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Glacier-volcano interactions in the north crater of Mt. Wrangell, Alaska
Carl Abston, Roman J. Motyka, Stephen McNutt, Martin Luthi, Martin Truffer
2007, Annals of Glaciology (45) 48-57
Glaciological and related observations from 1961 to 2005 at the summit of Mt Wrangell (62.008 N, 144.028W; 4317 m a.s.l.), a massive glacier-covered shield volcano in south-central Alaska, show marked changes that appear to have been initiated by the Great Alaska Earthquake (MW = 9.2) of 27 March 1964. The...
Activity budgets derived from time-depth recorders in a diving mammal
James L. Bodkin, Daniel H. Monson, George G. Esslinger
2007, Journal of Wildlife Management (71) 2034-2044
We describe a method to convert continuously collected time–depth data from archival time–depth recorders (TDRs) into activity budgets for a benthic-foraging marine mammal. We used data from 14 TDRs to estimate activity-specific time budgets in sea otters (Enhydra lutris) residing near Cross Sound, southeast Alaska, USA. From the TDRs we...
Use of the Beaufort Sea by king eiders breeding on the North Slope of Alaska
Laura M. Phillips, A.N. Powell, E.J. Taylor, E.A. Rexstad
2007, Journal of Wildlife Management (71) 1892-1898
We estimated areas used by king eiders (Somateria spectabilis) in the Alaskan Beaufort Sea, how distributions of used areas varied, and characteristics that explained variation in the number of days spent at sea, to provide regulatory agencies with baseline data needed to minimize impacts of potential offshore oil development. We...
Chemical data for rock, sediment, biological, precipitate, and water samples from abandoned copper mines in Prince William Sound, Alaska
Randolph A. Koski, LeeAnn Munk
2007, Open-File Report 2007-1359-A-D
In the early 20th century, approximately 6 million metric tons of copper ore were mined from numerous deposits located along the shorelines of fjords and islands in Prince William Sound, Alaska. At the Beatson, Ellamar, and Threeman mine sites (fig. 1), rocks containing Fe, Cu, Zn, and Pb sulfide minerals...
Digital mapping techniques '06 - Workshop proceedings
David R. Soller, editor(s)
2007, Open-File Report 2007-1285
The Digital Mapping Techniques '06 (DMT'06) workshop was attended by more than 110 technical experts from 51 agencies, universities, and private companies, including representatives from 27 state geological surveys (see Appendix A of these Proceedings). This workshop was similar in nature to the previous nine meetings, which were held in...
Sedimentology and sequence stratigraphy of the Lower Cretaceous Fortress Mountain and Torok Formations exposed along the Siksikpuk River, North-Central Alaska
David W. Houseknecht, Christopher J. Schenk, Marwan A. Wartes
2007, Professional Paper 1739-D
An exposure of the Lower Cretaceous Fortress Mountain and Torok Formations along the Siksikpuk River in north-central Alaska provides a rare opportunity to observe the stratigraphic contact between these two formations and to interpret the depositional facies and sequence stratigraphy of the exposed strata. The Fortress Mountain Formation at the...
Stratigraphy and facies of Cretaceous Schrader Bluff and Prince Creek Formations in Colville River Bluffs, North Slope, Alaska
Romeo M. Flores, Mark D. Myers, David W. Houseknecht, Gary D. Stricker, Donald W. Brizzolara, Timothy J. Ryherd, Kenneth I. Takahashi
2007, Professional Paper 1748
Stratigraphic and sedimentologic studies of facies of the Upper Cretaceous rocks along the Colville River Bluffs in the west-central North Slope of Alaska identified barrier shoreface deposits consisting of vertically stacked, coarsening-upward parasequences in the Schrader Bluff Formation. This vertical stack of parasequence deposits represents progradational sequences that were affected...
Sentinel Hill Core Test 1: Facies descriptions and stratigraphic reinterpretations of the Prince Creek and Schrader Bluff Formations, North Slope, Alaska
Romeo M. Flores, Gary D. Stricker, Paul L. Decker, Mark D. Myers
2007, Professional Paper 1747
The Sentinel Hill Core Test 1 well penetrated an intertonguing sequence of (1) the marine Schrader Bluff Formation in the depth intervals 950–1,180 ft and 690–751 ft, which consists of shoreface and offshore deposits that accumulated along a storm-dominated, barred shoreline; and (2) the nonmarine Prince Creek Formation in...
Regional Fluid Flow and Basin Modeling in Northern Alaska
Robert A. Ayuso, Robert Burruss, Julie A. Dumoulin, Garth E. Graham, Anita G. Harris, Craig A. Johnson, Karen D. Kelley, David L. Leach, Paul G. Lillis, Erin E. Marsh, Thomas E. Moore, Christopher J. Potter, John F. Slack
Karen D. Kelley, editor(s)
2007, Circular 1319
The foothills of the Brooks Range contain an enormous accumulation of zinc (Zn) in the form of zinc sulfide and barium (Ba) in the form of barite in Carboniferous shale, chert, and mudstone. Most of the resources and reserves of Zn occur in the Red Dog deposit and others...
A Compilation of Gas Emission-Rate Data from Volcanoes of Cook Inlet (Spurr, Crater Peak, Redoubt, Iliamna, and Augustine) and Alaska Peninsula (Douglas, Fourpeaked, Griggs, Mageik, Martin, Peulik, Ukinrek Maars, and Veniaminof), Alaska, from 1995-2006
Michael P. Doukas, Kenneth A. McGee
2007, Open-File Report 2007-1400
INTRODUCTION This report presents gas emission rates from data collected during numerous airborne plume-measurement flights at Alaskan volcanoes since 1995. These flights began in about 1990 as means to establish baseline values of volcanic gas emissions during periods of quiescence and to identify anomalous levels of degassing that might signal the...
SAR measurements of surface displacements at Augustine Volcano, Alaska from 1992 to 2005
C.-W. Lee, Z. Lu, Oh-Ig Kwoun
2007, Conference Paper, International Geoscience and Remote Sensing Symposium (IGARSS)
Augustine volcano is an active stratovolcano located at the southwest of Anchorage, Alaska. Augustine volcano had experienced seven significantly explosive eruptions in 1812, 1883, 1908, 1935, 1963, 1976, and 1986, and a minor eruption in January 2006. We measured the surface displacements of the volcano by radar interferometry and GPS...
Water Quality in the Tanana River Basin, Alaska, Water Years 2004-06
Edward H. Moran
2007, Open-File Report 2007-1390
OVERVIEW This report contains water-quality data collected from 84 sites in Tanana River basin during water years 2004 through 2006 (October 2003 through September 2006) as part of a cooperative study between the U.S. Geological Survey (USGS) and Alaska Department of Environmental Conservation (ADEC) Alaska Monitoring and Assessment Program (AKMAP), supported...
Map and data for Quaternary faults and fault systems on the Island of Hawai'i
Eric C. Cannon, Roland Burgmann, Anthony J. Crone, Michael N. Machette, Richard L. Dart
2007, Open-File Report 2007-1284
Introduction This report and digitally prepared, GIS-based map is one of a series of similar products covering individual states or regions of United States that show the locations, ages, and activity rates of major earthquake-related features such as faults and fault-related folds. It is part of a continuing the effort to...
Mid-holocene sector collapse at Mount Spurr Volcano, South-Central Alaska
Christopher F. Waythomas
2007, Professional Paper 1739-C
Radiocarbon-dated volcanic mass-flow deposits on the southeast flank of Mount Spurr in south-central Alaska provide strong evidence for the timing of large-scale destruction of the south flank of the volcano by sector collapse at 4,769^ndash;4,610 yr B.P. The sector collapse created an avalanche caldera and produced an ~1-km3-volume clay-rich debris...
Blue Mountain and the Gas Rocks: Rear-arc dome clusters on the Alaska Peninsula
Wes Hildreth, Judith Fierstein, Andrew T. Calvert
2007, Professional Paper 1739-A
Behind the single-file chain of stratovolcanoes on the Alaska Peninsula, independent rear-arc vents for mafic magmas are uncommon, and for silicic magmas rarer still. We report here the characteristics, compositions, and ages of two andesite-dacite dome clusters and of several nearby basaltic units, all near Becharof Lake and 15 to...
Major- and Trace-Element Concentrations in Rock Samples Collected in 2006 from the Taylor Mountains 1:250,000-scale Quadrangle, Alaska
Edward P. Klimasauskas, Marti L. Miller, Dwight Bradley
2007, Open-File Report 2007-1386
Introduction The Kuskokwim mineral belt of Bundtzen and Miller (1997) forms an important metallogenic region in southwestern Alaska that has yielded more than 3.22 million ounces of gold and 400,000 ounces of silver. Precious-metal and related deposits in this region associated with Late Cretaceous to early Tertiary igneous complexes extend into...
Mining Claim Activity on Federal Land in the United States
J. Douglas Causey
2007, Data Series 290
Several statistical compilations of mining claim activity on Federal land derived from the Bureau of Land Management's LR2000 database have previously been published by the U.S Geological Survey (USGS). The work in the 1990s did not include Arkansas or Florida. None of the previous reports included Alaska because it is...
Great Basin Paleontological Bibliography
Robert B. Blodgett, Ning Zhang, Albert H. Hofstra, Jared R. Morrow
2007, Open-File Report 2006-1379
Introduction This work was conceived as a derivative product for 'The Metallogeny of the Great Basin' project of the Mineral Resources Program of the U.S. Geological Survey. In the course of preparing a fossil database for the Great Basin that could be accessed from the Internet, it was determined that a...
Supplemental materials for the analysis of capture-recapture data for polar bears in Western Hudson Bay, Canada, 1984-2004
Eric V. Regehr, Nicholas J. Lunn, Steven C. Amstrup, Ian Stirling
2007, Data Series 304
Regehr and others (2007, Survival and population size of polar bears in western Hudson Bay in relation to earlier sea ice breakup: Journal of Wildlife Management, v. 71, no. 8) evaluated survival in relation to climatic conditions and estimated population size for polar bears (Ursus maritimus) in western Hudson Bay,...
About the geologic map in the National Atlas of the United States of America
John C. Reed, Charles A. Bush
2007, Circular 1300
Introduction The geologic map in the National Atlas of the United States of America shows the age, distribution, and general character of the rocks that underlie the Nation, including Alaska, Hawaii, Puerto Rico, and the Virgin Islands (but excluding other small island possessions). (The National Atlas of the United States...
Water and sediment quality in the Yukon River and its tributaries between Atlin, British Columbia, Canada, and Eagle, Alaska, USA, 2004
Douglas R. Halm, Mark M. Dornblaser
2007, Open-File Report 2007-1197
The Yukon River basin is the fourth largest watershed in North America at 855,300 square kilometers (km2). Approximately 126,000 people live within the basin and depend on the Yukon River and its tributaries for drinking water, commerce, subsistence and recreational fish and game resources.Climate warming in the Arctic...
Chemical data for rock, sediment, biological, precipitate, and water samples from abandoned copper mines in Prince William Sound, Alaska
Randolph A. Koski, LeeAnn Munk
2007, Open-File Report 2007-1359
Introduction In the early 20th century, approximately 6 million metric tons of copper ore were mined from numerous deposits located along the shorelines of fjords and islands in Prince William Sound, Alaska. At the Beatson, Ellamar, and Threeman mine sites (fig. 1), rocks containing Fe, Cu, Zn, and Pb sulfide minerals...