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Short-term velocity measurements at Columbia Glacier, Alaska: August-September 1984
B. H. Vaughn, C. F. Raymond, Lowell A. Rasmussen, D. S. Miller, C. A. Michaelson, M. F. Meier, R. M. Krimmel, A. G. Fountain, W. W. Dunlap, C. S. Brown
1985, Open-File Report 85-487
Ice velocity data are presented for the lower reach of Columbia Glacier, Alaska. The data span a 29 day period and contain 1,072 angle sightings from two survey stations to 22 markers placed on the ice surface, and 1,621 laser measurements of the distance to one of those markers (number...
National Pesticide Monitoring Program: Residues of organochlorine chemicals in freshwater fish, 1980–81
Christopher J. Schmitt, James L. Zajicek, M. A. Ribick
1985, Archives of Environmental Contamination and Toxicology (14) 225-260
The U.S. Fish and Wildlife Service analyzed residues of organochlorine chemicals in 315 composite samples of whole fish collected in 1980–81 from 107 stations nationwide as part of the National Pesticide Monitoring Program (NPMP). The mean concentrations of total DDT and allp,p′-ho-mologs exceptp,p′-DDT showed significant but...
The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula
Frederic H. Wilson
1985, Alaska Division of Geological & Geophysical Surveys Professional Reports DGGS PR 88
The Meshik arc is herein defined to include Eocene to earliest Miocene volcanic and hypabyssal rocks and the associated Meshik and Stepovak Formations of the central Alaska Peninsula. Igneous rocks range from basalt to dacite and yielded K-Ar ages of 48 to 22 m.y. The Meshik arc is oriented along...
Landsat-faciliated vegetation classification of the Kenai National Wildlife Refuge and adjacent areas, Alaska
Stephen S. Talbot, M.B. Shasby, T.N. Bailey
1985, Conference Paper, Pecora 10 Symposium
A Landsat-based vegetation map was prepared for Kenai National Wildlife Refuge and adjacent lands, 2 million and 2.5 million acres respectively. The refuge lies within the middle boreal sub zone of south central Alaska. Seven major classes and sixteen subclasses were recognized: forest (closed needleleaf, needleleaf woodland, mixed);...
Interim program for land cover mapping in Alaska utilizing Landsat digital data
Mark Shasby, David Carneggie, Leonard Gaydos, Katherine Fitzpatrick-Lins, Donald Lauer, Vincent Ambrosia, Susan Benjamin
1985, Conference Paper, Pecora 10 Symposium
The enactment of the Alaska National Interest Lands Conservation Act (ANILCA) in 1980 imposed mandates on all major land management agencies in Alaska to prepare comprehensive resource and management plans to assess wildlife habitat, oil and gas exploration and development, wild and scenic river, land disposals, timber production, and archaeological...
Origin and tectonic evolution of the Maclaren and Wrangellia terranes, eastern Alaska Range, Alaska
Warren J. Nokleberg, D. L. Jones, Norman J. Silberling
1985, GSA Bulletin (96) 1251-1270
Major portions of the eastern Alaska Range, south of the Denali fault, in the McCarthy, Nabesna, Mount Hayes, and eastern Healy quadrangles, consist predominantly of the Maclaren and Wrangellia tectono-stratigraphic terranes. The Maclaren terrane consists of the Maclaren Glacier metamorphic belt and the regionally deformed and metamorphosed East Susitna batholith....
Geologic setting, petrology, and geochemistry of stratiform sphalerite-galena-barite deposits, Red Dog Creek and Drenchwater Creek areas, northwestern Brooks Range, Alaska
Ian M. Lange, Warren J. Nokleberg, J.T. Plahuta, H.R. Krouse, B. R. Doe
1985, Economic Geology (80) 1896-1926
Similar stratiform sphalerite-galena-barite deposits occur in the Red Dog Creek area, De Long Mountains quadrangle, and in the Drenchwater Creek area, Howard Pass quadrangle, northwestern Brooks Range, Alaska. The deposits, located approximately 180 km apart, are hosted by Mississippian and Pennsylvanian strata of the Kagvik structural sequence of late Paleozoic...
A reconnaissance of the major Holocene tephra deposits in the upper Cook Inlet region, Alaska
J.R. Riehle
1985, Journal of Volcanology and Geothermal Research (26) 37-74
The upper Cook Inlet region of southcentral Alaska would be significantly impacted by a major tephrafall, owing to a widespread population and heavily travelled transportation corridors. To evaluate the likelihood of such an occurrence, the tephra deposits of the region have been inventoried. Approximately 90 deposits of Holocene age are...
Earthquakes March-April 1985
W. J. Person
1985, Earthquake Information Bulletin (USGS) (17) 193-198
There were two major earthquakes (7.0-7.9) during this reporting period-both were in Chile and both caused fatalities. Earthquake-related deaths were also reported from the Philippine Islands, Bolivia, and China. In the United States a strong earthquake occurred in Alaska on March 9 and a magntidue 6.3 earthquake occurred off the coast...
Processes on a glacier-dominated coast, Alaska
Bruce F. Molnia
1985, Zeitschrift fur Geomorphologie, Supplementband (57) 141-153
The 500 km long Gulf of Alaska coastline between Cape Suckling and Cape Spencer can be characterized by constant rapid change in an environment of glaciers, stormy climate, high relief, and extreme oceanographic parameters. During a more than 200-year history of observation, bays have completely filled with sediment, new bays...
Summary of data on the age of the Orca Group, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1984
George Plafker, Gerta Keller, Steven W. Nelson, Julie A. Dumoulin, Marti L. Miller
1985, Circular 967
The Orca Group is a widespread, thick, complexly deformed accretionary sequence of flysch and tholeiitic basalt in the Prince William Sound area (Winkler, 1976; Winkler and Plafker, 1981) (fig. 49). Despite a number of extensive field studies of the Orca Group, reliable data on the age of the unit have...
DATA ACQUISITION AND APPLICATIONS OF SIDE-LOOKING AIRBORNE RADAR IN THE U. S. GEOLOGICAL SURVEY.
John Edwin Jones, Allan N. Kover
1985, Conference Paper, Technical Papers of the American Society of Photogrammetry, Annual Meeting
The Side-Looking Airborne Radar (SLAR) program encompasses a multi-discipline effort involving geologists, hydrologists, engineers, geographers, and cartographers of the U. S. Geological Survey (USGS). Since the program began in 1980, more than 520,000 square miles of aerial coverage of SLAR data in the conterminous United States and Alaska have been...
Early Tertiary marine fossils from northern Alaska: Implications for Arctic Ocean paleogeography and faunal evolution
L. Marincovich Jr., E. M. Brouwers, L. D. Carter
1985, Geology (13) 770-773
Marine mollusks and ostracodes indicate a post-Danian Paleocene to early Eocene (Thanetian to Ypresian) age for a fauna from the Prince Creek Formation at Ocean Point, northern Alaska, that also contains genera characteristic of the Cretaceous and Neogene-Quaternary. The life-association of heterochronous taxa...
Estimating neighborhood variability with a binary comparison matrix.
D.L. Murphy
1985, Photogrammetric Engineering and Remote Sensing (51) 667-674
A technique which utilizes a binary comparison matrix has been developed to implement a neighborhood function for a raster format data base. The technique assigns an index value to the center pixel of 3- by 3-pixel neighborhoods. The binary comparison matrix provides additional information not found in two other neighborhood...