Naturally occurring and experimentally induced castor bean (Ricinus communis) poisoning in ducks
Wayne I. Jensen, J.P. Allen
1981, Avian Diseases (25) 184-194
Castor bean (Ricinus communis) poisoning accounted for the death of several thousand ducks in the Texas panhandle in the fall and winter months of 1969-1971.Signs of intoxication resembled those of botulism, except for mucoid, blood-tinged excreta. The most common lesions were severe fatty change in the liver, widely distributed internal...
Waterfowl management and waterfowl disease: Independent or cause/effect relationships?
Milton Friend
1981, Transactions of the American Wildlife and Natural Resources Conference (46) 94-103
No abstract available....
The status and distribution of ants in the Crater District of Haleakala National Park
Joan H. Fellers, Gary M. Fellers
1981, Technical Report CPSU/UH 40
The Crater District of Haleakala National Park was surveyed for ants. Three species were found. Argentine ants (Iridomyrmex humilis) occurred only within I km of the park headquarters and the nearby research facility. Hypoponera opaciceps was found in small numbers throughout the Crater District. Cardiocondyla emeryi was present only at...
Growth and mortality of fry of Lake Michigan lake trout during chronic exposure to PCB's and DDE
William H. Berlin, Robert J. Hesselberg, Michael J. Mac
1981, Technical Paper 105
Fry hatched from eggs of Lake Michigan lake trout (Salvelinus namaycush) were exposed (beginning about 1 week after hatching) to contaminant concentrations of PCB's and DDE similar to those in water and plankton in southeastern Lake Michigan (1X level), and to concentrations about 5 (5X) and 25 (25X) times greater....
Erosion control techniques used in Redwood National Park, northern California, 1978-1979
W. Weaver, Mary Ann Madej
1981, Publication 132
No abstract available at this time...
Bighorn habitat evaluation and management guidelines for the Grapevine Mountains, Death Valley National Monument
C. L. Douglas, K.J. Kingsley
1981, Technical Report CPSU/UNLV 023/01
No abstract available at this time...
Historical evaluation and management recommendations for beavers at Lassen Volcanic National Park
Gary M. Fellers
1981, Technical Report CPSU/UCD 3
No abstract available at this time...
Stable isotope systematics in mesozoic granites of Central and Northern California and Southwestern Oregon
U. Masi, J. R. O’Neil, R. W. Kistler
1981, Contributions to Mineralogy and Petrology (76) 116-126
18O, D, and H2O+ contents were measured for whole-rock specimens of granitoid rocks from 131 localitics in California and southwestern Oregon. With 41 new determinations in the Klamath Mountains and Sierra Nevada, initial strontium isotope ratios are known for 104 of these samples. Large variations in ??18O (5.5 to 12.4),...
Significant results from using earth observation satellites for mineral and energy resource exploration
William D. Carter
1981, Advances in Space Research (1) 261-269
A large number of Earth-observation satellites orbit our world several times each day, providing new information about the land and sea surfaces and the overlying thin layer of atmosphere that makes our planet unique. Meteorological satellites have had the longest history of experimental use and most are now considered operational....
Role of solute-transport models in the analysis of groundwater salinity problems in agricultural areas
Leonard F. Konikow
1981, Agricultural Water Management (4) 187-205
Undesirable salinity increases occur in both groundwater and surface water and are commonly related to agricultural practices. Groundwater recharge from precipitation or irrigation will transport and disperse residual salts concentrated by evapotranspiration, salts leached from soil and aquifer materials, as well as some dissolved fertilizers and pesticides. Where stream salinity...
Uplift of the lesser Himalayas, Northern Pakistan, as inferred from fission-track ages of sphene, epidote, and zircon
P.K. Zeitler, R.A.K. Tahirkheli, C. W. Naeser, N.M. Johnson, J.B. Lyons
1981, Nuclear Tracks (5) 252
[No abstract available]...
Objectives, accomplishments, and future plans of IGCP project 143, remote sensing and mineral exploration
W. D. Carter, L. C. Rowan
1981, Advances in Space Research (1) 227-236
The International Geological Correlation Programme (IGCP) is a worldwide cooperative research programme that began in 1974 under the auspices of the International Union of Geological Sciences. Because of the global availability of Earth resources data collected by satellites and the great interest among geologists in taking advantage of these new...
Hydromythology and ethnohydrology in the New World
William Back
1981, Water Resources Research (17) 257-287
From mythology, archeology, and chronicles of early explorers we can learn how early Americans viewed the cause and effect relations of hydrologic phenomena. Hopes and fears are the basis of religion, and it was through religion that water management was first practiced. Early people used their water resources to develop...
Earthquakes May-June 1980.
W. J. Person
1981, Earthquake Information Bulletin (USGS) (13) 34-35
The months were seismically active, although only one major event (7.0-7.9) occurred in an unpopulated Philippine Island. Mexico was struck by a 6.3 quake on June 9 killing at least two people. The most significant earthquake in the United States was in the Mammoth Lakes area of California. -from Author...
Lithostratigraphy of Shell 272-1 and 273-1 Wells: Implications as to depositional history of the Baltimore Canyon Trough, Mid- Atlantic OCS
J. Libby-French
1981, American Association of Petroleum Geologists Bulletin (65) 1476-1484
Upper Jurassic gray and red-brown shale, sandstone, and coal are the oldest strata penetrated by the Shell 272-1 and 273-1 wells, located approximately 66 mi (106 km) southeast of Atlantic City, New Jersey, in the northwest part of the Baltimore Canyon Trough. The Lower Cretaceous section consists of gray shale...
Pleistocene high-silica rhyolites of the Coso volcanic field, Inyo County, California
C. R. Bacon, R. Macdonald, R. L. Smith, P. A. Baedecker
1981, Journal of Geophysical Research (86) 10223-10241
The high-silica rhyolite domes and lava flows of the bimodal Pleistocene part of the Coso volcanic field provide an example of the early stages of evolution of a silicic magmatic system of substantial size and longevity. Major and trace element compositions are consistent with derivation from somewhat less silicic parental...
Lithology, reservoir properties, and burial history of portion of Gammon Shale (Cretaceous), southwestern North Dakota
D. L. Gautier
1981, American Association of Petroleum Geologists Bulletin (65) 1146-1159
In the northern Great Plains, large quantities of biogenic methane are contained at shallow depths in Cretaceous marine mudstones. The Gammon Shale and equivalents of the Milk River Formation in Canada, which comprise most sediments deposited offshore during the Eagle-Telegraph Creek regression, are typical of such gas-bearing rocks. At Little...
An examination of techniques for reformatting digital cartographic data/part 1: The raster-to- vector process.
Donna J. Peuquet
1981, Cartographica: The International Journal for Geographic Information and Geovisualization (18) 34-48
Current graphic devices suitable for high-speed computer input and output of cartographic data are tending more and more to be raster-oriented, such as the rotating drum scanner and the color raster display. However, the majority of commonly used manipulative techniques in computer-assisted cartography and automated spatial data handling continue to...
Sr isotopic tracer study of the Samail ophiolite, Oman
M. A. Lanphere, R. G. Coleman, C.A. Hopson
1981, Journal of Geophysical Research Solid Earth (86) 2709-2720
We have measured Rb and Sr concentrations and Sr isotopic compositions in 41 whole-rock samples and 12 mineral separates from units of the Samail ophiolite, including peridotite, gabbro, plagiogranite, diabase dikes, and gabbro and websterite dikes within the metamorphic peridotite. Ten samples of cumulate gabbro from the Wadir Kadir section...
Mt. St. Helens: evidence of increased magmatic gas component
R.E. Stoiber, S.N. Williams, L.L. Malinconico Jr., D. A. Johnston, T. J. Casadevall
1981, Journal of Volcanology and Geothermal Research (11) 203-212
This paper presents measurements of SO2 flux and ash leachate chemistry from Mt. St. Helens volcano during the period May 18 to July 22 which are in contrast to similar data from before May 18. Comparison of post-18 May SO2 data with similar data from other volcanoes leads to the...
The logic of multispectral classification and mapping of land
Charles J. Robinove
1981, Remote Sensing of Environment (11) 231-244
The use of multispectral reflectance data as surrogates for land attributes must be done within strict rules of logic and with a recognition of judgmental factors such as the use of a priori or a posteriori classification schemes. The naming and describing of spectral classes as surrogates of information classes...
The distribution of uranium and thorium in granitic rocks of the basin and range province, Western United States
J.M. McNeal, D. E. Lee, Hugh T. Millard Jr.
1981, Journal of Geochemical Exploration (14) 25-40
Some secondary uranium deposits are thought to have formed from uranium derived by the weathering of silicic igneous rocks such as granites, rhyolites, and tuffs. A regional geochemical survey was made to determine the distribution of uranium and thorium in granitic rocks of the Basin and Range province in order...
The Piney Branch Complex: A metamorphosed fragment of the central Appalachian ophiolite in northern Virginia
Avery A. Drake Jr., Benjamin A. Morgan
1981, American Journal of Science (281) 484-508
No abstract available....
Estimating usable resources from historical industry data
S.M. Cargill, D. H. Root, E. H. Bailey
1981, Economic Geology (76) 1081-1095
Historical production statistics are used to predict the quantity of remaining usable resources. The commodities considered are mercury, copper and its byproducts gold and silver, and petroleum; the production and discovery data are for the United States. The results of the study indicate that the cumulative return per unit of...
The earliest seeds
W.H. Gillespie, G.W. Rothwell, S.E. Scheckler
1981, Nature (293) 462-464
Lagenostomalean-type seeds in bifurcating cupule systems have been discovered in the late Devonian Hampshire Formation of Randolph County, West Virginia, USA (Fig. 1). The associated megaflora, plants from coal balls, and vertebrate and invertebrate faunas demonstrate that the material is Famennian; the microflora indicates a more specific Fa2c age. Consequently,...
