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Page 178, results 4426 - 4450

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Not all publications have extents, not all extents are completely accurate
Preliminary volcano-hazard assessment for Great Sitkin Volcano, Alaska
Christopher F. Waythomas, Thomas P. Miller, Christopher J. Nye
2003, Open-File Report 2003-112
Great Sitkin Volcano is a composite andesitic stratovolcano on Great Sitkin Island (51°05’ N latitude, 176°25’ W longitude), a small (14 x 16 km), circular volcanic island in the western Aleutian Islands of Alaska. Great Sitkin Island is located about 35 kilometers northeast of the community of Adak on Adak...
Mass balance, meteorology, area altitude distribution, glacier-surface altitude, ice motion, terminus position, and runoff at Gulkana Glacier, Alaska, 1996 balance year
Rod S. March
2003, Water-Resources Investigations Report 2003-4095
The 1996 measured winter snow, maximum winter snow, net, and annual balances in the Gulkana Glacier Basin were evaluated on the basis of meteorological, hydrological, and glaciological data. Averaged over the glacier, the measured winter snow balance was 0.87 meter on April 18, 1996, 1.1 standard deviation below the long-term...
Preliminary geologic map of Kanaga Volcano, Alaska
T. P. Miller, C. F. Waythomas, C.J. Nye
2003, Open-File Report 2003-113
Kanaga Volcano is a 1,300 m (4,287-foot) high, historically active cone-shaped stratovolcano located on the north end of Kanaga Island in the Andreanof Islands Group of the Aleutian Islands. The volcano is undissected, symmetrical in profile, and is characterized by blocky andesitic lava flows, with well-developed levees and steep flow...
Population genetic structure of Santa Ynez rainbow trout – 2001 based on microsatellite and mtDNA analyses
Jennifer L. Nielsen, Christian E. Zimmerman, Jeffrey B. Olsen, Talia Wiacek, E.J. Kretschmer, Glenn M. Greenwald, John K. Wenburg
2003, Report
Microsatellite allelic and mitochondrial DNA (mtDNA) haplotype diversity are analyzed in eight rainbow trout (Oncorhynchus mykiss) collections: two from tributaries flowing into the upper Santa Ynez River watershed at Gibraltar Reservoir (Camuesa and Gidney creeks); three from tributaries between Gibraltar and Jameson reservoirs (Fox, Blue Canyon, and Alder creeks); one...
Population status of Kittlitz's and Marbled Murrelets and surveys for other marine bird and mammal species in the Kenai Fjords area, Alaska
Thomas I. van Pelt, John F. Piatt
2003, Report
The Kittlitz's murrelet (Brachyramphus brevirostris) is a rare seabird that nests in alpine terrain and generally forages near tidewater glaciers during the breeding season. More than 95% of the global population breeds in Alaska, with the remainder occurring in the Russian Far East. A global population estimate using best-available data...
New mapping near Iron Creek, Talkeetna Mountains, indicates presence of Nikolai greenstone
Jeanine M. Schmidt, Melanie B. Werdon, Bruce R. Wardlaw
2003, Alaska Division of Geological & Geophysical Surveys Professional Reports DGGS PR 120-J
Detailed geologic mapping in the Iron Creek area, Talkeetna Mountains B-5 Quadrangle, has documented several intrusive bodies and rock units not previously recognized and has extended the geologic history of the area through the Mesozoic and into the Tertiary era. Greenschist-facies metabasalt and metagabbro previously thought to be Paleozoic are...
A genetic study to aid in restoration of murres, guillemots and murrelets to the Gulf of Alaska
Vicki L. Friesen, John F. Piatt
2003, Report
Genetic data are needed to aid in restoring several species of seabirds to the Gulf of Alaska. We analyzed sequence variation in mitochondrial DNA, microsatellite DNA and nuclear introns in samples of commom murres (Uria aalge), pigeon guillemots (Cepphus columba) and marbled murrelets (Brachyramphus marmoratus) from throughout the North Pacific....
Studies of Alaskan volcanoes using synthetic aperature radar and Landsat imagery
Russell P. Rykhus, Zhong Lu
2003, Conference Paper, Technology- Converging at the top of the world
Approximately 10 percent of the world’s active volcanoes are located in the Alaskan Aleutian arc and produce about 3-4 explosive eruptions per year. Even with this high amount of volcanic activity, the remote locations and harsh environments of the Aleutian volcanoes conspire to keep them among some of the most...
Alaska resource data file: Nabesna quadrangle
Travis L. Hudson
2003, Open-File Report 2003-446
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Alaska resource data file: McCarthy quadrangle
Travis L. Hudson
2003, Open-File Report 2003-404
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Alaska resource data file: Wiseman quadrangle
Joe M. Britton
2003, Open-File Report 2003-447
Descriptions of the mineral occurrences shown on the accompanying figure follow. See U.S. Geological Survey (1996) for a description of the information content of each field in the records. The data presented here are maintained as part of a statewide database on mines, prospects and mineral occurrences throughout Alaska....
Station corrections for the Katmai Region Seismic Network
Cheryl K. Searcy
2003, Open-File Report 2003-403
Most procedures for routinely locating earthquake hypocenters within a local network are constrained to using laterally homogeneous velocity models to represent the Earth's crustal velocity structure. As a result, earthquake location errors may arise due to actual lateral variations in the Earth's velocity structure. Station corrections can be used to...
Map of glacial limits and possible refugia in the southern Alexander Archipelago, Alaska, during the late Wisconsin glaciation
Paul E. Carrara, Thomas A. Ager, James F. Baichtal, D. Paco VanSistine
2003, Miscellaneous Field Studies Map 2424
During the late Wisconsin glaciation (circa 26,000-13,000 carbon-14 yr BP) the Cordilleran glacier complex formed vast ice fields and large glaciers along the crest of the Coast Mountains. As these glaciers flowed west to the Pacific Ocean, they were joined by local glaciers...
Geologic map of the Big Delta B-2 quadrangle, east-central Alaska
Warren C. Day, John N. Aleinikoff, Paul Roberts, Moira Smith, Bruce M. Gamble, Mitchell W. Henning, Larry P. Gough, Laurie C. Morath
2003, IMAP 2788
New 1:63,360-scale geologic mapping of the Big Delta B-2 quadrangle provides important data on the structural setting and age of geologic units, as well as on the timing of gold mineralization plutonism within the Yukon-Tanana Upland of east-central Alaska. Gold exploration has remained...
Alaskan North Slope petroleum systems
L. B. Magoon, P. G. Lillis, K. J. Bird, C. Lampe, K. E. Peters
2003, Open-File Report 2003-324
Six North Slope petroleum systems are identified, described, and mapped using oil-to-oil and oil-to-source rock correlations, pods of active source rock, and overburden rock packages. To map these systems, we assumed that: a) petroleum source rocks contain 3.2 wt. % organic carbon (TOC); b) immature oil-prone source rocks have hydrogen...
North Alaska petroleum system analysis: The regional map compilation
Richard W. Saltus, Kenneth J. Bird
2003, Open-File Report 2003-330
The U.S. Geological Survey initiated an effort to model north Alaskan petroleum systems. The geographic and geologic basis for modeling systems is provided by a set of regional digital maps that allow evaluation of the widest possible extent of each system. Accordingly, we laid out a rectangular map grid 1300...
Sandstone and shale compaction curves derived from sonic and gamma ray logs in offshore wells, North Slope, Alaska– Parameters for basin modeling
Elisabeth L. Rowan, Daniel O. Hayba, Philip H. Nelson, W. Matthew Burns, David W. Houseknecht
2003, Open-File Report 2003-329
Representative compaction curves for the principle lithologies are essential input for reliable models of basin history. Compaction curves influence estimates of maximum burial and erosion. Different compaction curves may produce significantly different thermal histories. Default compaction curves provided by basin modeling packages may or may not be a good proxy...
Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2002
James P. Dixon, Scott D. Stihler, John A. Power, Guy Tytgat, Seth C. Moran, John Sánchez, Steve Estes, Stephen R. McNutt, John Paskievitch
2003, Open-File Report 2003-267
The Alaska Volcano Observatory (AVO), a cooperative program of the U.S. Geological Survey, the Geophysical Institute of the University of Alaska Fairbanks, and the Alaska Division of Geological and Geophysical Surveys, has maintained seismic monitoring networks at historically active volcanoes in Alaska since 1988 (Power and others, 1993; Jolly and...