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Washington

Washington. Washington. 10,000 year old glaciated land. Coastal Range. North Cascade Mountains. Basalt lava Plateau. Rivers of Washington. Excellent drainage patterns and a through-flowing river. No tin or iron. Farm Land. Volcanoes in Washington.

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Washington

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  1. Washington

  2. Washington

  3. 10,000 year old glaciated land Coastal Range North Cascade Mountains Basalt lava Plateau

  4. Rivers of Washington Excellent drainage patterns and a through-flowing river

  5. No tin or iron Farm Land

  6. Volcanoes in Washington http://www.dnr.wa.gov/Publications/ger_ftg1_yakima_valley_wine_country.pdf

  7. Geological Provinces of Washington Northern Cascade Mountains Olympic Peninsula Volcanic Cascade Mountains Now to the continental glacier

  8. Most Recent Continental Glaciation 100,000 to 17,000 years ago Notice that glaciers extend well out into the Pacific Ocean How did First Nation People get across Canada and into the USA and Mexico?

  9. Igneous Rocks of Northern Washington Area of complex plutonic igneous and metamorphic rocks Igneous Rocks not along the Cascade Trend

  10. Permian Rocks: 250 million years ago And here Not here But remember this one in Idaho and eastern Oregon & Washington

  11. The Columbia Plateau Northern Cascades plutonic & metamorphic rocks Columbia Plateau High Cascades Willapa Hills Multiple *Basalt lava flows *Basalt lava flows: similar rock to Oceanic Crust

  12. Columbia Plateau Basalt Lava Flow Multiple lava flows About 4 million years old Similar to oceanic crust What rocks were covered by the basalt?

  13. The Source for the Lava Flows of Washington Exotic subcontinents rafted in from the Pacific <100 million years old North American Continental Crust 1–2 billion years old 4 million year old Columbia Basalt lava flows Cross Section Source area for basalt lavas

  14. Permian Rocks: 250 million years ago Not here Source of the basalts of Oregon & Washington

  15. Source of Lava Flows; SE Washington North American Continental Crust 1–2 billion years old Oldest Exotic Pacific terrane Younger Exotic Pacific terranes On the British Columbia

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