Geologic and Topographic Setting |
Geologic and Topographic Setting |
(WEB NOTE: Many scientists refer to many of these volcanoes as "Shield Volcanoes" and not "Stratovolcanoes" ... please refer to descriptions on each individual volcano, and read further about Central Oregon High Cascades, for further information.) |
Climate and Vegetation |
Glaciers |
High Cascades and Western Cascades |
Central Oregon High Cascades |
Glaciers and Glaciations |
(The Neoglacial period was defined by Porter and Denton (1976) as encompassing the last 5,000 to 6,000 carbon-14 years, when alpine glaciers reformed and advanced. The "Little Ice Age" (Matthes, 1939) is generally regarded as the culmination of the Neoglacial period, and is a term used by climatologists, geologists, and glaciologists to describe a period of worldwide lower temperatures and advanced glacier positions from the 16th century through the late 19th century (Grove, 1988, p.3-5).) |
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