Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

11370 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 130, results 3226 - 3250

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Appendix C: Summary of Major Metallogenic Belts in Northeast Asia (the Russian Far East, Yakutia, Siberia, Transbaikalia, Northern China, Mongolia, South Korea, and Japan)
Sergey M. Rodionov, Alexander A. Obolenskiy, Elimir G. Distanov, Gombosuren Badarch, Gunchin Dejidmaa, Duk-Hwan Hwang, Alexander I. Khanchuk, Masatsugu Ogasawara, Warren J. Nokleberg, Leonid M. Parfenov, Andrei V. Prokopiev, Zhan V. Seminskiy, Alexander P. Smelov, Hongquan Yan, Yuriy Davydov, Valeriy Yu. Fridovskiy, Gennandiy N. Gamyanin, Ochir Gerel, Alexei V. Kostin, Sergey A. Letunov, Xujun Li, Valeriy M. Nikitin, Vladimir V. Ratkin, Vladimir I. Shpikerman, Sadahisa Sudo, Vitaly I. Sotnikov, Alexander V. Spiridonov, Vitaly A. Stepanov, Fengyue Sun, Jiapeng Sun, Weizhi Sun, Valeriy M. Supletsov, Vladimir F. Timofeev, Oleg A. Tyan, Valeriy G. Vetluzhskikh, Koji Wakita, Yakov V. Yakovlev, Lydia M. Zorina
2010, Professional Paper 1765-C
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Introduction, Chapter 1 in Metallogenesis and tectonics of northeast Asia
Leonid M. Parfenov, Gombosuren Badarch, Nikolai A. Berzin, Duk-Hwan Hwang, Alexander I. Khanchuk, Mikhail I. Kuzmin, Warren J. Nokleberg, Alexander A. Obolenskiy, Masatsugu Ogasawara, Andrei V. Prokopiev, Sergey M. Rodionov, Alexander P. Smelov, Hongquan Yan
2010, Professional Paper 1765-1
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Methodology of a combined regional metallogenic and tectonic analysis for northeast Asia, Chapter 2 in Metallogenesis and tectonics of northeast Asia
Warren J. Nokleberg, Thomas K. Bundtzen, Kenneth M. Dawson, Roman A. Eremin, Nikolai A. Goryachev, Alexander I. Khanchuk, James W.H. Monger, Alexander A. Obolenskiy, Leonid M. Parfenov, Andrei V. Prokopiev, Vladimir V. Ratkin, Sergey M. Rodionov, Vladimir I. Shpikerman
2010, Professional Paper 1765-2
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Mineral-deposit models for northeast Asia, Chapter 3 in Metallogenesis and tectonics of northeast Asia
Alexander A. Obolenskiy, Sergei M. Rodionov, Sodov Ariunbileg, Gunchin Dejidmaa, Elimir G. Distanov, Dangindorjiin Dorjgotov, Ochir Gerel, Duk-Hwan Hwang, Fengyue Sun, Ayurzana Gotovsuren, Sergei N. Letunov, Xujun Li, Warren J. Nokleberg, Masatsugu Ogasawara, Zhan V. Seminsky, Akexander P. Smelov, Vitaly I. Sotnikov, Alexander A. Spiridonov, Lydia V. Zorina, Hongquan Yan
2010, Professional Paper 1765-3
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Archean through Mesoproterozoic metallogenesis and tectonics of northeast Asia, Chapter 4 in Metallogenesis and tectonics of northeast Asia
Alexander P. Smelov, Hongquan Yan, Vladimir F. Timofeev, Andrei V. Prokopiev, Warren J. Nokleberg
2010, Professional Paper 1765-4
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Metallogenesis and Tectonics of Northeast Asia
Warren J. Nokleberg, editor(s)
2010, Professional Paper 1765
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Neoproterozoic through Silurian metallogenesis and tectonics of northeast Asia, Chapter 5 in Metallogenesis and tectonics of northeast Asia
Nikolai A. Berzin, Elimir G. Distanov, Onongyn Tomurtogoo, Vladimir F. Timofeev, Andrei V. Prokopiev, Warren J. Nokleberg
2010, Professional Paper 1765-5
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Devonian through early Carboniferous (Mississippian) metallogenesis and tectonics of northeast Asia, Chapter 6 in Metallogenesis and tectonics of northeast Asia
Gombosuren Badarch, Gunchin Dejidmaa, Ochir Gerel, Alexander A. Obolenskiy, Andrei V. Prokopiev, Vladimir F. Timofeev, Warren J. Nokleberg
2010, Professional Paper 1765-6
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Late Carboniferous through early Jurassic metallogenesis and tectonics of northeast Asia, Chapter 7 in Metallogenesis and tectonics of northeast Asia
Sergey Dril, Alexander I. Khanchuk, Alexander A. Obolenskiy, Masatsugu Ogasawara, Sergey M. Rodionov, Vitaly I. Sotnikov, Alexander M. Spiridonov, Zhan V. Seminsky, Vladimir F. Timofeev, Andrei V. Prokopiev, Warren J. Nokleberg
2010, Professional Paper 1765-7
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Middle Jurassic through Quaternary metallogenesis and tectonics of northeast Asia, Chapter 8 in Metallogenesis and tectonics of northeast Asia
Sergey M. Rodionov, Alexander I. Khanchuk, Alexander A. Obolenskiy, Masatsugu Ogasawara, Zhan V. Seminskiy, Andrei V. Prokopiev, Vladimir F. Timofeev, Warren J. Nokleberg
2010, Professional Paper 1765-8
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Tectonic and metallogenic model for northeast Asia, Chapter 9 in Metallogenesis and tectonics of northeast Asia
Leonid M. Parfenov, Nikolai A. Berzin, Gombosuren Badarch, Valentina G. Belichenko, Alexander N. Bulgatov, Sergey I. Dril, Alexander I. Khanchuk, Galina L. Kirillova, Mikhail I. Kuz'min, Warren J. Nokleberg, Masatsugu Ogasawara, Alexander A. Obolenskiy, Andrei V. Prokopiev, Sergey M. Rodionov, Christopher R. Scotese, Vladimir F. Timofeev, Onongyn Tomurtogoo, Hongquan Yan
2010, Professional Paper 1765-9
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Appendix A: Description of the Northeast Asia Project and Associated Products
Warren J. Nokleberg, Leonid M. Parfenov, Alexander I. Khanchuk, Mikhail I. Kuzmin, Alexander A. Obolenskiy, Andrei V. Prokopiev, Sergey M. Rodionov, Alexander P. Smelov, Gombosuren Badarch, Hongquan Yan, Duk-Hwan Hwang, Masatsugu Ogasawara
2010, Professional Paper 1765-A
The major purposes of this chapter are to provide (1) an overview of the regional geology, tectonics, and metallogenesis of Northeast Asia for readers who are unfamiliar with the region, (2) a general scientific introduction to the succeeding chapters of this volume, and (3) an overview of the methodology of...
Glacier microseismicity
Michael E. West, Christopher F. Larsen, Martin Truffer, Shad O’Neel, Laura LeBlanc
2010, Geology (38) 319-322
We present a framework for interpreting small glacier seismic events based on data collected near the center of Bering Glacier, Alaska, in spring 2007. We find extremely high microseismicity rates (as many as tens of events per minute) occurring largely within a few kilometers of the receivers. A high-frequency class...
Volcano-Monitoring Instrumentation in the United States, 2008
Marianne Guffanti, Angela K. Diefenbach, John W. Ewert, David W. Ramsey, Peter F. Cervelli, Steven P. Schilling
2010, Open-File Report 2009-1165
The United States is one of the most volcanically active countries in the world. According to the global volcanism database of the Smithsonian Institution, the United States (including its Commonwealth of the Northern Mariana Islands) is home to about 170 volcanoes that are in an eruptive phase, have erupted in...
Vegetation of eastern Unalaska Island, Aleutian Islands, Alaska
Stephen S. Talbot, Wilfred B. Schofield, Sandra L. Talbot, Fred J.A. Daniels
2010, Botany (88) 366-388
Plant communities of Unalaska Island in the eastern Aleutian Islands of western Alaska, and their relationship to environmental variables, were studied using a combined Braun-Blanquet and multivariate approach. Seventy relevés represented the range of structural and compositional variation in the matrix of vegetation and landform zonation. Eleven major community types...
Vulnerability of white spruce tree growth in interior Alaska in response to climate variability: Dendrochronological, demographic, and experimental perspectives
A. David McGuire, Roger W. Ruess, A. Lloyd, J. Yarie, Joy S. Clein, G.P. Juday
2010, Canadian Journal of Forest Research (40) 1197-1209
This paper integrates dendrochronological, demographic, and experimental perspectives to improve understanding of the response of white spruce (Picea glauca (Moench) Voss) tree growth to climatic variability in interior Alaska. The dendrochronological analyses indicate that climate warming has led to widespread declines in white spruce growth throughout interior Alaska that have...
Behaviour of wintering Tundra Swans Cygnus columbianus columbianus at the Eel River delta and Humboldt Bay, California, USA
Jeffrey M. Black, Carol Gress, Jacob W. Byers, Emily Jennings, Craig R. Ely
2010, Wildfowl (60) 38-51
Tundra Swan Cygnus columbianus columbinanus phenology and behaviour at the Eel River delta and southern Humboldt Bay in northern California, USA, is described. Counts made each January from 1963 onwards peaked at 1,502 swans in 1988. Monthly counts recorded during the 2006/07 and 2008/09 winters peaked in February, at 1,033...
Historic and paleo-submarine landslide deposits imaged beneath Port Valdez, Alaska: Implications for tsunami generation in a glacial fiord
H. F. Ryan, H. J. Lee, Peter J. Haeussler, C. R. Alexander, Robert E. Kayen
David C. Mosher, R. C. Shipp, Lorena Moscardelli, Jason Chaytor, Christopher D. P. Baxter, Homa J. Lee, Roger Urgeles, editor(s)
2010, Book chapter, Submarine mass movements and their consequences
During the 1964 M9.2 great Alaskan earthquake, submarine-slope failures resulted in the generation of highly destructive tsunamis at Port Valdez, Alaska. A high-resolution, mini-sparker reflection profiler was used to image debris lobes, which we attribute to slope failures that occurred both during and prior to the 1964 megathrust event. In...
Beak deformities in Northwestern Crows: Evidence of a multispecies epizootic
Caroline R. Van Hemert, Colleen M. Handel
2010, The Auk (127) 746-751
Beak abnormalities are rare among adult birds and, typically, are not widespread in a given population, within a region, or across multiple species. A high concentration of beak deformities was recently documented in Black-capped Chickadees (Poecile atricapillus) and other resident avian species in Alaska. We describe a parallel condition in...
Iceberg calving during transition from grounded to floating ice: Columbia Glacier, Alaska
Fabian Walter, Shad O’Neel, Daniel McNamara, W.T. Pfeffer, Jeremy N. Bassis, Helen Amanda Fricker
2010, Geophysical Research Letters (37)
The terminus of Columbia Glacier, Alaska, unexpectedly became ungrounded in 2007 during its prolonged retreat. Visual observations showed that calving changed from a steady release of low-volume bergs, to episodic flow-perpendicular rifting, propagation, and release of very large icebergs - a style reminiscent of calving from ice shelves. Here, we...
Population structure and plumage polymorphism: the intraspecific evolutionary relationships of a polymorphic raptor, Buteo jamaicensis harlani
Joshua M. Hull, David P. Mindell, Sandra L. Talbot, Emily H. Kay, Hopi E. Hoekstra, Holly B. Ernest
2010, BMC Evolutionary Biology (10)
Background Phenotypic and molecular genetic data often provide conflicting patterns of intraspecific relationships confounding phylogenetic inference, particularly among birds where a variety of environmental factors may influence plumage characters. Among diurnal raptors, the taxonomic relationship of Buteo jamaicensis harlani to other B. jamaicensis subspecies has been long debated because of the polytypic nature of the...
Iceberg calving as a primary source of regional‐scale glacier‐generated seismicity in the St. Elias Mountains, Alaska
Shad O’Neel, Christopher F. Larsen, Natalia Rupert, Roger Hansen
2010, Journal of Geophysical Research F: Earth Surface (115)
Since the installation of the Alaska Regional Seismic Network in the 1970s, data analysts have noted nontectonic seismic events thought to be related to glacier dynamics. While loose associations with the glaciers of the St. Elias Mountains have been made, no detailed study of the source locations has been undertaken....
Persistent organic pollutants in the blood of free-ranging sea otters (Enhydra lutris ssp.) in Alaska and California
David A. Jessup, Christine K. Johnson, James Estes, Daphne Carlson-Bremer, Walter M. Jarman, Stacey Reese, Erin Dodd, M. T. Tinker, Michael H. Ziccardi
2010, Journal of Wildlife Diseases (46) 1214-1233
As part of tagging and ecologic research efforts in 1997 and 1998, apparently healthy sea otters of four age-sex classes in six locations in Alaska and three in California were sampled for persistent organic pollutants (POPs) and other chemicals of ecologic or environmental concern (COECs). Published techniques for the detection...
Are inland wolf-ungulate systems influenced by marine subsidies of Pacific salmon?
Layne G. Adams, Sean D. Farley, Craig A. Stricker, Dominic J. Demma, Gretchen H. Roffler, Dennis C. Miller, Robert O. Rye
2010, Ecological Applications (20) 251-262
Wolves (Canis lupus) in North America are considered obligate predators of ungulates with other food resources playing little role in wolf population dynamics or wolf–prey relations. However, spawning Pacific salmon (Oncorhyncus spp.) are common throughout wolf range in northwestern North America and may provide a marine subsidy affecting inland wolf–ungulate...