Geophysical and geochemical investigations of aerial radiometric anomalies in the Tabuk formation, Kingdom of Saudi Arabia
James A. Pitkin, A. Curtis Huffman Jr., Saudi Arabia. Deputy Ministry for Mineral Resources, U.S. Geological Survey Saudi Arabia Mission
1986, Report
An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia. The work on which this report was based was performed in accordance with a cooperative agreement between the U.S. Geological Survey and the Ministry of Petroleum...
Sampling suspended sediment in ice-covered rivers
J. V. Skinner
1986, Conference Paper
No abstract available....
Paleomagnetic evidence for the timing of collapse and resurgence of the Lake City Caldera, San Juan Mountains, Colorado
Richard L. Reynolds, Mark R. Hudson, Ken Hon
1986, Journal of Geophysical Research B: Solid Earth (91) 9599-9613
Rocks of the 23.1‐m.y.‐old Lake City caldera consist of the compositionally zoned Sunshine Peak Tuff, postcollapse intracaldera lava flows, and resurgent quartz syenite intrusions. Declinations of reversely magnetized (I = −45° to −75°) Sunshine Peak Tuff change from easterly (D = 93°–130°) throughout most of the tuff to southerly (D = 195°–207°) within...
Fecal bile acids of black-footed ferrets
Louise Richardson, M.K. Johnson, T. W. Clark, M.H. Schroder
1986, Great Basin Naturalist Memoirs (8) 141-144
Fecal bile acid characteristics have been used to identify scats to species of origin. Fecal bile acids in scats from 20 known black-footed ferrets ( Mustela nigripes ), 7 other known small carnivores, and 72 of unknown origin were analyzed to determine if this procedure could be used as a...
Captive-reared Aleutian Canada Geese migrate to the Marshall Islands
Paul F. Springer, Forrest B. Lee, William L. Schipper, Daniel R. Yparraguirre
1986, 'Elepaio (46) 153-154
No abstract available....
Role of blanket deposits on the hydrology and water chemistry of the limestone water-table aquifer within the north coast of Puerto Rico through interpretation of geochemical data
Angel Roman-Mas
Ferdinand Quinones, A.V. Sanchez, H. Smith, editor(s)
1986, Conference Paper, Proceedings of the Third Caribbean Islands Water-Resources Congress
Late Pleistocene and Holocene paleolimnology of two mountain lakes in western Tasmania
J. Platt Bradbury
1986, Palaios (1) 381-388
No abstract available. ...
A budget for continental growth and denudation
D. G. Howell, R.W. Murray
1986, Science (233) 446-449
Oceanic crustal material on a global scale is re-created every 110 million years. From the data presented it is inferred that potential sialic material is formed at a rate of about 1.35 cubic kilometers per year, including hemipelagic volcanic sediments that accumulate at a rate of about 0.05 cubic kilometer...
Estimating ground-water influx to a portion of the Rio Grande de Manati River basin in Puerto Rico through the measurement of 222Rn
K. Kelly Ellins, Angel Roman-Mas, Roger W. Lee
Ferdinand Quinones, A.V. Sanchez, H. Smith, editor(s)
1986, Conference Paper, Proceedings of the Third Caribbean Islands Water-Resources Congress
Water has become a critical commodity in the Caribbean Region. In spite of a relative abundance of rainfall even on the smaller islands, the region is faced with severe seasonal shortages as well as increasing water quality problems. The supply of thewater needs in the area will become even more critical...
Voyager 2 in the Uranian system: Imaging science results
B.A. Smith, L.A. Soderblom, R. Beebe, D. Bliss, J. M. Boyce, A. Brahic, G.A. Briggs, R. H. Brown, S.A. Collins, A.F. Cook II, S.K. Croft, J.N. Cuzzi, G. E. Danielson, M. E. Davies, T.E. Dowling, D. Godfrey, C.J. Hansen, M. Camille Harris, G.E. Hunt, A.P. Ingersoll, T. V. Johnson, R.J. Krauss, H. Masursky, D. Morrison, Tobias Owen, J. B. Plescia, James B. Pollack, C.C. Porco, K. Rages, C. Sagan, E.M. Shoemaker, L.A. Sromovsky, C. Stoker, R.G. Strom, V.E. Suomi, S.P. Synnott, R.J. Terrile, P. Thomas, W.R. Thompson, J. Veverka
1986, Science (233) 43-64
Voyager 2 images of the southern hemisphere of Uranus indicate that submicrometersize haze particles and particles of a methane condensation cloud produce faint patterns in the atmosphere. The alignment of the cloud bands is similar to that of bands on Jupiter and Saturn, but the zonal winds are nearly opposite....
Marking fingerling striped bass and blue tilapia with coded wire tags and microtaggants
G. T. Klar, N. C. Parker
1986, North American Journal of Fisheries Management (6) 439-444
Fingerling striped bass (Morone saxatilis) of two year classes were tagged in four body locations with coded wire tags and on two locations with Microtaggants (laminated plastic particles containing layers of fluorescent and magnetic material). Retention of coded wire tags ranged from 33% for tags in the nose to 100%...
Changing landscapes and the cosmopolitism of the eastern Colorado avifauna
Fritz L. Knopf
1986, Wildlife Society Bulletin (14) 132-142
The avifauna of continental North America has changed dramatically since colonial times. Excessive hunting contributed, at least in part, to the extinction of birds such as the great auk (Pinguinus impennis) and passenger pigeon (Ectopistes migratorius), while more recently organochlorine insecticide residues have resulted in drastic reductions in numbers...
Population trends, reproductive success, and organochlorine chemical contaminants in waterbirds nesting in Galveston Bay, Texas
Kirke A. King, Alexander J. Krynitsky
1986, Archives of Environmental Contamination and Toxicology (15) 367-376
The effects of environmental contaminants on the reproductive success of olivaceous cormorants (Phalacrocorax olivaceus), laughing gulls (Larus atricilla), and black skimmers (Rhynchops niger) nesting in Galveston Bay, Texas were investigated from 1980 through 1982. Populations of cormorants and gulls have remained stable in recent years, but skimmer numbers may have...
Hydrogeochemistry of sulfide and arsenic-rich tailings and alluvium along Whitewood Creek, South Dakota (Part 1 of 3 parts)
F. M. M. Morel, J. Rouse, J. L. Schnoor, M. G. Wolman, J. A. Cherry
1986, Mineral & Energy Resources (29)
During 100 years prior to 1977, Whitewood Creek, SD, received about 1 billion tons of arsenic-rich and sulfide-mineral rich tailings from gold mining operations. A hydrogeochemical investigation conducted in 1983-84 focused on four local study areas on the flood plain where tailings deposits exist on top of moderately permeable alluvium....
An assessment of ground-nest depredation in a catastrophically disturbed region, Mount St. Helens, Washington
Douglas C. Andersen, James A. MacMahon
1986, The Auk (103) 622-626
The explosive eruption of the Mount St. Helens volcano on 18 May 1980 severely affected a large ar- ray of plant and animal populations (Edwards and Schwartz 1981, MacMahon 1982, Wissmar et al. 1982) over a vast area (>600 kM2) (Fig. 1). Volcanic eruptions are relatively common agents of large-scale...
Recent developments in hydrologic instrumentation
Vito J. Latkovich, James C. Futrell II
Douglas L. Kane, editor(s)
1986, American Water Resources Association Technical Publication Series 86-1
The programs of the U.S. Geological Survey require instrumentation for collecting and monitoring hydrologic data in cold regions. The availability of space-age materials and implementation of modern electronics and mechanics is making possible the recent developments of hydrologic instrumentation, especially in the area of measuring streamflow under ice cover. Material...
[Book review] Bobwhites in the Rio Grande Plain of Texas
Matthew C. Perry
1986, Journal of Wildlife Management (50) 521-522
No abstract available. ...
Paleomagnetism of Middle Tertiary volcanic rocks from the Western Cascade Series, northern California
Myrl E. Beck Jr., Russell F. Burmester, Douglas E. Craig, C. Sherman Gromme, Ray E. Wells
1986, Journal of Geophysical Research B: Solid Earth (91) 8219-8230
The Western Cascade Series (WCS) is a 3.5‐km‐thick, crudely homoclinal (east dipping) calcalkaline volcanic sequence of mid‐Oligocene to early Miocene age that crops out near the southern tip of the Cascade Range in northern California. The mean direction of remanent magnetization in the WCS is D, 4.9°; I, 57.6° (N,...
Blood chemistry and hematocrit of captive and wild canvasbacks
Matthew C. Perry, Holliday H. Obrecht III, Byron K. Williams, Wayne J. Kuenzel
1986, Journal of Wildlife Management (50) 435-441
Blood chemistry and packed cell volume (PCV) did not vary among groups of captive canvasbacks (Aythya valisineria) maintained ad libitum on 5 diets varying in metabolizable energy (ME) and protein. Ducks fed low quality diets increased their consumption so that all ducks were obtaining similar amounts of energy and protein....
Relationship between snow depth and gray wolf predation on white-tailed deer
Michael E. Nelson, L. David Mech
1986, Journal of Wildlife Management (50) 471-474
Survival of 203 yearling and adult white-tailed deer (Odocoileus virginianus) was monitored for 23,441 deer days from January through April 1975-85 in northeastern Minnesota. Gray wolf (Canis lupus) predation was the primary mortality cause, and from year to year during this period, the mean predation rate ranged from 0.00 to...
Influence of nutrients on feed intake and condition of captive canvasbacks in winter
Matthew C. Perry, Wayne J. Kuenzel, Byron K. Williams, John A. Serafin
1986, Journal of Wildlife Management (50) 427-434
Dramatic changes in the food habits and distribution of canvasbacks (Aythya valisineria) in Chesapeake Bay during the 1970's generated a need to evaluate the nutritional value of food items and the requirements of this species on its wintering grounds. Groups of captive canvasbacks were maintained ad libitum on 5 diets...
Discussion of "Aquifer test analysis in fractured rocks with linear flow pattern"
Paul A. Heish
1986, Groundwater (24) 530-530
No abstract available...
Glacial sequence near McCall, Idaho: Weathering rinds, soil development, morphology, and other relative-age criteria
S.M. Colman, Kenneth L. Pierce
1986, Quaternary Research (25) 25-42
The sequence of glacial deposits near McCall, Idaho, previously assigned to the Pinedale and Bull Lake glaciations, contains deposits of four different ages. These ages are defined by multiple relative-age criteria, including weathering rinds, soil development, surface-rock weathering, morainal morphology, and loess stratigraphy. The thickness of weathering rinds on basaltic...
Organochlorine residues in adult mallard and black duck wings, 1981-1982
R. M. Prouty, C.M. Bunck
1986, Environmental Monitoring and Assessment (6) 49-57
Ten organochlorine compounds were identified in pools of black duck (Anas rubripes) and mallard (A. platyrhynchos) wings from the 1981–82 hunting season. Most organochlorine compounds occurred very infrequently. Among those compounds positively identified by mass spectrometry, DDE and, secondarily, PCB had the highest frequencies of occurrence....
Survival estimates for North American Atlantic brant, 1956-75
R.E. Kirby, M.J. Conroy, T.W. Barry, R.H. Kerbes
1986, Journal of Wildlife Management (50) 29-32
The entire banding and recovery record for Atlantic brant (Branta bernicla hrota) was analyzed to determine recovery and survival rates for 1956-75. Composite survival rates for all adults (sex of banded birds was not recorded) during the 19-year period ranged from 0.984 to 0.591 (x = 0.785). Survival rates for...
