development of instruments and techniques for measuring all components of flow in a storm-sewer drainage system were undertaken by the U. S. Geological Survey under the sponsorship of FHWA. The study involved laboratory and field calibration and testing of measuring flumes, pipe insert meters, weirs, and...
Akermanite: phase transitions in heat capacity and thermal expansion, and revised thermodynamic data.
B. S. Hemingway, H. T. Evans Jr., Gordon L. Nord Jr., H.T. Haselton Jr., R. A. Robie, J. J. McGee
1986, Canadian Mineralogist (24) 425-434
A small but sharp anomaly in the heat capacity of akermanite at 357.9 K, and a discontinuity in its thermal expansion at 693 K, as determined by XRD, have been found. The enthalpy and entropy assigned to the heat-capacity anomaly, for the purpose of tabulation, are 679 J/mol and 1.9...
METEORIC-HYDROTHERMAL SYSTEMS.
Robert E. Criss, Hugh P. Taylor Jr.
1986, Reviews in Mineralogy (16) 373-424
This paper summarizes the salient characteristics of meteoric-hydrothermal systems, emphasing the isotopic systematics. Discussions of permeable-medium fluid dynamics and the geology and geochemistry of modern geothermal systems are also provided, because they are essential to any understanding of hydrothermal circulation. The main focus of the paper is on regions of...
Distribution of anomalously high K2O volcanic rocks in Arizona: metasomatism at the Picacho Peak detachment fault
W. E. Brooks
1986, Geology (14) 339-342
Metasomatized Tertiary lavas with anomalously high K2O and low Na2O content are distributed within the northwest-trending Miocene extensional terrane of southwestern Arizona. These rocks are common near core-complex–related detachment faults at Picacho Peak and the Harcuvar Mountains and in listric-faulted terrane at the...
Extinction and survival of plant life following the Cretaceous/Tertiary boundary event, Western Interior, North America
R.H. Tschudy, B.D. Tschudy
1986, Geology (14) 667-670
The palynological Cretaceous/Tertiary boundary is recognized in the northern part of the Western Interior by the abrupt disappearance of a few characteristic Cretaceous pollen genera, principally Proteacidites and Aquilapollenites. In the southern part, the boundary is recognized by the disappearance of a somewhat different group of...
Recovery of several volatile organic compounds from simulated water samples: Effect of transport and storage
L.C. Friedman, L.J. Schroder, M.G. Brooks
1986, Environmental Science & Technology (20) 826-829
No abstract available....
Southern hemisphere origin of the Cretaceous Laytonville Limestone of California
J.A. Tarduno, M. McWilliams, W.V. Sliter, H. E. Cook, M.C. Blake Jr., I. Premoli-Silva
1986, Science (231) 1425-1428
New paleomagnetic, paleontologic, and stratigraphic data from outcrops of the Laytonville Limestone (101 to 88 million years old) support a Southern Hemisphere orgin. A paleomagnetic megaconglomerate test is statistically significant and suggests magnetization at 14?? ?? 5?? south, predating Late Cretaceous to Eocene (70 to 50 million years ago) accretion....
Migration of volcanism in the San Francisco volcanic field, Arizona
K. L. Tanaka, E.M. Shoemaker, G. E. Ulrich, E.W. Wolfe
1986, Geological Society of America Bulletin (97) 129-141
The remanent magnetization of volcanic rocks has been determined at 650 sites in the San Francisco volcanic field in the southern part of the Colorado Plateau. The polarity of remanent magnetization—combined with K-Ar age determinations, spatial and petrographic associations, stratigraphic relations, and state of preservation...
A revised chronology for the last Pleistocene Lake cycle in the central Lahontan Basin
R.S. Thompson, L. Benson, E.M. Hattor
1986, Quaternary Research (25) 1-9
Radiocarbon dates of plant materials from packrat middens in caves below the elevation of the last high stand of Pleistocene Lake Lahontan, in conjunction with radiocarbon dates of ancient archaeological materials, provide evidence that the last high stand terminated before 12,070 yr B.P. This new information suggests that the last...
You asked for it! A review of new handout publications and aquaculture papers presented at the 39th Annual Conference of the Southeastern Association of Fish and Wildlife Agencies
M. Martin
1986, Aquaculture Magazine (12) 39-42
Effect of exogenous corticosteroids on circulating virus and neutralizing antibodies in striped bass (Morone saxatilis) infected with infectious pancreatic necrosis virus
S.J. Wechsler, P. E. McAllister, F. M. Hetrick, D. P. Anderson
1986, Veterinary Immunology and Immunopathology (12) 305-311
Analytical results and sample locality map of heavy-mineral-concentrate and rock samples from the Fort Piute Wilderness Study Area (CDCA- 267), San Bernardino County, California
B. M. Adrian, J. G. Frisken, Paul H. Briggs, L. A. Bradley, J.G. Crock
1986, Open-File Report 86-584
No abstract available....
Influence of weather and density on lamb survival of desert mountain sheep
Charles L. Douglas, David M. Leslie Jr.
1986, Journal of Wildlife Management (50) 153-156
This report concerns the effect of weather on lamb survival in desert mountain sheep (Ovis canadensis nelsoni) to 6-8 months of age in the River Mountains, Nevada, and how it integrates with density to limit the population. Regression analyses were used to examine relationships between lamb survival and weather variables...
Dune stabilization on San Miguel Island off the coast of southern California
W. L. Halvorson, R. E. Koske, D.P. Morris
1986, Restoration & Management Notes (4) 35-35
No abstract available....
Desert tortoise (Gopherus agassizii) relocation: implications of social behavior and movements
K.H. Berry
1986, Herpetologica (42) 113-125
Strategies for reducing risks from introductions of aquatic organisms: A philosophical perspective
W.R. Courtenay Jr., J.N. Taylor
1986, Fisheries (11) 30-33
North American waters contain a variety of introduced aquatic plants, invertebrates and fishes. Many species are exotic (of foreign origin) but most are transplants of native forms. While carelessness and accidental releases have led to establishment of the majority of introduced aquatic organisms, a significant number have been purposefully or...
You asked for it! The fathead minnow: an overview on propagation, culturing, and uses
M. Martin
1986, Aquaculture Magazine (12) 48-51
Antimicrobials and fish: a review of drugs used to treat bacterial diseases of channel catfish and rainbow trout
R. L. Herman, G. L. Bullock
1986, Veterinary and Human Toxicology (28 Supp 1) 11-17
You asked for it! Re-inventing the wheel: raceway production of catfish
M. Martin
1986, Aquaculture Magazine (12) 40-41
An incidence of twinning in the sea otter (Enhydra lutris)
Ronald J. Jameson, James L. Bodkin
1986, Marine Mammal Science (2) 305-309
On 3 October 1984 at 0928 h (PST) near Pt. San Simeon, California (35°39’N, 121°11’W), we observed a female sea otter (Enhydra lutris) resting in a kelp bed (Macrocystis pyrifera) with a small pup on her chest; approximately 2 m away another small pup floated unattended in the kelp. The...
Immunodetection of antibodies in the mucus of rainbow trout infected with or immunized against the furunculosis agent Aeromonas salmonicida
R. C. Cipriano
1986, Microbios Letters (32) 105-112
Use of erythromycin in reducing vertical transmission of bacterial kidney disease
G. L. Bullock, S.L. Leek
1986, Veterinary and Human Toxicology (28 Supp 1) 18-20
Shallow subsurface temperature surveys in the Basin and Range province, U.S.A.-I. Review and evaluation
F. H. Olmsted, A. H. Welch, S. E. Ingebritsen
1986, Geothermics (15) 251-265
Temperature surveys at depths of 1–2 m have had varying success in geothermal exploration in the Basin and Range province. The most successful surveys have identified patterns of near-surface thermal-fluid flow within areas of less than 2 km2. Results have been less consistent in larger areas where zones of hydrothermal...
