Pacific Margin

Pacific Margin,

western section of the great North American Cordillera, W United States and W Canada, stretching from SW Alaska to S Calif. It is composed of a central lowland region (Central Valley, Willamette valley, Puget Sound lowlands) flanked by the Coast RangesCoast Ranges,
series of mountain ranges along the Pacific coast of North America, extending from SE Alaska to Baja California; from 2,000 to 20,000 ft (610–6,100 m) high. The ranges include the St. Elias Mts.
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 on the west and the Sierra NevadaSierra Nevada
, mountain range, c.400 mi (640 km) long and from c.40 to 80 mi (60–130 km) wide, mostly in E Calif. It rises to 14,495 ft (4,418 m) in Mt. Whitney, the highest peak in the United States outside Alaska.
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, Cascade RangeCascade Range,
mountain chain, c.700 mi (1,130 km) long, extending S from British Columbia to N Calif., where it becomes the Sierra Nevada; it parallels the Coast Ranges, 100–150 mi (161–241 km) inland from the Pacific Ocean.
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, Coast MountainsCoast Mountains,
range, W British Columbia and SE Alaska, extending c.1,000 mi (1,610 km) parallel to the Pacific coast, from the mountains of Alaska near the Yukon border to the Cascade Range near the Fraser River. Mt. Waddington (13,260 ft/4,042 m) is the highest peak.
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., and Alaska RangeAlaska Range,
S central Alaska, rising to the highest mountain in North America, Denali (Mt. McKinley; 20,310 ft/6,190 m). The range divides S central Alaska from the great plateau of the interior. Mt.
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 on the east. Another common reference to the geographical area is, more simply, the Pacific Mountains and Valleys.
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References in periodicals archive ?
But the book also looks at the effects of plate tectonics--earthquakes, tsunamis, and volcanism--on contemporary life (and death) along the Pacific margin of South America, a significant chunk of what is often termed the "Ring of Fire." The third interwoven component is that of author Rob Wesson's geophysical researches into tectonism in southern South America, plus his personal retracing of Darwin's inland excursions.
The South American Pacific margin resulted from the alignment of the Andean Cordillera.
Paleozoic Evolution and Metallogeny of Pericratonic Terranes at the Ancient Pacific Margin of North America, Canadian and Alaskan Cordillera
Most of the papers represent contributions under the umbrella of the 1999-2003 Pacific Margin NATMAP program, in which provincial and territorial surveys combined with the Geological Survey of Canada to focus mapping efforts on terranes related to the Paleozoic and Mesozoic margins of the Laurentian plate.
(1985): The Pacific margin of Antarctica: Terranes within terranes within terranes.

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