Expendable bubble tiltmeter for geophysical monitoring
J.A. Westphal, M.A. Carr, W.F. Miller, D. Dzurisin
1983, Review of Scientific Instruments (54) 415-418
An unusually rugged highly sensitive and inexpensive bubble tiltmeter has been designed, tested, and built in quantity. These tiltmeters are presently used on two volcanoes and an Alaskan glacier, where they continuously monitor surface tilts of geological interest. This paper discusses the mechanical, thermal, and electric details of the meter,...
Structure and petrology of the La Perouse gabbro intrusion, Fairweather Range, southeastern Alaska
R. A. Loney, G. R. Himmelberg
1983, Journal of Petrology (24) 377-423
The middle Tertiary La Perouse gabbro intrusion occurs in a Mesozoic metamorphic terrane (Chugach terrane) in the Fairweather Range, southeastern Alaska. The intrusion is 12 km wide and 27 km long, and has an exposed cumulate layering thickness of about 6000 m. The contact consists of biotite and hornblende...
Late Holocene ice wedges near Fairbanks, Alaska, USA: Environmental setting and history of growth
T. D. Hamilton, T. A. Ager, S.W. Robinson
1983, Arctic and Alpine Research (15) 157-168
Test trenches excavated into muskeg near Fairbanks in 1969 exposed a polygonal network of active ice wedges. The wedges occur in peat that has accumulated since about 3500 yr BP and have grown episodically as the permafrost table fluctuated in response to fires, other local site conditions and perhaps regional...
Preliminary results of potassium-argon age determinations from the Ugashik quadrangle, Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Frederic H. Wilson, Nora B. Shew
1982, Circular 844
Early and preliminary results of potassiumargon dating work on samples from 12 sites in the Ugashik quadrangle indicate a continuation of the geologic trends seen in the Chignik and Sutwik Island quadrangles to the south (Wilson, 1980). Tertiary volcanic and hypabyssal rocks apparently fall into two age groups: early Tertiary-late...
Apparent episodicity of magmatic activity based on radiometric age determination: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Frederic H. Wilson, Nora B. Shew
1982, Circular 844
Results of recent potassium-argon age studies in the Chignik region, Alaska, (Wilson, 1980; Wilson and others, 1982) have suggested a distinct episodicity in igneous activity during Tertiary time. To date work on the Aleutian magmatic arc indicates that plutonic activity took place along the present outer Pacific margin and in...
Aeromagnetic survey of the Chignik and Sutwik Island quadrangles: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
James E. Case, Dennis P. Cox, David E. Detra, Robert L. Detterman, Frederic H. Wilson
1982, Circular 844
The recently completed aeromagnetic survey of the Chignik and Sutwik Island quadrangles, on the Alaska Peninsula, is one of the most detailed systematic surveys ever made across a modern "volcanic arc" setting where both Holocene volcanic edifices and older volcanic centers occur (fig. 54)....
Reconnaissance geochemical studies in the Bristol Bay, Ugashik, and Karluk quadrangles, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
David E. Detra, Robert L. Detterman, Dennis P. Cox, Frederic H. Wilson, Ted G. Theodore
1982, Circular 844
Geochemical reconnaissance studies in the Bristol Bay, Ugashik, and Karluk quadrangles were completed with collection and analyses of more than 1,200 stream-sediment and heavy mineral-concentrate samples during 1979 and 1980. At least two areas of possible metallic mineral occurrence have been delineated by results of the analyses, geologic fieldwork, and...
Radiometric age file for Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1980
Nora B. Shew, Frederic H. Wilson
1982, Circular 844
The Alaska radiometric age file of the Branch of Alaskan Geology is a computer-based compilation of radiometric dates from the state of Alaska and the western parts of the Yukon Territory and British Columbia. More than 1800 age determinations from over 250 references have been entered in the file. References...
Predation on seabirds by red foxes at Shaiak Island, Alaska
Margaret R. Petersen
1982, Canadian Field-Naturalist (96) 41-45
Two Red Foxes (Vulpes fulva) that invaded Shaiak Island before the 1976 nesting season had a marked impact on the nesting success of five of seven species of seabirds breeding on the island that year. Common Eiders (Somateria mollissima), Glaucous-winged Gulls (Larus glaucescens), and Common Murres (Uria aalge), that nest...
Geological interpretation of cone penetrometer tests in Norton Sound, Alaska
M. A. Hampton, H.J. Lee, R.M. Beard
1982, Geo-Marine Letters (2) 223-230
In situ cone-penetrometer tests at 11 stations in Norton Sound, Alaska, complement previous studies of geologic processes and provide geotechnical data for an analysis of sediment response to loading. Assessment of the penetrometer records shows that various geologic factors influence penetration resistance. On the Yukon prodelta, penetration resistance increases with...
A workshop on raptor management and biology in Alaska and western Canada - A summary
Philip F. Schempf, Mark R. Fuller
Wilbur N. Ladd, Philip F. Schempf, editor(s)
1982, Conference Paper, Proceedings of a symposium and workshop: Raptor management and biology in Alaska and western Canada
A workshop on raptor management and biology in Alaska and western Canada was held on February 20, 1981, in Anchorage, Alaska. It was attended by about 50 biologists. The following twofold prime objective was established: (1) To prevent any raptor species from becoming extirpated in any significant part of its...
Methods to evaluate habitat use by raptors
M.R. Fuller, B.R. Noon, J. A. Mosher
Wilbur N. Ladd, P.F. Schempf, editor(s)
1982, Book, Proceedings of a Symposium and Workshop: Raptor Management and Biology in Alaska and Western Canada
Organochlorine residues in blood plasma of migrating peregrine falcons
Charles J. Henny, F.P. Ward, K.E. Riddle, R. M. Prouty
Wilbur N. Ladd, P.F. Schempf, editor(s)
1982, Book chapter, Proceedings of a Symposium and Workshop: Raptor Management and Biology in Alaska and Western Canada
Analyses of rock, stream sediment, and heavy-mineral concentrate samples from the Valdez Quadrangle, Alaska
R. J. Miller, G. R. Winkler, R. M. O’Leary, E.F. Cooley
1982, Open-File Report 82-451
Stratiform zinc-lead deposits in the Drenchwater Creek area, Howard Pass Quadrangle, northwestern Brooks Range, Alaska
W. J. Nokleberg, G. R. Winkler
1982, Professional Paper 1209
Geologic map of the Nabesna B-5 quadrangle, Alaska
P.C. Lowe
1982, Geologic Quadrangle 1566
Habitat suitability index models: Cutthroat trout
Terry J. Hickman, Robert F. Raleigh
1982, FWS/OBS 82/10.5
Cutthroat trout, Salmo clarki, are a polytypic species consisting of several geographically distinct forms with a broad distribution and a great amount of genetic diversity (Hickman 1978; Behnke 1979). Behnke (1979) recognized 13 extant subspecies: Coastal cutthroat (S. c. clarki) in coastal streams from Prince William Sound, Alaska to the...
Geological Survey research 1981
Water Resources Division, U.S. Geological Survey
1982, Professional Paper 1275
This U.S. Geological Survey activities report includes a summary of 1981 fiscal year scientific and economic results accompanied by a list of geologic, hydrologic, and cartographic investigations in progress. The summary of results includes: (1) Mineral, (2) Water resources, (3) Engineering geology and hydrology, (4) Regional geology, (5) Principles and...
Composite magnetic anomaly map of the United States; Part B, Alaska and Hawaii
1982, Open-File Report 82-970
No abstract available....
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1982
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
1982, Open-File Report 82-300-J
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory;...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: November 1982
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
1982, Open-File Report 82-300-K
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory;...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, December 1982
J.B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence
1982, Open-File Report 82-300-L
Organochlorine residues in eggs of Alaskan seabirds
Harry M. Ohlendorf, James C. Bartonek, George J. Divoky, Erwin E. Klaas, Alexander J. Krynitsky
1982, Special Scientific Report - Wildlife 245
Synthesis report; environmental geology of Kodiak Shelf, Alaska
M. A. Hampton
1982, Open-File Report 82-59
Preliminary map showing reconnaissance photogeologic interpretation of SLAR imagery of the Bristol Bay, Ugashik, and Karluk quadrangles, Alaska
Nairn Albert
1982, Open-File Report 82-141
No abstract available....
