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: 2,411
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Year Published: 1985

The United States Geological Survey in Alaska: Accomplishments during 1984

This circular contains short reports about many of the geologic studies carried out in Alaska by the U.S. Geological Survey and cooperating agencies during 1984. The topics cover a wide range in scientific and economic interest.

Bartsch-Winkler, Susan B.
The United States Geological Survey in Alaska: Accomplishments during 1984; 1985; CIR; 967; Edited by Bartsch-Winkler, S.

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Year Published: 1985

USGS research on mineral resources, 1985 program and abstracts

The extended abstracts in this volume are summaries of the papers presented orally and as posters in the first V.E. McKelvey Forum on Mineral and Energy Resources, entitled "USGS Research on Mineral Resources-1985." The Forum has been established to improve communication between the USGS and the earth science community by presenting the results of...

Krafft, Kathleen
USGS research on mineral resources, 1985; program and abstracts; 1985; CIR; 949; Edited by Krafft, Kathleen

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Year Published: 1985

Pup production, abundance, and breeding distribution of northern elephant seals at San Nicolas Island, winter 1981

A major breeding colony of northern elephant seals, Mirounga angustirostris, occurs on San Nicolas Island, California. Due to commercial hunting, elephant seals were extinct on San Nicolas Island by the end of the 19th century. Subsequent recovery of the population has been well documented (Table 1). Census data collected since 1949...

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Year Published: 1985

The Meshik Arc: An eocene to earliest miocene magmatic arc on the Alaska Peninsula

The Meshik arc is herein defined to include Eocene to earliest Miocene volcanic and hypabyssal rocks and the associated Meshik and Stepovak Formations of the central Alaska Peninsula. Igneous rocks range from basalt to dacite and yielded K-Ar ages of 48 to 22 m.y. The Meshik arc is oriented along the trend of the Alaska Peninsula, subparallel to...

Wilson, Frederic H.

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Year Published: 1985

Diving depths of four alcids

Incidental catches of 12,243 Common Murres (Uria aalge), 875 Atlantic Puffins (Fratercula arctica), 36 Black Guillemots (Cepphus grylle), and 9 Razorbills (Alca torda) were recorded off Newfoundland during the summers of 1980-1982 (26,445 net-days of fishing effort). Most catch occurred in stationary gill nets set on the sea floor at depths of up...

Piatt, John F.; Nettleship, David N.

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Year Published: 1985

Foraging recruitment by the Giant Tropical Ant Paraponera clavata (Hymenoptera, Formicidae)

Increased foraging of an exceptionally abundant, but ephemeral, food source by ants can result from foraging excitement that does not include pheromone trails, tandem running, or from recruitment of other workers along pheromone trails (Carrol and Janzen, 1973). They also provided rationale for two types of short-lived pheromone trails resulting...

Barrett, Bruce A.; Jorgenson, Clive D.; Looman, Sandra J.

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Year Published: 1985

Research on Alaskan polar bears in 1979 and 1980

In 1979 the U.S. Fish and Wildlife Service continued its program of mark and recapture. From 31 March to 4 May field crews working at Point Barrow, Alaska, captured and marked a total of 15 polar bears (Table I). The small number was due to very poor ice conditions off the coast of Alaska, making tracking and capturing difficult. Four of the bears...

Amstrup, Steven C.

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Year Published: 1985

Summary of data on the age of the Orca Group, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1984

The Orca Group is a widespread, thick, complexly deformed accretionary sequence of flysch and tholeiitic basalt in the Prince William Sound area (Winkler, 1976; Winkler and Plafker, 1981) (fig. 49). Despite a number of extensive field studies of the Orca Group, reliable data on the age of the unit have been elusive. On the basis of sparse...

Plafker, George; Keller, Gerta; Nelson, Steven W.; Dumoulin, Julie A.; Miller, Marti L.

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Year Published: 1985

The Emperor Goose

Many ornithologists believe the emperor goose (Chen canagicus) is the most beautiful goose in North America. Detailed descriptions of its plumage can be found in Palmer1 and a general description in Bellrose.2 Emperor geese are rather short and squatty, with yellow-orange feet and pink bills. Their bluish-gray body feathers are banded in black and...

Di Silvestro, Roger L.; Petersen, Margaret R.

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Year Published: 1985

Vertical transmission of infectious hematopoietic necrosis virus in sockeye salmon (Oncorhynchus nerka): Isolation of virus from dead eggs and fry

The control of epizootics of infectious haematopoietic necrosis (IHN) virus in salmonid fishes is presently based on examination and certification of adult brood fish to prevent the introduction of virus-infected eggs into hatcheries (Canadian Fisheries and Marine Service 1976; McDaniel 1979). This strategy is based on the assumption that the...

Mulcahy, D.; Pascho, R.J.

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Year Published: 1985

Processing of Landsat imagery to map surface mineral alteration on the Alaska Peninsula: A section in USGS research on mineral resources, 1985 program and abstracts

Landsat images were digitally processed to facilitate assessment of the mineral resources of the Port Moller, Stepovak Bay, and Simeonof Island 1:250,000 quadrangles. Field mapping and assessment of these quadrangles were begun in 1983 as part of the Alaska Mineral Resource Assessment Program (AMRAP). It was quickly realized that time and budget...

Wilson, Frederic H.; York, James

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Year Published: 1984

A transect of metamorphic rocks along the Copper River, Cordova and Valdez Quadrangles, Alaska: A section in The United States Geological Survey in Alaska: Accomplishments during 1982

The lower Tertiary Orca Group is juxtaposed against the Upper Cretaceous Valdez Group along the Contact fault system (Winkler and Plafker, 1974, 198; Plafker and others, 1977)(fig. 33). In both groups, turbidites are the dominant rock type, with lesser mafic volcanic rocks (table 10). The Valdez Group, on the north, has traditionally been...

Miller, Marti L.; Dumoulin, Julie A.; Nelson, S.W.

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