The Ranunculi of the Alaskan Arctic Coastal Plain and the Brooks Range

1955 ◽  
Vol 53 (1) ◽  
pp. 242 ◽  
Author(s):  
Lyman Benson
Keyword(s):  
Coastal Plain ◽  
Brooks Range ◽  
Arctic Coastal Plain ◽  
Alaskan Arctic

Hydrology of a Tundra Wetland Complex on the Alaskan Arctic Coastal Plain, U.S.A.

1996 ◽  
Vol 28 (3) ◽  
pp. 311 ◽  
Author(s):  
Ronald J. Rovansek ◽  
Larry D. Hinzman ◽  
Douglas L. Kane
Keyword(s):  
Coastal Plain ◽  
Arctic Coastal Plain ◽  
Wetland Complex ◽  
Alaskan Arctic

Characterization of the carbon fluxes of a vegetated drained lake basin chronosequence on the Alaskan Arctic Coastal Plain

2009 ◽  
Vol 16 (6) ◽  
pp. 1870-1882 ◽  
Author(s):  
D. ZONA ◽  
W. C. OECHEL ◽  
K. M. PETERSON ◽  
R. J. CLEMENTS ◽  
K. T. PAW U ◽  
...  
Keyword(s):  
Coastal Plain ◽  
Carbon Fluxes ◽  
Lake Basin ◽  
Arctic Coastal Plain ◽  
Alaskan Arctic

Anomalous Radiocarbon Ages from a Holocene Detrital Organic Lens in Alaska and their Implications for Radiocarbon Dating and Paleoenvironmental Reconstructions in the Arctic

1988 ◽  
Vol 29 (1) ◽  
pp. 66-71 ◽  
Author(s):  
Robert E. Nelson ◽  
L. David Carter ◽  
Stephen W. Robinson
Keyword(s):  
Coastal Plain ◽  
Radiocarbon Dating ◽  
Plant Macrofossils ◽  
The Arctic ◽  
Size Fractions ◽  
Radiocarbon Age ◽  
Organic Debris ◽  
Arctic Coastal Plain ◽  
Alaskan Arctic ◽  
Age Determinations

Eleven radiocarbon age determinations clearly show that a lens of Holocene fluvial organic debris on the Alaskan Arctic Coastal Plain contains mostly pre-Holocene organic material. Radio-carbon ages of identified plant macrofossils indicate the material was deposited about 9000 to 9500 yr B.P. Radiocarbon analyses of bulk samples from this deposit, however, range from 13,300 to 30,300 yr B.P. Most of the old organic matter seems to be in the smaller size fractions in the deposit, particularly in the fraction between 0.25 and 0.5 mm, but all size fractions are contaminated. Particular caution must be exercised in submitting bulk samples for radiocarbon dating from areas where conditions favor redeposition of isotopically “dead” carbon.

scholarly journals Contrasting lake ice responses to winter climate indicate future variability and trends on the Alaskan Arctic Coastal Plain

2018 ◽  
Vol 13 (12) ◽  
pp. 125001 ◽  
Author(s):  
Christopher D Arp ◽  
Benjamin M Jones ◽  
Melanie Engram ◽  
Vladimir A Alexeev ◽  
Lei Cai ◽  
...  
Keyword(s):  
Coastal Plain ◽  
Lake Ice ◽  
Winter Climate ◽  
Arctic Coastal Plain ◽  
Alaskan Arctic

Regional Overview of Interior Alaska

2006 ◽  
Author(s):  
David Stone ◽  
David L. Verbyla
Keyword(s):  
Boreal Forest ◽  
Coastal Plain ◽  
The Arctic ◽  
Brooks Range ◽  
Alaska Range ◽  
Mountain Glaciers ◽  
Interior Alaska ◽  
Arctic Coastal Plain ◽  
Mountain System ◽  
Patterns And Processes

From continental macroclimate to microalluvial salt crusts, geology is a dominant factor that influences patterns and processes in the Alaskan boreal forest. In this chapter, we outline important geologic processes as a foundation for subsequent chapters that discuss the soil, hydrology, climate, and biota of the Alaskan boreal forest. We conclude the chapter with a discussion of interior Alaska from a regional perspective. Alaska can be divided into four major physiographic regions. The arctic coastal plain is part of the Interior Plains physiographic division of North America, analogous to the great plains east of the Rocky Mountains. The arctic coastal plain is predominantly alluvium underlaid by hundreds of meters of permafrost, resulting in many thaw lakes and ice wedges. South of the arctic coastal plain lies the Northern Cordillera, an extension of the Rocky Mountain system dominated by the Arctic Foothills, Brooks Range, Baird Mountains, and Delong Mountains. These mountains were glaciated during the Pleistocene. South of the Brooks Range lies interior Alaska, which is an intermontane plateau region analogous to the Great Basin/Colorado Plateau regions. This extensive region is characterized by wide alluvium-covered lowlands such as the Yukon Flats, Tanana Valley, and Yukon Delta, as well as moderate upland hills, domes, and mountains. Largely unglaciated, this region served as a refugium for biota during glacial periods. With the Northern and Southern Cordilleras acting as barriers, the major rivers of this region have long, meandering paths to the Bering Sea. The Southern Cordillera is composed of two mountain ranges: the Alaska Range to the north and the Kenai/Chugach/Wrangell-St. Elias Mountains to the south. The lowland belt between these mountains includes the Susitna and Copper River lowlands. The entire Southern Cordillera was glaciated during the Pleistocene and today has extensive mountain glaciers. Much of Alaska is made up of multiple geologic fragments that have been rafted together by the movements of the major plates called tectonic terranes (Thorson 1986, Connor and O’Haire 1988). Plate-tectonic theory explains such observations as the changing distribution of fossils with geologic time, the deep Aleutian Trench, high Alaskan mountain barriers, and mountain glaciers.

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