Geochemistries of arsenic, antimony, mercury, and related elements in sediments of Puget Sound
E.A. Crecelius, Michael H. Bothner, R. Carpenter
1975, Environmental Science & Technology (9) 325-333
No abstract available....
Magma beneath Yellowstone National Park
G. P. Eaton, R.L. Christiansen, H.M. Iyer, A. M. Pitt, D. R. Mabey, H. R. Blank Jr., I. Zietz, M. E. Gettings
1975, Science (188) 787-796
The Yellowstone plateau volcanic field is less than 2 million years old, lies in a region of intense tectonic and hydrothermal activity, and probably has the potential for further volcanic activity. The youngest of three volcanic cycles in the field climaxed 600,000 years ago with a voluminous ashflow eruption and...
Thermomagnetic analysis of meteorites, 2. C2 chondrites
D.E. Watson, E.E. Larson, J.M. Herndon, M.W. Rowe
1975, Earth and Planetary Science Letters (27) 101-107
Samples of all eighteen of the known C2 chondrites have been analyzed thermomagnetically. For eleven of these, initial Fe3O4 content is low (generally <1%) and theJs-T curves are irreversible. The heating curves show variable greater (up to 10 times) than it is initially. This...
A high 87Sr 86Sr mantle source for low alkali tholeiite, northern Great Basin
R. K. Mark, Hu C. Lee, H. R. Bowman, F. Asaro, E.H. McKee, R.R. Coats
1975, Geochimica et Cosmochimica Acta (39) 1671-1678
Olivine tholeiites, the youngest Tertiary units (about 8–11 m.y. old) at five widely spaced localities in northeastern Nevada, are geologically related to the basalts of the Snake River Plain, Idaho, to the north and are similar in major element and alkali chemistry to mid-ocean ridge basalts (MORB) and island arc...
The determination of specific forms of aluminum in natural water
R.B. Barnes
1975, Chemical Geology (15) 177-191
A procedure for analysis and pretreatment of natural-water samples to determine very low concentrations of Al is described which distinguishes the rapidly reacting equilibrium species from the metastable or slowly reacting macro ions and colloidal suspended material. Aluminum is complexed with 8-hydroxyquinoline (oxine), pH is adjusted to 8.3 to...
Short chain aliphatic acid anions in oil field waters and their contribution to the measured alkalinity
L.M. Willey, Y.K. Kharaka, T. S. Presser, J. B. Rapp, I. Barnes
1975, Geochimica et Cosmochimica Acta (39) 1707-1711
High alkalinity values found in some formation waters from Kettleman North Dome oil field are due chiefly to acetate and propionate ions, with some contribution from higher molecular weight organic acid ions. Some of these waters contain no detectable bicarbonate alkalinity. For waters...
The new Martian nomenclature of the international Astronomical Union
Vaucouleur G. de, J. Blunck, M. Davies, A. Dollfus, I.K. Koval, G. P. Kuiper, H. Masursky, S. Miyamoto, V.I. Moroz, C. Sagan, B. Smith
1975, Icarus (26) 85-98
A new nomenclature for Martian regions and topographic features uncovered by Mariner 9, as officially adopted by the International Astronomical Union, is described. About 180 craters, generally of diameters >100 km, have been named, as well as 13 classes of topographic...
PCB's in Suburban Watershed, Reston, Va
J.M. Martell, D. A. Rickert, F.R. Siegel
1975, Environmental Science & Technology (9) 872-875
No abstract available....
Vertical crustal movements preceding and accompanying the San Fernando earthquake of February 9, 1971: A summary
Robert O. Castle, Jack P. Church, Michael R. Elliot, Nancy L. Morrison
1975, Tectonophysics (29) 127-140
Comparative elevations referred chiefly to a tidal bench mark with a history of relatively positive movement show that much of the Transverse Ranges of southern California sustained major changes in elevation both before and in association with the ML 6.4 San Fernando earthquake of February 9, 1971. Preseismic changes in...
Trace element evaluation of a suite of rocks from Reunion Island, Indian Ocean
R. A. Zielinski
1975, Geochimica et Cosmochimica Acta (39) 713-734
Reunion Island consists of an olivine-basalt shield capped by a series of flows and intrusives ranging from hawaiite through trachyte. Eleven rocks representing the total compositional sequence have been analyzed for U, Th and REE. Eight of the rocks (group 1) have positive-slope, parallel, chondrite-normalized REE fractionation patterns. Using a...
Determining earthquake recurrence intervals from deformational structures in young lacustrine sediments
John D. Sims
1975, Tectonophysics (29) 141-152
Examination of the silty sediments in the lower Van Normal reservoir after the 1971 San Fernando, California earthquake revealed three zones of deformational structures in the 1-m-thick sequence of sediments exposed over about 2 km2 of the reservoir bottom. These zones are correlated with moderate earthquakes that shook the San Fernando...
Modes of fossil preservation
J.M. Schopf
1975, Review of Palaeobotany and Palynology (20) 27-53
The processes of geologic preservation are important for understanding the organisms represented by fossils. Some fossil differences are due to basic differences in organization of animals and plants, but the interpretation of fossils has also tended to be influenced by modes of preservation....
Mount St. Helens volcano: Recent and future behavior
D. R. Crandell, D. R. Mullineaux, M. Rubin
1975, Science (187) 438-441
Mount St. Helens volcano in southern Washington has erupted many times during the last 4000 years, usually after brief dormant periods. This behavior pattern suggests that the volcano, last active in 1857, will erupt again - perhaps within the next few decades. Potential volcanic hazards of several kinds should be...
Longevity of nonsprouting Ceanothus
Jon E. Keeley
1975, American Midland Naturalist (93) 504-507
Evidence is presented indicating species of Ceanothus in the subgenus Cerastes are generally longer-lived than species in the subgenus Euceanothus. It is proposed that this is due, at least in part, to the unique stem morphology of the former. The stems of these plants have a ribbed appearance which arises...
Chemicals used most frequently for control of infectious diseases of fishes
S. F. Snieszko
1975, Fish Health News (4) 2-7
Thin-section electron microscopy of mature Myxosoma cerebralis (Myxosporidea) spores
P.D. Lunger, B.L. Rhoads, K. Wolf, M.E. Markiw
1975, Journal of Parasitology (61) 476-480
The morphology of purified, mature Myxosoma cerebralis spores was examined by thin-section electron microscopy. Surface architecture corresponded closely to that described in an earlier scanning electron microscopy study of this organism (Lom and Hoffman, 1971). A uniformly thick spore wall is composed of finely granular, electron-lucent material. Intrawall "valvoplasm" at...
Mineral upplementation of diets containing soybean meal as a source of protein for rainbow trout
H. G. Ketola
1975, Progressive Fish-Culturist (37) 73-75
No abstract available....
Productivity and flowering of winter ephemerals in relation to Sonoran Desert shrubs
William L. Halvorson, Duncan T. Patten
1975, American Midland Naturalist (93) 311-319
Ephemeral plant biomass and density on a Sonoran Desert hill near Cave Creek, Arizona, vary relative to shrub canopy type and shrub density. Higher shrub density associated with increased elevation appears to decrease both ephemeral biomass productivity and density, while ephemeral growth is enhanced under a shrub canopy if it...
Thoracic collapse as affected by the retia thoracica in the dolphin
Clifford A. Hui
1975, Respiration Physiology (25) 63-70
The carcass of a subadult female Delphinus was placed in a hyperbaric chamber and subjected to two simulated dives each equivalent to 69.7 m. In one dive the thorax was in its natural state, and in the other 100 ml of water had been injected into each pleural cavity. Various morphometric...
A comprehensive list of the most important diseases of fishes and the drugs and chemicals used for their control
S. F. Snieszko
1975, Tropical Fish Hobbyist (24) 14-15, 19
Death feigning by ducks in response to predation by red foxes (Vulpes fulva)
Alan B. Sargeant, L. E. Eberhardt
1975, American Midland Naturalist (94) 108-119
Predation by captive red foxes (Vulpes fulva) on approximately 50 ducks comprised of five species was observed in tests conducted at the Northern Prairie Wildlife Research Center, Jamestown, North Dakota. Most ducks were attacked from a rear or lateral position and seized in the cervical or thoracic region. All birds...
Annual contribution of carbon, nitrogen, and phosphorus by migrant Canada geese to a hardwater lake
Bruce A. Manny, Robert G. Wetzel, W.C. Johnson
1975, International Association of Theoretical and Applied Limnology (19) 949-951
Each year more than 6,000 migrant Canada geese (Branta canadensis interior Todd) rest for 3 to 10 days during the months of March, October, November, and December on Wintergreen Lake, a productive 15 ha (33 acre) hardwater lake in the W. K. Kellogg Bird Sanctuary of Michigan State University in...
Some aspects of the breeding biology of the upland sandpiper in North Dakota
K.F. Higgins, L.M. Kirsch
1975, The Wilson Bulletin (87) 96-102
Abstract has not been submitted...
Renal excretion in coho salmon (Oncorhynchus kisutch) after acute exposure to 3-trifluoromethyl-4-nitrophenol
J.B. Hunn, J. L. Allen
1975, Journal of the Fisheries Research Board of Canada (32) 1873-1876
Coho salmon (Oncorhynchus kisutch) exposed to an acute, sublethal concentration of 3-trifluoromethyl-4-nitrophenol (TFM) exhibited an increased output of urine when compared with controls, but the urinary excretion of Na, K, Ca, Mg, and Cl was not affected. About 35 times more conjugated TFM than free TFM was excreted during the...
Residue dynamics of quinaldine and TFM in rainbow trout
J.B. Hunn, J. L. Allen
1975, General Pharmacology (6) 15-18
Study of the residue dynamics of 2-methylquinoline (quinaldine) and 3-trifluoromethyl-4-nitrophenol (TFM) in rainbow trout yielded the following findings:1. Uptake and distribution of TFM by trout was influenced by the biotransformation of the lipidsoluble free phenol. No such effect was observed with quinaldine.2. Disappearance of quinaldine and TFM from gallbladder bile...
