Publications
USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.
Filter Total Items: 2892
Corynebacterial kidney disease: Egg transmission following iodophore disinfection
No abstract available.
Authors
G. L. Bullock, H. M. Stuckey, D.M. Mulcahy
Arsenic in streams, stream sediments, and ground water, Fairbanks area, Alaska
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 Service recommended limit of 50 ppb. The high arsenic levels are a consequence of arsenic enrichment in the rocks
Authors
Frederic H. Wilson, D. B. Hawkins
New potassium-argon data on the age of mineralization and metamorphism in the Willow Creek mining district, southern Talkeetna Mountains, Alaska
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 Late Cretaceous and early Tertiary to
Authors
Miles L. Silberman, Bela Csejtey, James G. Smith, Marvin A. Lanphere, Frederic H. Wilson
New ages on intrusive rocks and altered zones in the Alaska Peninsula: A section in The United States Geological Survey in Alaska: Accomplishments during 1977
Preliminary potassium-argon dating of intrusive rocks and altered zones in the Chignik and Sutwik Island quadrangles of the Alaska Peninsula seems to indicate at least three and possibly four Tertiary ages of alteration and mineralization.
Authors
Frederic H. Wilson, Robert L. Detterman, Miles L. Silberman
The United States Geological Survey in Alaska: Accomplishments during 1977
United States Geological Survey projects in Alaska study a wide range of topics of economic and scientific interest. Work done in 1977 includes contributions to economic geology, regional geology, stratigraphy, engineering geology, hydrology, and marine geology. Many maps and reports covering various aspects of the geology and mineral and water resources of the State were published. In addition, t
Unusual foraging by a fork-tailed storm-petrel
While conducting an offshore bird census from the sea beach at Nelson Lagoon, Alaska Peninsula (56°00'N, 161°10'W) at 1700 on 17 September 1976 1 saw a Fork-tailed Storm Petrel (Oceanodroma f. furcata) feeding on the beached remains of an adult gray whale (Eschrichtius robustus) that had been trapped by ice and died the previous April. I watched it for about 15 min. The sky was overcast with a 25-
Authors
Robert E. Gill
Breeding avifauna of the south San Francisco Bay estuary
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; however, little of it has been directed toward assessing the ove
Authors
Robert E. Gill
Geology and mineral resources of White Pine County, Nevada
No abstract available.
Authors
Richard K. Hose, M. Clark Blake
Radiocarbon dates from Alaska, Yukon Territory, and British Columbia
No abstract available.
Authors
Frederic H. Wilson, M. Springer Young
On the foraging and prey selection of nesting Caspian Terns
No abstract available.
Authors
Robert E. Gill
Radiometric age map of northern Alaska
This map includes published, thesis, and open-file radiometric data available to us as of June, 1975. Some dates are not plotted because of inadequate location data in the original references.The map is divided into five sections, based on 1:1,000,000 scale enlargements of the National Atlas maps of Alaska. Within each section (e.g., southeastern Alaska), radiometric dates are plotted and keyed to
Authors
Frederic H. Wilson, D. L. Turner