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Page 227, results 5651 - 5675

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Not all publications have extents, not all extents are completely accurate
Stratigraphy, structure, and graptolites of an Ordovician and Silurian sequence in the Terra Cotta Mountains, Alaska Range, Alaska
Michael Churkin Jr., Claire Carter
1996, Professional Paper 1555
The geology and graptolite faunas of the Terra Cotta Mountains in south-central Alaska are described. Three new formations of Paleozoic age are named and described; they include graptolitiferous argillaceous rocks, sandstones, and limestones of the Dillinger Terrane. The structure and tectonics of the mapped area arc also discussed. Ninety-five species...
Description of wells drilled at the U.S. Coast Guard Support Center Kodiak, Alaska, 1988-89
M.R. Carr
1996, Open-File Report 96-134
The U.S Coast Guard, in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act and the Resource Conservation and Recovery Act, is conducting environmental studies at its Support Center in Kodiak, Alaska, to determine if hazardous materials have been spilled or disposed of at the facility. The U.S. Geological...
Mass balance, meteorological, ice motion, surface altitude, and runoff data at Gulkana Glacier, Alaska, 1992 balance year
R.S. March, D.C. Trabant
1996, Water-Resources Investigations Report 95-4277
The 1992 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 measured in the basin and are reported herein. Averaged over the glacier, the measured winter snow balance was 0.97 meters on March...
Volcanic activity in Alaska: Summary of events and response of the Alaska Volcano Observatory 1993
Christina A. Neal, Robert G. McGimsey, Michael P. Doukas
1996, Open-File Report 96-24
During 1993, the Alaska Volcano Observatory (AVO) responded to episodes of eruptive activity or false alarms at nine volcanic centers in the state of Alaska. Additionally, as part of a formal role in KVERT (the Kamchatkan Volcano Eruption Response Team), AVO staff also responded to eruptions on the Kamchatka Peninsula,...
Lithostratigraphy, microlithofacies, and conodont biostratigraphy and biofacies of the Wahoo Limestone (Carboniferous), eastern Sadlerochit Mountains, Northeast Brooks Range, Alaska
A.P. Krumhardt, A. G. Harris, K.F. Watts
1996, Professional Paper 1568
The lithostratigraphy, microlithofacies, and conodonts are described in a key section of the Wahoo Limestone (Middle Carboniferous); this unit forms a hydrocarbon reservoir at Prudhoe Bay. The Wahoo was deposited in a range of environments on the inner part of a high-energy carbonate ramp. Microfacies and conodont biofacies used together...
Metamorphic facies map of southeastern Alaska: Distribution, facies, and ages of regionally metamorphosed rocks
Cynthia Dusel-Bacon, D. A. Brew, S. L. Douglass
1996, Professional Paper 1497-D
Nearly all of the bedrock in Southeastern Alaska has been metamorphosed, much of it under medium-grade conditions during metamorphic episodes that were associated with widespread plutonism. The oldest metamorphisms affected probable arc rocks near southern Prince of Wales Island and occurred during early and middle Paleozoic orogenies. The predominant period...
Distribution, facies, ages, and proposed tectonic associations of regionally metamorphosed rocks in Southwestern Alaska and the Alaska Peninsula
Cynthia Dusel-Bacon, Elizabeth O. Doyle, Stephen E. Box
1996, Professional Paper 1497-B
The oldest dated metamorphic sequence in Alaska, the fault-bounded Kilbuck Terrane, consists of continental rocks that were metamorphosed under amphibolite-facies conditions during early Proterozoic (1.77 Ga) time. Proterozoic or early Paleozoic metamorphic ages are also possible for greenschist- and amphibolite-facies continental rocks in interior Alaska (Ruby and Nixon Fork terranes)....
Thermal evolution of sedimentary basins in Alaska
Mark J. Johnsson, David G. Howell, editor(s)
1996, Bulletin 2142
The complex tectonic collage of Alaska is reflected in the conjunction of rocks of widely varying thermal maturity. Indicators of the level of thermal maturity of rocks exposed at the surface, such as vitrinite reflectance and conodont color alteration index, can help constrain the tectonic evolution of such complex regions and, when combined with petrographic, modern...
Organic geochemistry applied to environmental assessments of Prince William Sound, Alaska, after the Exxon Valdez oil spill—a review
A.E. Bence, Keith A. Kvenvolden, M.C. Kennicutt II
1996, Organic Geochemistry (24) 7-42
Organic geochemistry played a major role in the environmental assessments conducted following the Exxon Valdez oil spill, which occurred on March 24, 1989, and released about 258,000 bbls (41 million liters) of Alaska North Slope crude oil into Prince William Sound. Geochemical analyses of more than 15,000 sediment, tar, and biological samples...
Overview of studies to determine injury caused by the Exxon Valdez Oil Spill to marine mammals
Thomas R. Loughlin, Brenda E. Ballachey, B.A. Wright
S.D. Rice, R.B. Spies, D.A. Wolfe, B.A. Wright, editor(s)
1996, Book, Proceedings of the Exxon Valdez oil spill symposium, American Fisheries Society Symposium 18
Marine mammal damage assessment studies after the Exxon Valdez oil spill concentrated on sea otters, harbor seals, Steller sea lions, killer whales, and humpback whales. Sea otter and harbor seals were the most affected marine mammal; it was estimated that several...
Comparative demography of sea otter populations
James A. Estes, Daniel F. Doak, James L. Bodkin, Ronald J. Jameson, Daniel H. Monson, Jon Watt, M. Tim Tinker
1996, Endangered Species UPDATE (13) 11-13
Population trends are poorly documented and demographic information is typically lacking for many carnivorous mammals. The sea otter (Enhydru lutris) has a well known history of decline and recovery, and while many other species have declined as precipitously, few have recovered so spectacularly. Generally speaking, northern populations (remnants within the...