Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest corner of Healy quadrangle, Alaska
Bela Csejtey Jr., W. H. Nelson, D.L. Jones, Norman J. Silberling, R. M. Dean, M.S. Morris, M. A. Lanphere, James G. Smith, M.L. Silberman
1978, Open-File Report 78-558-A
No abstract available....
Distribution and character of upper mesozoic subduction complexes along the west coast of North America
D.L. Jones, M. C. Blake Jr., E.H. Bailey, R. J. McLaughlin
1978, Tectonophysics (47) 207-222
Structurally complex sequences of sedimentary, volcanic, and intrusive igneous rocks characterize a nearly continuous narrow band along the Pacific coast of North America from Baja California, Mexico to southern Alaska. They occur in two modes: (1) as complexly folded but coherent sequences of graywacke and argillite that locally exhibit blueschist-grade...
Epigenetic mineralization and areas favorable for uranium exploration in Tertiary continental sedimentary rock in south-central Alaska: A preliminary report
Kendell A. Dickinson, John A. Campbell
1978, Open-File Report 78-757
No abstract available....
Analyses of stream-sediment samples from the Ketchikan quadrangle, southeastern Alaska
Richard D. Koch, Raymond L. Elliott
1978, Open-File Report 78-156-C
No abstract available....
Map showing zinc determined by atomic absorption in stream sediments, Ketchikan and Prince Rupert quadrangles, Alaska
Richard D. Koch, Raymond L. Elliott, M. J. Diggles
1978, Open-File Report 78-73-E
No abstract available....
New potassium-argon data on the age of mineralization and metamorphism in the Willow Creek mining district, southern Talkeetna Mountains, Alaska
Miles L. Silberman, Bela Csejtey Jr., James G. Smith, Marvin A. Lanphere, Frederic H. Wilson
1978, Circular 772-B
The now largely abandoned Willow Creek mining district, southern Talkeetna Mountains, Alaska, produced nearly $18,000,000 in gold and minor silver between 1909 and the early 1950's. Mineralized quartz veins, which contain gold and silver along with minor quantities of base metals (in pyrite, galena, chalcopyrite, sphalerite, molybdenite, and arsenopyrite), cut...
Sea otter predation and community organization in the western Aleutian Island, Alaska
J.E. Estes, N. S. Smith, J. F. Palmisano
1978, Ecology (59) 822-833
Predation by the sea otter (Enhydra lutris) limits epibenthic invertebrates, especially sea urchins (Strongylocentrotus polyacanthus), in turn allowing a luxuriant development of the macroalgal canopy. Where sea otters are abundant, sea urchins are small and scarce in shallow water, and the association of fleshy macroalgae apparently is regulated by competition....
Map showing geochemical distribution and abundance of silver in stream sediments and heavy mineral concentrates, Talkeetna Mountains quadrangle, Alaska
R.J. Miller, G.C. Curtin, Bela Csejtey Jr.
1978, Open-File Report 78-558-G
No abstract available....
Amplitude of foreshocks as a possible seismic precursor to earthquakes
A.G. Lindh
1978, Earthquake Information Bulletin (USGS) (10) 162-164
In recent years, we have made significant progress in being able to recognize the long-range pattern of events that precede large earthquakes. For example, in a recent issue of the Earthquake Information Bulletin, we saw how the pioneering work of S.A. Fedotov of the U.S.S.R in the Kamchatka-Kurile Islands region has...
Corynebacterial kidney disease: Egg transmission following iodophore disinfection
G.L. Bullock, H.M. Stuckey, D.M. Mulcahy
1978, Fish Health News (7) 51
Map showing geochemical distribution and abundance of molybdenum in stream sediments and heavy mineral concentrates, Talkeetna Mountains quadrangle, Alaska
R.J. Miller, G.C. Curtin, Bela Csejtey Jr.
1978, Open-File Report 78-558-K
No abstract available....
Arsenic in streams, stream sediments, and ground water, Fairbanks area, Alaska
Frederic H. Wilson, D. B. Hawkins
1978, Environmental Geology (2) 195-202
Arsenic concentrations of less than 5 ppb to as large as 1,260 ppb in stream waters and from 5 ppm to 4,000 ppm in stream sediments were found in the Pedro Dome-Cleary Summit area, Alaska. Waters from three of 20 wells sampled had arsenic concentrations exceeding the U.S. Public Health...
Lisburne Group (Mississippian and Pennsylvanian), potential major hydrocarbon objective of Arctic Slope, Alaska
Kenneth J. Bird, Clifton F. Jordan
1977, AAPG Bulletin (61) 1493-1512
The Lisburne Group, a thick carbonate-rock unit of Mississippian and Pennsylvanian age, is one of the most widespread potential reservoir-rock units in northern Alaska. A comprehensive review of the Lisburne in the subsurface of the eastern Arctic Slope indicates attractive reservoir characteristics in a favorable source and migration setting where...
Submarine faults and slides on the continental shelf, northern Gulf of Alaska
Paul R. Carlson, Bruce F. Molnia
1977, Marine Geotechnology (2) 275-290
Submarine faults and slides or slumps of Quaternary age are potential environmental hazards on the outer continental shelf (OCS) of the northern Gulf of Alaska. Most faults that approach or reach the seafloor cut strata that may be equivalent in age to the upper Yakataga Formation (Pliocene‐Pleistocene). Along several faults,...
Bird atlasing in the United States
Chandler S. Robbins
1977, Polish Ecological Studies (3) 325-328
Since the Breeding Bird Survey provides an annual quantitative sample of about 75% of the 1? blocks of latitude and longitude in every state except Alaska and Hawaii, and 47% of the 1/2? blocks (equivalent on the average to a 48 km square), no national Atlas based on merely presence...
Platinum, palladium, and rhodium in volcanic and plutonic rocks from the Gravina-Nutzotin belt, Alaska
Norman J. Page, Henry C. Berg, Joseph Haffty
1977, Journal of Research of the U.S. Geological Survey (5) 629-636
The Gravina-Nutzotin belt of Middle (?) Jurassic to middle Cretaceous sedimentary and volcanic rocks in south and southeastern Alaska includes concentrically zoned ultramafic complexes known to contain platinum-group metals. Previous isotopic, petrologic, and geologic studies suggested a close relation in time and space between the volcanic rocks and the ultramafic...
Rare earths, thorium, and other minor elements in sphene from some plutonic rocks in west-central Alaska
Mortimer H. Staatz, Nancy M. Conklin, Isabelle K. Brownfield
1977, Journal of Research of the U.S. Geological Survey (5) 623-628
Sphene is an abundant accessory mineral in some abnormally radioactive plutonic rocks in west-central Alaska. Seven samples of sphene from four different areas in west-central Alaska contained from 20350 to 39180 parts per million total rare earths and 390 to 2000 ppm thorium. The lanthanide content in six of the...
Structure and sediment distribution in the western Bering Sea
P.D. Rabinowitz, A. Cooper
1977, Marine Geology (24) 309-320
Eleven seismic reflection profiles across Shirshov Ridge and the adjacent deep-water sedimentary basins (Komandorsky and Aleutian Basins) are presented to illustrate the sediment distribution in the western Bering Sea. A prominent seismic reflecting horizon, Reflector P (Middle—Late Miocene in age), is observed throughout both the Aleutian and Komandorsky Basins at...
An oilspill risk analysis for the western Gulf of Alaska (Kodiak Island) Outer Continental Shelf lease area
James Richard Slack, Richard Allmon Smith, Timothy Wyant
1977, Open-File Report 77-212
An oilspill risk analysis was conducted to determine relative environmental hazards of developing oil in different regions of the Western Gulf of Alaska Outer Continental Shelf lease area. The study analyzed probability of spill occurrence, likely path of pollutants from spills, and locations in space and time of recreational and...
Some plutonic rocks of southwestern Alaska, a data compilation
Frederic H. Wilson
1977, Open-File Report 77-501
Combined Ice and Water Balances of Maclure Glacier, California, South Cascade Glacier, Washington, and Wolverine and Gulkana Glaciers, Alaska, 1967 Hydrologic Year
Wendell V. Tangborn, Lawrence R. Mayo, David R. Scully, Robert M. Krimmel
1977, Professional Paper 715-B
Combined ice and water balances were measured in the 1967 hydrologic year (October 1-September 30) on four glaciers in western North America ranging in latitude from 37 deg to 63 deg N. This hydrologic year was characterized by heavier than normal winter precipitation in California and Washington and abnormally dry...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: April 1977
J.B. Townshend, J.E. Papp, M.J. Moorman, C.E. Deadmon, S.P. Tilton
1977, Open-File Report 77-300-D
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;...
Artificial recharge experiments on the Ship Creek alluvial fan, Anchorage, Alaska
Gary S. Anderson
1977, Water-Resources Investigations Report 77-38
During the summers of 1973 and 1974, water from Ship Creek was diverted at an average rate of approximately 6 cubic feet per second to an 11-acre recharge basin. Maximum sustained unit recharge for the basin was approximately 1.4 feet per day. Dur-ing 1975 a second basin of 8 acres...
Water resources data for Alaska, water year 1976
Water Resources Division, U.S. Geological Survey
1977, Water Data Report AK-76-1
Geologic mapping in Alaska: U.S. Geological Survey, post-1930, scales 1:96,000 to 1:250,000
Susan B. Bartsch-Winkler
1977, Open-File Report 77-681
No abstract available....
