W. D. Menzie, Helen Laura Foster
1978, Open-File Report 78-529-D
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Publication Extents
Not all publications have extents, not all extents are completely accuratePeter W. Barnes, David McDowell, Erk Reimnitz
1978, Open-File Report 78-730
Edward Huntington Cobb
1978, Open-File Report 78-1062
These summaries of references are designed to aid in library research on metallic and nonmetallic (other than mineral fuels and construction materials) mineral occurrences in the Healy quadrangle, Alaska. References to most reports of the Geological Survey, the U.S. Bureau of Mines, and the State of Alaska Division of Geological...
Mark L. Holmes, Charles A. Meeder, Kenneth Clark Creager
1978, Open-File Report 78-368
A total of 88 unreversed sonobuoy refraction lines were shot over the continental shelf and slope near Kodiak, Alaska, in 1976 and 1977. Useful results were obtained from 59 of these attempts. The field measurements were carried out aboard the USGS research vessel SAMUEL P. LEE. The refraction lines were...
Warren O. Addicott
1978, Journal of Research of the U.S. Geological Survey (6) 677-689
A fauna of bivalve mollusks, scattered gastropods, and an echinoid from exposures of the Skonun Formation in the northeastern part of Graham Island is indicative of an early late Miocene age and correlation with the provincial Wishkahan Stage. The molluscan assemblages are from the upper 600 of the 1800-m-thick marine...
Anna Hietanen, Richard C. Erd
1978, Journal of Research of the U.S. Geological Survey (6) 603-609
In the Feather River area, California, and in the McGrath quadrangle, Alaska, axinite-bearing veins occur as fracture fillings along or near the fault zones, suggesting that boron was introduced along the fractures. An unusual occurrence of axinite as a possible primary constituent of a plutonic rock is in the Russian...
Baerbel K. Lucchitta
1978, GSA Bulletin (89) 1601-1609
A large landslide deposit on the south wall of Gangis Chasma contains at least 100 billion m3of material that moved 60 km across the trough floor at a speed of more than 100 km/hr. The deposit consists of slump blocks at the head, hummocky material farther out, and a vast...
K.C. Bayer, R.E. Mattick, T.R. Bruns, George Plafker
1978, Journal of Research of the U.S. Geological Survey (6) 625-636
Results of five seismic refraction lines shot by the U.S. Geological Survey in the Gulf of Alaska between Icy Bay and Kayak Island indicate the following: (1) The Continental Shelf is underlain by as much as 11 km of sedimentary rock of probable Tertiary age where refraction velocities range from 1.2 to 5.5 kilometers per...
W. W. Patton Jr., T. P. Miller
1978, Science (201) 279-279
No abstract available....
D.M. Hopkins, M.L. Silberman
1978, Journal of Research of the U.S. Geological Survey (6) 435-438
Potassium-argon ages from basement granitic rocks that intrude serpentinized peridotite on St. George Island, Alaska, range from 50 to 57 million years, with an initial argon isochron age. interpreted as a minimum figure, of 52 ± 2 m.y. The age of the granitic rocks and their association with serpentinized peridotite...
C.A. Simenstad, J. A. Estes, K.W. Kenyon
1978, Science (200) 403-411
Reexamination of stratified faunal components of a prehistoric Aleut midden excavated on Amchitka Island, Alaska, indicates that Aleut prey items changed dramatically during 2500 years of aboriginal occupation. Recent ecological studies in the Aleutian Islands have shown the concurrent existence of two alternate stable nearshore communities, one dominated by macroalgae,...
David A. Brew, A. B. Ford
1978, Canadian Journal of Earth Sciences (15) 1763-1772
The Coast Range megalineament is a prominent, nearly continuous topographic and structural feature that extends southeastward about 550 km (330 mi) from its junction with the Chatham Strait – Lynn Canal fault at Point Sherman to Tongass Passage near the mouth of Pearse Canal where it leaves southeastern Alaska. It probably extends...
J. M. Hoare, W. L. Coonrad
1978, Journal of Research of the U.S. Geological Survey (6) 193-201
The shape, composition, structure, and location of a conspicuous flat-topped mountain in the lower Togiak Valley, southwest Alaska, all indicate that it formed by a subglacial volcanic eruption of olivine basalt. Volcanoes of this type are known as "tuyas." The Togiak tuya erupted into an intraglacial lake in a hole...
C. Hans Nelson, Keith A. Kvenvolden, Edward C. Clukey
1978, Conference Paper
A plume of hydrocarbon gases, assumed to be of thermogenic origin based on chemical compositions, has been noted by others in the water column of Norton Sound about 40 km south of Nome, Alaska. We used detailed geophysical transects, side-scan sonar, underwater television, and chromatographic analyses of gases in near-surface...
J.R. Hein, D.W. Scholl, J. Miller
1978, Science (199) 137-141
Earlier workers have overlooked deep-sea bentonite beds when unraveling the Cenozoic volcanic history of an area. In the North Pacific, identification of Miocene and older volcanic episodes is possible only if both altered (bentonite) and unaltered ash beds are recognized. Our study, which includes bentonite beds, shows that volcanism on...
Helen M. Beikman
1978, Report
No abstract available....
David A. Brew
1978, Report
No abstract available....
A. H. Sallenger Jr., J.R. Dingler, R. E. Hunter
1978, Book chapter, Environmental assessment of the Alaskan continental shelf: annual reports of principal investigators for the year ending March 1978
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...
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...
M. Wyss
1978, Earthquake Information Bulletin (USGS) (10) 165-168
Changes in sea level have long been used as a measure of local uplift and subsidence associated with large earthquakes. For instance, in 1835, the British naturalist Charles Darwin observed that sea level dropped by 2.7 meters during the large earthquake in Concepcion, CHile. From this piece of evidence and...
Kendell A. Dickinson, John A. Campbell
1978, Open-File Report 78-757
No abstract available....
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....
Richard D. Koch, Raymond L. Elliott
1978, Open-File Report 78-156-C
No abstract available....
David William Scholl
1978, Open-File Report 78-422
The Geological Survey's marine geology investigations in the Pacific-Arctic area are presented in this report in the context of the underlying socio-economic problem of expanding the domestic production of oil and gas and other mineral and hard- and soft-rock resources while maintaining acceptable standards in the marine environment. The primary...