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: 3110
The United States Geological Survey in Alaska: Accomplishments during 1978 The United States Geological Survey in Alaska: Accomplishments during 1978
This circular describes the 1979 programs of the U.S. Geological Survey in Alaska. The mission of the Geological Survey is to identify the Nation 's land, water, energy, and mineral resources; to classify federally-owned mineral lands and water-power sites; to resolve the exploration and development of energy and natural resources on Federal and Indian lands; and to explore and appraise...
The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska The Alaskan Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Big Delta quadrangle, Alaska
The geology, geochemistry, geophysics, and Landsat imagery of the Big Delta quadrangle, 16,335 km 2 in the Yukon-Tanana Upland of east-central Alaska, were investigated, and maps and reports were prepared by an interdisciplinary research team for the purpose of assessing the mineral potential. The quadrangle is dominantly a complex terrane of greenschist- to amphibolitefacies metamorphic...
Authors
Helen Laura Foster, N. R. D. Albert, Andrew Griscom, T. D. Hessin, W. D. Menzie, D. L. Turner, Frederic H. Wilson
Nesting ecology of Arctic loons Nesting ecology of Arctic loons
Arctic Loons were studied on the Yukon-Kuskokwim Delta, Alaska, from the time of their arrival in May to their departure in September, in 1974 and 1975. Pairs arrived on breeding ponds as soon as sufficient meltwater was available to allow their take-off and landing. Loons apparently do not initiate nests immediately after their arrival, even when nest-sites are available. Delayed egg...
Authors
Margaret R. Petersen
Tufted Puffins nesting in estuarine habitat Tufted Puffins nesting in estuarine habitat
The Tufted Puffin (Lunda cirrhata) apparently has the most extensive breeding distribution of any North Pacific seabird, extending in the western North Pacific from Hokkaido to the north Chukotsk Peninsula on the Chukchi Sea, and in North America from Cape Lisburne on the Chukchi Sea, south to the Farallon Islands off central California (Udvardy 1963). Despite this wide breeding...
Authors
Robert E. Gill, Gerald A. Sanger
Yolk formation in some Charadriiform birds Yolk formation in some Charadriiform birds
By counting and measuring the major ova of breeding birds at autopsy and combining these data with time intervals between ovipositions, rough estimates have been made of the time required to form yolk in some non-captive birds (King 1973). Direct studies have been made in domestic fowl (Gallus gallus var. domesticus; Gilbert 1972), turkeys (Meleagris galloparvo; Bacon and Cherms 1968)...
Authors
T.E. Roudybush, C.R. Grau, Margaret R. Petersen, D. G. Ainley, K.V. Hirsch, A.P. Gilman, S.M. Patten
Preliminary geologic map of Alaska Preliminary geologic map of Alaska
No abstract available.
Authors
Helen M. Beikman
The United States Geological Survey in Alaska: Accomplishments during 1977 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...
Preliminary aeromagnetic map of the eastern part of southern Alaska Preliminary aeromagnetic map of the eastern part of southern Alaska
No abstract available.
Authors
John E. Decker, Susan M. Karl
Catalog of Alaskan seabird colonies Catalog of Alaskan seabird colonies
No abstract available.
Authors
Arthur L. Sowls, Scott A. Hatch, C. J. Len-Sink
New potassium-argon data on the age of mineralization and metamorphism in the Willow Creek mining district, southern Talkeetna Mountains, Alaska 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...
Authors
Miles L. Silberman, Bela Csejtey, James G. Smith, Marvin A. Lanphere, Frederic H. Wilson
Arsenic in streams, stream sediments, and ground water, Fairbanks area, Alaska 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...
Authors
Frederic H. Wilson, D. B. Hawkins