Coastal geomorphology of arctic Alaska
Peter W. Barnes, Stuart E. Rawlinson, Erk Reimnitz
1988, Technical Council on Cold Regions Engineering Monograph 3-30
The treeless, tundra-plain of northern Alaska merges with the Arctic Ocean along a coastal area characterized by low tundra bluffs, and sparse coastal and delta dunes. Coastal engineering projects that aggrade or degrade permafrost will alter the geomorphology and rates of coastal processes by changing coastal stability. Similarly, projects that...
An integrated approach for automated cover-type mapping of large inaccessible areas in Alaska
Michael D. Fleming
1988, Photogrammetric Engineering and Remote Sensing (54) 357-362
The lack of any detailed cover type maps in the state necessitated that a rapid and accurate approach to be employed to develop maps for 329 million acres of Alaska within a seven-year period. This goal has been addressed by using an integrated approach to computer-aided analysis which combines efficient...
Ocean plateau-seamount origin of basaltic rocks, Angayucham terrane, central Alaska
F. Barker, D. L. Jones, J. R. Budahn, P.J. Coney
1988, Journal of Geology (96) 368-374
The Angayucham terrane of north-central Alaska (immediately S of the Brooks Range) is a large (ca. 500 km E-W), allochthonous complex of Devonian to Lower Jurassic pillow basalt, diabase sills, gabbro plutons, and chert. The mafic rocks are transitional normal-to-enriched, mid-ocean-ridge (MORB) type tholeiites (TiO2 1.2-3.4%, Nb 7-23 ppm, Ta...
Columbia Bay, Alaska: An 'upside down' estuary
R. A. Walters, E.G. Josberger, C. L. Driedger
1988, Estuarine, Coastal and Shelf Science (26) 607-617
Circulation and water properties within Columbia Bay, Alaska, are dominated by the effects of Columbia Glacier at the head of the Bay. The basin between the glacier terminus and the terminal moraine (sill depth of about 22 m) responds as an ‘upside down’ estuary with the subglacial discharge of freshwater...
Colony attendance and population monitoring of Black-legged Kittiwakes on the Semidi Islands, Alaska
Scott A. Hatch, Martha A. Hatch
1988, The Condor (90) 613-620
Patterns of colony attendance in Black-legged Kittiwakes (Rissa tridactyla) were studied over 5 years on the Semidi Islands, western Gulf of Alaska. A census period of 50 days, extending from first egg laying through final hatching, was appropriate because counts made then were subject to the least amount of daily...
Littoral foraging by red phalaropes during spring in the northern Bering Sea
J. Christopher Haney, Amy E. Stone
1988, The Condor (90) 723-726
Phalaropes demonstrate considerable plasticity in their choice of foraging habitats. The Red Phalarope (Phalaropus fulicaria) alternates use of pelagic environments in winter and migration (Taning 1933, Stanford 1953, Briggs et al 1984) with wet tundra habitats during the breeding season (Kistchinski 1975, Mayfield 1979, Ridley 1980). Foods available and taken...
Seasonal occurrence of migrant whimbrels and bristle-thighed curlews on the Yukon-Kuskokwim Delta, Alaska
Colleen M. Handel, Christian P. Dau
1988, The Condor (90) 782-790
Migrant Whimbrels (Numenius phaeopus) and Bristle-thighed Curlews (N. tahitiensis) were recorded during five summers along coastal tundra of the Yukon-Kuskokwim Delta, Alaska. From June to September, 1975-1979, 358 flocks totalling 1,265 curlews were observed; an additional 54 flocks were identified by vocalization alone. Among the 359 flocks identified to species,...
Earthquakes, March-April 1988
W. J. Person
1988, Earthquakes & Volcanoes (USGS) (20) 167-171
There were two major earthquakes (7.0-7.9) during this reporting period. the first, a magnitude 7.6, was centered in the Gulf of Alaska on March 6 and the second, a magnitude 7.0, occurred near the coast of southern Peru on April 12. In the United States, the largest earthquake was the magnitude...
Early Cretaceous paleolatitude of the Yukon-Koyukuk province, Alaska
John W. Hillhouse, C. S. Grommé
1988, Journal of Geophysical Research Solid Earth (93) 11735-11752
We report results from a paleomagnetic study of the Yukon-Koyukuk province, a key region for reconstructing the Cretaceous paleogeography of northern Alaska and northeastern Asia. The province lies between the displaced continental fragment of Arctic Alaska and the accreted terranes of southern Alaska. Although Lower Cretaceous volcanogenic rocks of the...
Assessing the earthquake hazards in urban areas
W. W. Hays, P. L. Gori, W. J. Kockelman
1988, Earthquakes & Volcanoes (USGS) (20) 208-212
Major urban areas in widely scattered geographic locations across the United States are a t varying degrees of risk from earthquakes. the locations of these urban areas include Charleston, South Carolina; Memphis Tennessee; St.Louis, Missouri; Salt Lake City, Utah; Seattle-Tacoma, Washington; Portland, Oregon; and Anchorage, Alaska; even Boston, Massachusetts, and...
Factors influencing predation associated with visits to artificial goose nests
M. Michele Vacca, Colleen M. Handel
1988, Journal of Field Ornithology (59) 215-223
Artificial goose nests were used to determine what factors might increase predation after visits to nests of Cackling Canada Geese (Branta canadensis minima). We tested whether leaving the nest uncovered, marking the nest location with a flag, or placing the nest on an island or peninsula would increase the rate...
Bristle-thighed curlews, biologists, and bird tours - A place for all
Robert E. Gill Jr., B. J. McCaffery, T.G. Tobish
1988, Birding (20) 148-155
No abstract available....
Polar Bear
S.D. Amstrup, DeMaster
J.W. Lentfer, editor(s)
1988, Report, Selected marine mammals of Alaska: Species accounts with research and management recommendations, U. S. Marine Mammal Commission, Washington, D. C
Polar bears are long-lived, late-maturing carnivores that have relatively low rates of reproduction and natural mortality. Their populations are susceptible to disturbance from human activities, such as the exploration and development of mineral resources or hunting. Polar bear populations have been an important renewable resource available to coastal communities throughout...
Interactions between seabirds and fisheries in the North Pacific Ocean
Linda L. Jones, Anthony R. DeGange
Joanna Burger, editor(s)
1988, Book chapter, Seabirds & other marine vertebrates: Competition, predation, and other interactions
Interactions between commercial fisheries and seabirds in the northern Pacific Ocean are increasing with rising consumption of fishery products. As fishing expands into remote areas previously not fished, additional populations of seabirds may be affected. Some interactions such as introduction of fish processing wastes into the environment may be beneficial...
Hydrologic reconnaissance of the Chilkat River basin, Southeast Alaska; with special reference to the Alaska Chilkat Bald Eagle Preserve
E. F. Bugliosi
1988, Water-Resources Investigations Report 88-4023
The Chilkat River Basin of Alaska is characterized by glaciers, highly dissected mountains with steep-gradient streams, and braided rivers in broad, alluvium-filled valleys. Orographic effects and a wide seasonal range in temperature cause variations in the amount and distribution of precipitation, and thus in the resulting runoff and streamflow. Seeps...
Causes of varied sediment gravity flow types on the Alsek Prodelta, northeast Gulf of Alaska
William C. Schwab, Homa J. Lee, Bruce F. Molnia
1988, Marine Geotechnology (7) 317-342
Slope failures and subsequent mass movements have been identified in Holocene glaciomarine sediment on declivities less than 1.3° on the Alsek prodelta, Gulf of Alaska. Isolated collapse features cover less than 10 percent of a nearshore sand deposit, in water depths less than 40 m. In contrast, sediment gravity flow...
Geology and exploration of the National Petroleum Reserve in Alaska, 1974 to 1982
George Gryc, editor(s)
1988, Professional Paper 1399
No abstract available....
Anomalous radiocarbon ages from a Holocene detrital organic lens in Alaska and their implications for radiocarbon dating and paleoenvironmental reconstructions in the arctic
R.E. Nelson, L. D. Carter, S.W. Robinson
1988, Quaternary Research (29) 66-71
Eleven radiocarbon age determinations clearly show that a lens of Holocene fluvial organic debris on the Alaskan Arctic Coastal Plain contains mostly pre-Holocene organic material. Radio-carbon ages of identified plant macrofossils indicate the material was deposited about 9000 to 9500 yr B.P. Radiocarbon analyses of bulk samples from this deposit,...
Cycle of earthquake-induced aggradation and related tidal channel shifting, upper Turnagain Arm, Alaska, USA.
S. Bartsch-Winkler
1988, Sedimentology (35) 621-628
Aggradation of intertidal sediment in upper Turnagain Arm, a macrotidal estuary located in southern Alaska near Anchorage, began because of subsidence caused by sediment consolidation and tectonic lowering of the land during the earthquake of March 27, 1964. At the head of the Arm, decrease in percent sand of surface...
Intermediate-scale vegetation mapping of Innoko National Wildlife Refuge, Alaska using Landsat MSS digital data
Stephen S. Talbot, Carl J. Markon
1988, Photogrammetric Engineering and Remote Sensing (54) 377-383
A Landsat-derived vegetation map was prepared for lnnoko National Wildlife Refuge. The refuge lies within the northern boreal subzone of northwestern central Alaska. Six major vegetation classes and 21 subclasses were recognized: forest (closed needleleaf, open needleleaf, needleleaf woodland, mixed, and broadleaf); broadleaf scrub (lowland, upland burn regeneration, subalpine); dwarf...
Mineral and whole-rock compositions of seawater-dominated hydrothermal alteration at the Arctic volcanogenic massive sulfide prospect, Alaska
J.M. Schmidt
1988, Economic Geology (83) 822-842
The Arctic volcanogenic massive sulfide prospect, located in the Ambler mineral district of northwestern Alaska, includes three types of hydrothermally altered rocks overlying, underlying, and interlayered with semimassive sulfide mineralization. Hydrothermal alteration of wall rocks and deposition of sulfide and gangue minerals were contemporaneous with Late Devonian or Early Mississippian...
Summer production of coho salmon stocked in Mount St. Helens streams 3-6 years after the 1980 eruption
P.A. Bisson, J.L. Nielsen, J.W. Ward
1988, Transactions of the American Fisheries Society (117) 322-335
Deformation in the Yakataga seismic gap, Southern Alaska, 1980-1986
J.C. Savage, M. Lisowski
1988, Journal of Geophysical Research Solid Earth (93) 4731-4744
A 60-by-40-km trilateration network in the Yakataga seismic gap was surveyed in 1980, 1982, 1984, and 1986 with precise electro-optical distance-measuring equipment to measure strain accumulation. The overall deformation is roughly approximated by a 0.24±0.03 µstrain/yr N32°W±2.4° uniaxial contraction that is uniform in time. However, the spatial distribution of deformation...
Causes of two slope-failure types in continental-shelf sediment, northeastern Gulf of Alaska
William C. Schwab, Homa J. Lee
1988, Journal of Sedimentary Research (58) 1-11
Slumps and sediment-gravity flows have been identified in Holocene glaciomarine sediment on declivities less than 1.3 degrees on the Gulf of Alaska continental shelf. Geologic and geotechnical investigation suggest that the processes responsible for these slope failures are earthquake and storm-wave loading, coupled with cyclic degradation of the sediment-shear strength....
Applications of satellite telemetry to wildlife research and management in Alaska
S.G. Fancy, R.B. Harris, David C. Douglas, L.F. Pank, Kenneth R. Whitten, Thomas R. McCabe, Steven C. Amstrup, G.W. Garner
1988, Conference Paper, Acte du colloque international: Suivi des vertebres terrestres par radiotelemetrie
Since 1984, the Alaska Fish and Wildlife Research Center, in cooperation with the Alaska Department of Fish and Game and several other agencies, has used the Argos Data Collection and Location System to address wildlife research and management problems in Alaska and other parts of North America. The use of...
