Unified Interior Regions

Region 11: Alaska

Alaska Science Center

Alaska Science Center

4210 University Drive
Anchorage, AK 99508
Phone: (907) 786-7000

View Center Website

Volcano Science Center

Volcano Science Center

4230 University Drive
Anchorage, AK 99508
Phone: (907) 786-7497

View Center Website

Climate Adaptation Science Center

Climate Adaptation Science Center

4230 University Drive
Anchorage, AK 99508
Phone: 907-301-7830

View Center Website

Regions L2 Landing Page Tabs

Filter Total Items: 2,370
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Year Published: 2009

Geologic and Geochronologic Studies of the Early Proterozoic Kanektok Metamorphic Complex of Southwestern Alaska

The Kanektok complex of southwestern Alaska appears to be a rootless terrane of early Proterozoic sedimentary, volcanic, and intrusive rocks which were metamorphosed to amphibolite and granulite facies and later underwent a pervasive late Mesozoic thermal event accompanied by granitic plutonism and greenschist facies metamorphism of overlying...

Turner, Donald L.; Forbes, Robert B.; Aleinikoff, John N.; McDougall, Ian; Hedge, Carl E.; Wilson, Frederic H.; Layer, Paul W.; Hults, Chad P.
Geologic and Geochronologic Studies of the Early Proterozoic Kanektok Metamorphic Complex of Southwestern Alaska; 2009; OFR; 2009-1248; Turner, Donald L.; Forbes, Robert B.; Aleinikoff, John N. McDougall, Ian; Hedge, Carl E.; Preface by: Wilson, Frederic H.; Layer, Paul W.; Hults, Chad P.

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Year Published: 2009

Late Glacial-Holocene Pollen-Based Vegetation History from Pass Lake, Prince of Wales Island, Southeastern Alaska

A radiocarbon-dated history of vegetation development since late Wisconsin deglaciation has been reconstructed from pollen evidence preserved in a sediment core from Pass Lake on Prince of Wales Island, southeastern Alaska. The shallow lake is in the south-central part of the island and occupies a low pass that was filled by glacial ice of local...

Ager, Thomas A.; Rosenbaum, Joseph G.
Late Glacial-Holocene Pollen-Based Vegetation History from Pass Lake, Prince of Wales Island, Southeastern Alaska; 2009; PP; 1760-G; Studies by the U.S. Geological Survey in Alaska, 2007; Ager, Thomas A.; Rosenbaum, Joseph G.

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Year Published: 2009

Geomorphology and river dynamics of the lower Copper River, Alaska

Located in south-central Alaska, the Copper River drains an area of more than 24,000 square miles. The average annual flow of the river near its mouth is 63,600 cubic feet per second, but is highly variable between winter and summer. In the winter, flow averages approximately 11,700 cubic feet per second, and in the summer, due to snowmelt,...

Brabets, Timothy P.; Conaway, Jeffrey S.
Geomorphology and River Dynamics of the Lower Copper River, Alaska; 2009; SIR; 2009-5257; Brabets, Timothy P.; Conaway, Jeffrey S.

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Year Published: 2009

Enumeration of Pacific walrus carcasses on beaches of the Chukchi Sea in Alaska following a mortality event, September 2009

On September 14, 2009, we encountered substantial numbers of fresh walrus carcasses on the Alaskan shores of the Chukchi Sea near Icy Cape. We enumerated 131 carcasses using geo-referenced strip transect photography and visual counts of solitary carcasses. All appeared to be young animals based on review of aerial photographs and reference to 12...

Fischbach, Anthony S.; Monson, Daniel H.; Jay, C.V.
Enumeration of Pacific Walrus Carcasses on Beaches of the Chukchi Sea in Alaska Following a Mortality Event, September 2009; 2009; OFR; 2009-1291; Fischbach, A. S.; Monson, D. H.; Jay, C. V.

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Year Published: 2009

Europium-rich dark monazite - a potential new ore mineral for Alaska, USA?

Tripp, Richard B.; Benzel, William M.; Adams, David T.; Lowers, Heather A.; Lee, Gregory K.; Bailey, Elizabeth A.

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Year Published: 2009

Application of the multi-dimensional surface water modeling system at Bridge 339, Copper River Highway, Alaska

The Copper River Basin, the sixth largest watershed in Alaska, drains an area of 24,200 square miles. This large, glacier-fed river flows across a wide alluvial fan before it enters the Gulf of Alaska. Bridges along the Copper River Highway, which traverses the alluvial fan, have been impacted by channel migration. Due to a major channel change in...

Brabets, Timothy P.; Conaway, Jeffrey S.
Application of the Multi-Dimensional Surface Water Modeling System at Bridge 339, Copper River Highway, Alaska; 2009; OFR; 2009-1237; Brabets, Timothy P.; Conaway, Jeffrey S.

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Year Published: 2009

Channel Incision and Water-Table Decline Along a Recently Formed Proglacial Stream, Mendenhall Valley, Southeastern Alaska

Retreat of the Mendenhall Glacier, in southeastern Alaska, resulted in the formation of Mendenhall Lake, which has reduced the supply of coarse sediment to the proglacial Mendenhall River. Channel geometry surveys conducted in 1969 and 1998 over a 5.3 km reach of the Mendenhall River revealed reductions in mean bed elevations ranging from 0.4 to 1...

Neal, Edward G.
Channel Incision and Water-Table Decline Along a Recently Formed Proglacial Stream, Mendenhall Valley, Southeastern Alaska; 2009; PP; 1760-E; Studies by the U.S. Geological Survey in Alaska, 2007; Neal, Edward G.

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Year Published: 2009

Detrital Zircon Geochronology of Cretaceous and Paleogene Strata Across the South-Central Alaskan Convergent Margin

Ages of detrital zircons are reported from ten samples of Lower Cretaceous to Paleogene metasandstones and sandstones from the Chugach Mountains, Talkeetna Mountains, and western Alaska Range of south-central Alaska. Zircon ages are also reported from three igneous clasts from two conglomerates. The results bear on the regional geology,...

Bradley, Dwight; Haeussler, Peter J.; O'Sullivan, Paul; Friedman, Rich; Till, Alison; Bradley, Dan; Trop, Jeff
Detrital Zircon Geochronology of Cretaceous and Paleogene Strata Across the South-Central Alaskan Convergent Margin; 2009; PP; 1760-F; Studies by the U.S. Geological Survey in Alaska, 2007; Bradley, Dwight; Haeussler, Peter; O'Sullivan, Paul; Friedman, Rich; Till, Alison; Bradley, Dan; Trop, Jeff

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Year Published: 2009

Volcanic processes and Geology of Augustine Volcano, Alaska

Augustine Island (volcano) in lower Cook Inlet, Alaska, has erupted repeatedly in late-Holocene and historical times. Eruptions typically beget high-energy volcanic processes. Most notable are bouldery debris avalanches containing immense angular clasts shed from summit domes. Coarse deposits of these avalanches form much of Augustine's lower...

Waitt, Richard B.; Beget, James E.
Volcanic processes and geology of Augustine Volcano, Alaska; 2009; PP; 1762; Waitt, Richard B.; Beget, James E.

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Year Published: 2009

Catalog of earthquake hypocenters at Alaskan volcanoes: January 1 through December 31, 2008

Between January 1 and December 31, 2008, the Alaska Volcano Observatory (AVO) located 7,097 earthquakes of which 5,318 occurred within 20 kilometers of the 33 volcanoes monitored by the AVO. Monitoring highlights in 2008 include the eruptions of Okmok Caldera, and Kasatochi Volcano, as well as increased unrest at Mount Veniaminof and Redoubt...

Dixon, James P.; Stihler, Scott D.

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Year Published: 2009

Black and Brown Bear Activity at Selected Coastal Sites in Glacier Bay National Park and Preserve, Alaska: A Preliminary Assessment Using Noninvasive Procedures

A number of efforts in recent years have sought to predict bear activity in various habitats to minimize human disturbance and bear/human conflicts. Alaskan coastal areas provide important foraging areas for bears (Ursus americanus and U. arctos), particularly following den emergence when there may be no snow-free foraging alternatives....

Partridge, Steve; Smith, Tom; Lewis, Tania
Black and Brown Bear Activity at Selected Coastal Sites in Glacier Bay National Park and Preserve, Alaska: A Preliminary Assessment Using Noninvasive Procedures; 2009; OFR; 2009-1169; Partridge, Steve; Smith, Tom; Lewis, Tania

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Year Published: 2009

The January 2006 volcanic-tectonic earthquake swarm at Mount Martin, Alaska

On January 8, 2006, a swarm of volcanic-tectonic earthquakes began beneath Mount Martin at the southern end of the Katmai volcanic cluster. This was the first recorded swarm at Mount Martin since continuous seismic monitoring began in 1996. The number of located earthquakes increased during the next four days, reaching a peak on January 11. For...

Dixon, James P.; Power, John A.
The January 2006 volcanic-tectonic earthquake swarm at Mount Martin, Alaska; 2009; PP; 1760-D; Studies by the U.S. Geological Survey in Alaska, 2007; Dixon, James P.; Power, John A.

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