Publications
USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.
Filter Total Items: 3097
Interpretation of exploration geochemical data from the Ugashik, Bristol Bay, and western Karluk quadrangles, Alaska Interpretation of exploration geochemical data from the Ugashik, Bristol Bay, and western Karluk quadrangles, Alaska
No abstract available.
Authors
S. E. Church, James G. Frisken, Frederic H. Wilson
A comparison of instrumental dewatering methods for the separation and concentration of suspended sediment for subsequent trace element analysis A comparison of instrumental dewatering methods for the separation and concentration of suspended sediment for subsequent trace element analysis
A comparison involving both field and laboratory trials was performed to evaluate the utility of two continuous-flow centrifuges and a tangential-flow filtration system for dewatering suspended sediments for subsequent trace element analysis. Although recovery efficiencies for the various devices differ, the analytical results from the separated suspended sediments indicate that any of...
Authors
A. J. Horowitz, K. A. Elrick, R.C. Hooper
Geologic studies in Alaska by the U.S. Geological Survey, 1988 Geologic studies in Alaska by the U.S. Geological Survey, 1988
This volume continues the annual series of U.S. Geological Survey (USGS) reports on geologic investigations in Alaska. Since 1975, when the first of these collections of short papers appeared under the title "The United States Geological Survey in Alaska: Accomplishments during 1975," the series has been published as USGS circulars. This bulletin departs from the circular style, in part...
Extra-pair copulation in the greater white-fronted goose Extra-pair copulation in the greater white-fronted goose
Controlled experiments and quantitative field studies with both captive and wild waterfowl (Family Anatidae) have demonstrated that extra-pair copulations (EPCs, both forced and unforced) may be a viable alternative reproductive strategy for males (Mineau and Cooke 1979; Burns et al. 1980; Cheng et al. 1982, 1983; Afron 1985; Evarts and Williams 1987). In a review of EPCs in waterfowl...
Authors
Craig R. Ely
Nesting biology of pacific loons, Gavia pacifica, on the Yukon-Kuskokwim Delta, Alaska Nesting biology of pacific loons, Gavia pacifica, on the Yukon-Kuskokwim Delta, Alaska
The nesting biology of Pacific Loons, Gavia pacifica, was studied from 1973 to 1975 on the Yukon-Kuskokwim Delta, Alaska. Loons maintained territories on ponds throughout the pre-nesting period. Both adults incubated eggs and raised the young. Males incubated more than females during early incubation, and females more than males during late incubation. The female assumes much of the...
Authors
Margaret R. Petersen
Body composition and weight dynamics of wintering greater white-fronted geese Body composition and weight dynamics of wintering greater white-fronted geese
Adult greater white-fronted geese (Anser albifrons frontalis) wintering in southern Oregon and California increased or maintained body weight in autumn, lost weight from autumn through winter, and rapidly increased in weight before spring migration in late April. We documented significant annual differences in body weights for both sexes. We related seasonal changes in body weight to...
Authors
Craig R. Ely, Dennis G. Raveling
Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report Populations, productivity, and feeding habits of seabirds at Cape Thompson, Alaska: Final report
Investigations of seabird population sizes and breeding biology were conducted at Cape Thompson from 1959 to 1961 during pre-development studies associated with the Atomic through 1982, the Alaskan Program (OCSEAP) supported determine whether changes Energy Commission’s “Project Chariot.” From 1976 Outer Continental Shelf Environmental Assessment efforts to recensus seabirds at Cape...
Authors
Brian S. Fadely, John F. Piatt, Scott A. Hatch, David G. Roseneau
Cytopathology and coagulopathy associated with viral erythrocytic necrosis in chum salmon Cytopathology and coagulopathy associated with viral erythrocytic necrosis in chum salmon
The 8-month cytopathologic progression of viral erythrocytic necrosis (VEN) disease in chum salmon Oncorhynchus keta is described. Single to multiple acidophilic, cytoplasmic viral inclusion bodies developed first in mature erythrocytes and then, within 1–2 months, all morphologically identifiable hemopoietic cell types contained VEN inclusions. Cytologic analysis indicated that...
Authors
John R. MacMillian, D. Mulcahy, M.L. Landolt
Pre-field study and mineral resource assessment of the Sleetmule quadrangle, southwestern Alaska Pre-field study and mineral resource assessment of the Sleetmule quadrangle, southwestern Alaska
No abstract available.
Authors
Marti L. Miller, H. E. Belkin, R. B. Blodgett, T. K. Bundtzen, J. W. Cady, R.J. Goldfarb, J. E. Gray, R. G. McGimsey, S. L. Simpson
ODP investigates Indian Ocean origins ODP investigates Indian Ocean origins
No abstract available.
Authors
F.M. Gradstein, J. Ludden
Impacts of petroleum development in the Arctic Impacts of petroleum development in the Arctic
In their article “Cumulative impacts of oil fields on northern Alaskan landscapes.” D. A. Walter et al. (1) document some direct and indirect impacts of petroleum development in the Arctic on selected portions of the Prudhoe Bay Oil field. While most of the kinds of impacts they discuss are valid points to consider in designing an arctic oil field, the magnitude of what they describe is...
Authors
Robertson S.B.