Sub-sea temperatures and a simple tentative model for offshore permafrost at Prudhoe Bay, Alaska
Arthur H. Lachenbruch, B. Vaughn Marshall
1977, Open-File Report 77-395
In this report, we present temperatures measured in three holes drilled into the sea bed in the Prudhoe Bay region and a tentative interpretation of them in terms of the gross thermal regime and shoreline history of the area. The new holes (PB-1, PB-2, and PB-3, Figure 1) were drilled...
Channel erosion surveys along the TAPS route, Alaska, 1977
Robert M. Loeffler, Joseph M. Childers
1977, Open-File Report 78-611
Channel surveys were made along the trans-Alaska pipeline system (TAPS) route during 1977 at the same 28 sites that were studied in 1976. In addition, a new site at pipeline mile 22 near Deadhorse (alignment No 134) along the Sagavanirktok River was put under surveillance. Except for changes wrought by...
Digital processing of a 24 channel, single-fold seismic reflection line from Naval Petroleum Reserve No. 4, Alaska
B. A. Kososki, Robert C. Anderson
1977, Open-File Report 77-707
Map showing metalliferous and selected nonmetalliferous mineral deposits in eastern southern Alaska
E.M. MacKevett Jr., Carleen D. Holloway
1977, Open-File Report 77-169-A
No abstract available....
The United States Geological Survey in Alaska: Organization and status of programs in 1977
Kathleen M. Blean, editor(s)
1977, Circular 751-A
United States Geological Survey projects in Alaska include a wide range of topics of economic and scientific interest. Studies in 1976 include economic geology, regional geology, stratigraphy, environmental geology, engineering geology, hydrology, and marine geology. Discussions of the findings or, in some instances, narratives of the course of the investigations...
Map showing metalliferous mineral deposits in the western part of southern Alaska
E.M. MacKevett Jr., Carleen D. Holloway
1977, Open-File Report 77-169-F
No abstract available....
Study of heavy minerals from Tertiary rocks at Capps Glacier and adjacent areas, southern Alaska
John Stewart Kelley
1977, Open-File Report 77-502
Shelled benthic fauna of the eastern Chukchi Sea
Dennis M. Mann
1977, Open-File Report 77-672
The purposes of this study were to identify the benthic shelled infauna and epifauna of the eastern Chukchi Sea, compile species lists and distribution maps, determine recurrent groups of species (communities), and examine the environmental parameters that may control the distribution of the faunal groups. The study was partly supported...
Map and table describing known metalliferous and selected nonmetalliferous mineral deposits in central Alaska
G. Donald Eberlein, R. M. Chapman, H.L. Foster, J. S. Gassaway
1977, Open-File Report 77-168-D
No abstract available....
Epithermal beryllium deposits in water-laid tuff, western Utah
David A. Lindsey
1977, Economic Geology (72) 219-232
Epithermal beryllium deposits in western Utah have distinctive geological and geochemical associations that provide guides to exploration for new resources of beryllium and associated metals. Beryllium deposits at Spor Mountain and the Honeycomb Hills are uniquely associated with topaz-bearing rhyolite of Late Tertiary age and are restricted to porous water-laid...
Spectacular mobility of ash flows around Aniakchak and Fisher calderas, Alaska
T. P. Miller, R.L. Smith
1977, Geology (5) 173-176
Ash flows around Aniakchak and Fisher calderas in the Aleutian volcanic arc show evidence of having flowed over formidable topographic barriers at distances of tens of kilometres from their source. Ash flows swept down glaciated valleys on the south side of Aniakchak caldera, crossed a broad lowland with an altitude...
Submarine seepage of natural gas in Norton Sound, Alaska
J.D. Cline, M.L. Holmes
1977, Science (198) 1149-1153
Unusual concentrations of dissolved two- to four-carbon alkanes were observed in the waters in Norton Sound in a localized area approximately 40 kilometers south of Nome, Alaska, in 1976. The hydrocarbons were identified in the near-bottom waters downcurrent for more than 100 kilometers from a sea-floor point source. Preliminary dynamic...
Tertiary and Quaternary deposits at The Palisades, central Alaska
Warren E. Yeend
1977, Journal of Research of the U.S. Geological Survey (5) 747-752
The Palisades of the Yukon River, located near the geographic center of Alaska, has long been an attraction to people traveling along the river. Numerous scientific field parties have viewed or visited the locality and published short accounts of their observations. The river bluffs are as much as 90 meters...
Benthic invertebrates in an arctic mountain stream, Brooks Range, Alaska
K. V. Slack, J. W. Nauman, L. J. Tilley
1977, Journal of Research of the U.S. Geological Survey (5) 519-527
A 1-day, late-summer reconnaissance of the Dietrich River, Alaska, determined species composition and diversity of benthic invertebrates and examined the correlation between stream order and invertebrate distribution. Benthic invertebrates were collected by dip net, drift net, and 10-rock collections, and results were combined for each station. Forty-nine taxa were identified...
Spherulitic rhyolite dike from Goat Island, southeastern Alaska
Walter R. Vennum, G. Donald Eberlein
1977, Journal of Research of the U.S. Geological Survey (5) 445-451
Spherulites, as much as 4 mm in diameter, locally constitute almost 50 percent by volume of a dark-red rhyolite dike that intrudes porphyritic pyroxene gabbro along the northeast coast of Goat Island, 3.2 km northwest of Hydaburg, southeastern Alaska. The largest spherulites are composed mainly of o-quartz, whereas the smallest...
A reconnaissance investigation of a large meromictic lake in southeastern Alaska
George A. McCoy
1977, Journal of Research of the U.S. Geological Survey (5) 319-324
Redoubt Lake is one of the largest documented meromictic lakes in North America. The chemocline extends in depth from 80 to 100 m (meters) and the steepest gradient is between 98 and 100 m. The monimolimnion is anoxic, contains hydrogen sulflde, and has a salinity about two-thirds that of seawater....
Metamorphic rocks of the Yakutat-St. Elias area, south-central Alaska
Travis Hudson, George Plafker, Donald L. Turner
1977, Journal of Research of the U.S. Geological Survey (5) 173-184
Metamorphic rocks in the Yakutat-St. Elias area range in grade from zeolite to amphibolite facies. Radiometric age determinations on selected metamorphic rocks have helped to identify two major metamorphic events, one in Late Cretaceous time that was characterized by penetrative deformation, and one in the Miocene Epoch that resulted in...
Intrusive rocks of the Yakutat-St. Elias area, south-central Alaska
Travis Hudson, George Plafker, Marvin A. Lanphere
1977, Journal of Research of the U.S. Geological Survey (5) 155-172
Twenty-three plutons, exposed over a total area of nearly 1200 km2, have been studied in the Alaska part of the St. Elias Mountains between long 138° and 141°W. Results of potassium-argon age determinations combined with field relations, petrography, and major- and trace-element chemistry suggest six major intrusive events: (1) late...
Sheeted dikes, gabbro, and pillow basalt in flysch of coastal southern Alaska
Russell G. Tysdal, J. E. Case, G. R. Winkler, S. H. B. Clark
1977, Geology (5) 377-383
A Paleocene to Eocene(?) mafic sequence of igneous rocks on Knight Island and a Cretaceous mafic and ultramafic sequence of the Resurrection Peninsula in coastal southern Alaska are characterized by pillow basalts, sheeted dikes, and gabbro intrusions. At both localities, pillow basalts are interbedded with flysch, and the gabbros intrude...
Table describing metalliferous mineral deposits in the western part of southern Alaska
Edward M. MacKevett
1977, Open-File Report 77-169-F
No abstract available....
Effects of the February 3, 1965, earthquake on Amchitka Island, Alaska
Leonard Meade Gard
1977, Report, Memorandum of Understanding
No abstract available....
Coastal processes and morphology of the Bering Sea coast of Alaska
A. H. Sallenger Jr., R. Hunter, J.R. Dingler
1977, Book chapter, Environmental assessment of the Alaskan continental shelf; Hazards; data management
Landslides
T. H. Nilsen
1977, Earthquake Information Bulletin (USGS) (9) 27-33
Landslides are frequent in areas where there is high seismicity and steep slopes. Landslides associated with earthquakes may cause as much damage as the initial ground shaking. They may also occur long after the earthquake. Some of the major earthquakes that have occurred during the past 15 years demonstrate the hazards...
Earthquakes: August-September 1976
W. J. Person
1977, Earthquake Information Bulletin (USGS) (9) 32-33
Destructive earthquakes continued to strike in many parts of the world during this period. The sparsely populated area of the New Hebrides Islands in the southwest Pacific was struck by a major earthquake (one with a magnitude between 7.0 and 7.9). A great earthquake (magnitude 8.0 or above) struck just...
Breeding avifauna of the south San Francisco Bay estuary
Robert E. Gill Jr.
1977, Western Birds (8) 1-12
San Francisco Bay represents one of the largest estuarine areas on the Pacific Coast of North America. Its open waters, tidal flats, tidal marshes and solar evaporation ponds provide critical foraging, resting and breeding habitat for migratory and resident birds. The avifauna of San Francisco Bay has received considerable attention;...
