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Page 266, results 6626 - 6650

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Publication Extents

Not all publications have extents, not all extents are completely accurate
The eruption of Redoubt Volcano, Alaska, December 14, 1989-August 31, 1990
Thomas J. Casadevall, Bernard A. Chouet, John N. Davies, Steven A. Estes, Cynthia A. Gardner, Richard P. Hoblitt, John C. Lahr, Richard G. Lahusen, Jon J. Major, Robert G. McGimsey, Thomas P. Miller, Thomas L. Murray, Christina A. Neal, Christopher J. Nye, Robert A. Page, Thomas C. Pierson, John Power, Christopher D. Stephens, Richard B. Waitt
Steven R. Brantley, editor(s)
1990, Circular 1061
No abstract available....
Comparative toxicity of inorganic contaminants released by placer mining to early life stages of salmonids
Kevin J. Buhl, Steven J. Hamilton
1990, Ecotoxicology and Environmental Safety (20) 325-342
The acute toxicities of four trace inorganics associated with placer mining were determined, individually and in environmentally relevant mixtures, to early life stages of Arctic grayling (Thymallus arcticus) from Alaska and Montana, coho salmon (Oncorhynchus kitsutch) from Alaska and Washington, and rainbow trout (Oncorhynchus mykiss) from Montana. The descending rank...
The Denali fault system and Alaska Range of Alaska: Evidence for underplated Mesozoic flysch from magnetotelluric surveys
W. D. Stanley, Victor F. Labson, Warren J. Nokleberg, Bela Csejtey Jr., M. A. Fisher
1990, GSA Bulletin (102) 160-173
Regional magnetotelluric surveys recently completed across the central and eastern Alaska Range of Alaska provide evidence for large volumes of conductive rocks beneath the core of the range. These conductive rocks may represent a formerly extensive, but now collapsed, Mesozoic flysch basin formed on the leading edge of the Talkeetna...
Geophysics at Katmai: Geophysical expedition to Novarupta Volcano, Katmai National Park, Alaska
John C. Eichelberger, S. Ballard, Charles R. Carrigan, A. Goodliffe, W. Hildreth, E.Y. Iwatsubo, P. W. Kasameyer, T. E. C. Keith, Juergen Kienle, J. J. Papike, D. D. Pollard, D.B. Stone, P. C. Wallmann, P.L. Ward, M. Wilt, M. E. Yount
1990, Eos, Transactions, American Geophysical Union (71) 733-736
The great eruption of 1912 in the Aleutian Range of Alaska (Figure 1) is exceptional for both its size and relative simplicity. It was the largest eruption of this century and the largest rhyolitic outburst in almost 20 centuries. The 60-hour, 30-km3 (ejecta volume) eruption produced extensive fallout deposits, an ash-flow...
Eocene diatom chert from Adak Island, Alaska
James R. Hein, Hseuh-Wen Yeh, John A. Barron
1990, Journal of Sedimentary Petrology (60) 250-257
Bedded quartz cherts that contain recognizable diatoms are rare in the geologic record and are described here for the first time. The Eocene Andrew Lake Formation on Adak Island, Alaska consists of about 800 m of sedimentary and volcanogenic rocks. Quartz cherts containing diatoms occur in the upper part of...
Thermal regime of permafrost in Alaska and predicted global warming
T.E. Osterkamp, A.H. Lachenbruch
1990, Journal of Cold Regions Engineering (4) 38-42
The mean surface temperature of permafrost in Alaska has warmed locally as much as 4° C during the last century although some areas show little or no indication of a warming or cooling. There is evidence for a recent cooling, since 1983, south of Prudhoe Bay to the Brooks Range....
Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska
Paul R. Carlson, Terry R. Bruns, Michael A. Fisher
Julian A. Dowdeswell, James Scourse, editor(s)
1990, Book chapter, Glacimarine environments: Processes and sediments
Morphological, seismic-reflection, and sedimentological evidence indicates that glacial ice tongues cut large sea valleys into the Gulf of Alaska continental shelf during the Pleistocene. During the Holocene, glacially-derived sediments from the Copper River and other meltwater streams have been prograding seaward across the shelf, covering the glacial and glacimarine upper...
Development of slope valleys in the glacimarine environment of a complex subduction zone, Northern Gulf of Alaska
Paul R. Carlson, Terry R. Bruns, Michael A. Fisher
1990, Book chapter, Glacimarine environments: Processes and sediments
Morphological, seismic-reflection, and sedimentological evidence indicates that glacial ice tongues cut large sea valleys into the Gulf of Alaska continental shelf during the Pleistocene. During the Holocene, glacially-derived sediments from the Copper River and other meltwater streams have been prograding seaward across the shelf, covering the glacial and glacimarine upper...
Site 765: Sediment Lithostratigraphy
Leg 123 Shipboard Scientific Party
1990, Proceedings of the Ocean Drilling Program: Initial Reports (123) 76-94
A 935-m-thick succession of Quaternary through Lower Cretaceous sediments was recovered at Site 765 (Fig. 10). A single core of Quaternary sediment was obtained from Hole 765A; drilling terminated and a new hole was drilled in an attempt to establish the mud line. Quaternary through middle Miocene sediments were cored...
Site 765: Sedimentology
Leg 123 Shipboard Scientific Party
1990, Proceedings of the Ocean Drilling Program: Initial Reports (123) 113
Various techniques were used to decipher the sedimentation history of Site 765, including Markov chain analysis of facies transitions, XRD analysis of clay and other minerals, and multivariate analysis of smear-slide data, in addition to the standard descriptive procedures employed by the shipboard sedimentologist. This chapter presents brief summaries of...
Procedures and rationale for marking sea otters captured and treated during the T/V Exxon Valdez oil spill
A.R. DeGange, T.D. Williams
Keith Bayha, Jennifer Kormendy, editor(s)
1990, Biological Report 90(12)
Four methods were used for marking sea otters (Enhydra lutris) captured and treated during the response to the T/V Exxon Valdez oil spill. Colored and numbered flipper tags were placed on each sea otter that was brought to the otter treatment centers. These tags allowed individual recognition and permitted the...
Site 766
Leg 123 Shipboard Scientific Party
1990, Proceedings of the Ocean Drilling Program: Initial Reports (123) 269-352
No abstract available....
Tracking wildlife by satellite: Current systems and performance
Richard B. Harris, Steven G. Fancy, David C. Douglas, Gerald W. Garner, Steven C. Amstrup, Thomas R. McCabe, Larry F. Pank
1990, Fish and Wildlife Technical Report 30
Since 1984, the U.S. Fish and Wildlife Service has used the Argos Data Collection and Location System (DCLS) and Tiros-N series satellites to monitor movements and activities of 10 species of large mammals in Alaska and the Rocky Mountain region. Reliability of the entire system was generally high. Data were...
Incubation rhythm in the Fulmar Fulmarus glacialis: Annual variation and sex roles
Scott A. Hatch
1990, Ibis (132) 515-524
I monitored the incubation schedules of Fulmars Fulmarus glacialis in an Alaskan colony by observing nests where the male and female were of different colour phases. Complete shifts of up to 16 days were recorded; the average shift in mid-incubation was 4–6 days. Mean shift length was inversely correlated with...
Sediment thickness in the southern Canada Basin
S. D. May, A. Grantz
1990, Marine Geology (93) 331-347
Multichannel seismic reflection data are used, in conjunction with deep crustal seismic refraction data, to estimate the thickness of sediments in the southern Canada Basin of the Arctic Ocean north of Alaska. The sediments are interpreted to be of Hauterivian (mid-Early Cretaceous)...
Evidence against a late Wisconsinan ice shelf in the Gulf of Maine
R. N. Oldale, R.S. Williams Jr., Steven M. Colman
1990, Quaternary Science Reviews (9) 1-13
Proposals for the formation of a late Wisconsinan ice shelf in the Gulf of Maine during the retreat of the Laurentide Ice Sheet are considered to be inappropriate. An Antarctic-type ice shelf does not fit the field data that indicate temperate glacial, terrestrial, and marine climates for the region between...
Evaluation of gases, condensates, and SO2 emissions from Augustine volcano, Alaska: the degassing of a Cl-rich volcanic system
R.B. Symonds, William I. Rose Jr., T.M. Gerlach, Paul H. Briggs, R.S. Harmon
1990, Bulletin of Volcanology (52) 355-374
After the March-April 1986 explosive eruption a comprehensive gas study at Augustine was undertaken in the summers of 1986 and 1987. Airborne COSPEC measurements indicate that passive SO2 emission rates declined exponentially during this period from 380??45 metric tons/day (T/D) on 7/24/86 to 27??6 T/D on 8/24/87. These data are...
Eruptions of Mount St. Helens : Past, present, and future
Robert I. Tilling, Lyn J. Topinka, Donald A. Swanson
1990, Report
Mount St. Helens, located in southwestern Washington about 50 miles northeast of Portland, Oregon, is one of several lofty volcanic peaks that dominate the Cascade Range of the Pacific Northwest; the range extends from Mount Garibaldi in British Columbia, Canada, to Lassen Peak in northern California. Geologists call Mount St....