Tectonostratigraphic terrane and overlap assemblage map of Alaska
Warren J. Nokleberg, E.J. MollStalcup, T. P. Miller, D. A. Brew, Arthur Grantz, J. C. Reed Jr., George Plafker, Thomas E. Moore, S. R. Silva, W. W. Patton Jr.
1994, Open-File Report 94-194
Analytical results and sample locality maps of samples of the ash of dwarf arctic birch, black spruce, white spruce, and tamarack from the Medfra quadrangle, west-central Alaska
Harley D. King, D. A. Risoli, E.F. Cooley
1994, Open-File Report 94-277-A
Video of the August 18, 1992, eruption of Crater Peak vent on Spurr Volcano, Alaska
Robert G. McGimsey, Joseph M. Dorava
1994, Open-File Report 94-614
No abstract available. ...
Geologic studies in Alaska by the U.S. Geological Survey, 1993
Alison B. Till, Thomas E. Moore, editor(s)
1994, Bulletin 2107
This collection of 19 papers continues the annual series of U.S. Geological Survey reports on geologic investigations in Alaska. Contributions include 14 Articles and 5 shorter Geologic Notes that report results from all corners of the State.USGS activities in Alaska cover a broad spectrum of earth science topics, including the...
Analytical results and sample locality maps of samples of the ash of dwarf arctic birch, black spruce, white spruce, and tamarack from the Medfra quadrangle, west-central Alaska
Harley D. King, D. A. Risoli, E.F. Cooley
1994, Open-File Report 94-277-B
Mineral resource assessment of the Chugach National Forest special study area in northern Prince William Sound, Alaska
Steven W. Nelson, Marti L. Miller, R.J. Goldfarb, L.W. Snee, G. E. Sherman, C. H. Roe, M. D. Balen
1994, Open-File Report 94-272
No abstract available....
The Coast Mountains plutonic-metamorphic complex and related rocks between Haines, Alaska, and Fraser, British Columbia; tectonic and geologic sketches and Klondike Highway road log
David A. Brew, Arthur B. Ford
1994, Open-File Report 94-268
Paleontology of the Livengood quadrangle, Alaska
Florence R. Weber, R. B. Blodgett, A. G. Harris, J.T. Dutro Jr.
1994, Open-File Report 94-215
Systematic paleontology of Quaternary ostracode assemblages from the Gulf of Alaska; Part 3, Family Cytheruridae
E. M. Brouwers
1994, Professional Paper 1544
Forty-six species of podocopid ostracodes, most belonging to the Family Cytheruridae, are reported from Quaternary continental-shelf sediments of the Gulf of Alaska. Descriptions and illustrations are provided for 27 new species, 11 previously described species, and 8 species retained in open nomenclature. This report is based on 198 bottom grab...
Oceanic, shelf and coastal seabird assemblages at the mouth of a tidally-mixed estuary (Cook Inlet, Alaska)
John F. Piatt
1994, Report
No abstract available...
Greater White-fronted Goose (Anser albifrons)
Craig R. Ely, Alexander Dzubin
1994, The Birds of North America
No abstract available...
Buff-breasted Sandpiper (Calidris subruficollis)
Richard B. Lanctot, C.D. Laredo
1994, The Birds of North America
No abstract available...
Analysis of ERS 1 synthetic aperture radar data of frozen lakes in northern Montana and implications for climate studies
Dorothy K. Hall, Daniel B. Fagre, Fritz Klasner, Gregg Linebaugh, Glen E. Liston
1994, Journal of Geophysical Research (99) 1
Lakes that freeze each winter are good indicators of regional climate change if key parameters, such as freeze-up and breakup date and maximum ice thickness, are measured over a decade-scale time frame. Synthetic aperture radar (SAR) satellite data have proven to be especially useful for measurement of climatologically significant parameters...
Classification of vegetation communities in which geese rear broods on the Yukon-Kuskokwim Delta, Alaska
Christopher Babcock, Craig R. Ely
1994, Canadian Journal of Botany (72) 1294-1301
Plant communities are described from an area on the Yukon – Kuskokwim (Y-K) delta of Alaska that is used extensively for brood rearing by three species of geese. Earlier studies identified plant species important as food for young geese, but few studies describe or quantify plant communities. We classified species...
Phylogeny and evolution of the auks (subfamily Alcinae) based on mitochondrial DNA sequences
Truls Moum, Steinar Johansen, Kjell Einar Erikstad, John F. Piatt
1994, PNAS (91) 7912-7916
The genetic divergence and phylogeny of the auks was assessed by mitochondrial DNA sequence comparisons in a study using 19 of the 22 auk species and two outgroup representatives. We compared more than 500 nucleotides from each of two mitochondrial genes encoding 12S rRNA and the NADH dehydrogenase subunit 6....
Crustal velocity structure of the northern Yukon-Tanana upland, central Alaska: Results from TACT refraction/wide-angle reflection data
Bruce C. Beaudoin, Gary S. Fuis, William J. Lutter, Walter D. Mooney, Thomas E. Moore
1994, Bulletin (106) 981-1001
The Fairbanks North seismic refraction/ wide-angle reflection profile, collected by the U.S. Geological Survey Trans-Alaska Crustal Transect (TACT) project in 1987, crosses the complex region between the Yukon-Tanana and Ruby terranes in interior Alaska. This region is occupied by numerous small terranes elongated in a northeast-southwest direction. These seismic data...
Cytonuclear genetics of experimental fish hybrid zones inside Biosphere 2
K.T. Scribner, John C. Avise
1994, PNAS (91) 5066-5069
Two species of mosquitofish (family Poeciliidae) known to hybridize in nature were introduced into freshwater habitats inside Biosphere 2, and their population genetics were monitored after 2 years. Within four to six generations, nuclear and cytoplasmic markers characteristic of Gambusia holbrooki had risen greatly in frequency, although some Gambusia affinis...
Aftershocks of the 13 May 1993 Shumagin Alaska earthquake
Zhong Lu, Max Wyss, Guy Tytgat, Steve McNutt, Scott Stihler
1994, Geophysical Research Letters (21) 497-500
The 13 May 1993 Ms 6.9 Shumagin earthquake had an aftershock sequence of 247 earthquakes with magnitudes greater than or equal to 1.5 by 1 June 1993. Of these aftershocks, 79 were located by using S-P travel times at the only two stations within 570 km of the mainshock epicenter....
Strain accumulation in the Shumagin Islands: Results of initial GPS measurements
Kristine M. Larson, Michael Lisowski
1994, Geophysical Research Letters (21) 489-492
Deformation in the Shumagin seismic gap has been monitored with repeated trilateration (EDM) in the 1980–1987 interval and with the Global Positioning System (GPS) in the 1987–1991 interval. The geodetic network extends for 100-km across the Shumagin Islands to the Alaska Peninsula. Results from the GPS surveys are consistent with...
Late Pliocene paleoecologic reconstructions based on ostracode assemblages from the Sagavanirktok and Gubik formations, Alaskan North Slope
Elisabeth M. Brouwers
1994, Arctic (47) 16-33
Shallow-marine ostracode assemblages from upper Pliocene sediments of the upper part of the Sagavanirktok Formation and lower part of the Gubik Formation record the last warm period that occurred before the onset of significant cooling of the Arctic Ocean and the initiation of Northern Hemisphere continental glaciation. The informally named...
Structure, metamorphism, and geochronology of the Cosmos Hills and Ruby Ridge, Brooks Range schist belt, Alaska
Peter B. Christiansen, Lawrence W. Snee
1994, Tectonics (13) 193-213
The boundary of the internal zones of the Brooks Range orogenic belt (the schist belt) is a fault contact that dips toward the hinterland (the Yukon-Koyukuk province). This fault, here referred to as the Cosmos Hills fault zone, juxtaposes oceanic rocks and unmetamorphosed sedimentary rocks structurally above blueschist-to-greenschist facies metamorphic...
40Ar 39Ar age constraints on neogene sedimentary beds, Upper Ramparts, half-way Pillar and Canyon village sites, Porcupine river, east-central Alaska
Michael J. Kunk, H. Rieck, T. D. Fouch, L. David Carter
1994, Quaternary International (22-23) 31-42
40Ar/39Ar ages of volcanic rocks are used to provide numerical constraints on the age of middle and upper Miocene sedimentary strata collected along the Porcupine River. Intercalated sedimentary rocks north of latitude 67°10′N in the Porcupine terrane of east-central Alaska contain a rich record of plant fossils. The fossils are valuable...
Soil nitrogen availability in some arctic ecosystems in Northwest Alaska: responses to temperature and moisture
Dati Binkley, Robert Stottlemeyer, Frank Suarez, Jordi Cortina
1994, Écoscience (1) 64-70
No abstract available....
Earthquake damage to schools
Heather McCullough
1994, Report
These unusual slides show earthquake damage to school and university buildings around the world. They graphically illustrate the potential danger to our schools, and to the welfare of our children, that results from major earthquakes. The slides range from Algeria, where a collapsed school roof is held up...
Variation in mitochondrial DNA and allozymes discriminates early and late forms of Chinook salmon Oncorhynchus tshawytscha in the Kenai and Kasilof Rivers, AK
Noah S. Adams, William J. Spearman, Carl V. Burger, Kenneth P. Currens, Carl B. Schreck, Hiram W. Li
1994, Canadian Journal of Fisheries and Aquatic Sciences (51) 172-181
Genetic differences between early and late forms of Alaskan chinook salmon (Oncorhynchus tshawytscha) were identified using two genetic approaches: mitochondrial DNA (mtDNA) analysis, and protein electrophoresis. Study populations consisted of early and late runs in each of the Kenai and Kasilof rivers in Alaska, and a population from the Minam...
