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Transcript
The Making of Northwest
Landscape
Presented by Bruce Barcklow
Geological Processes
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Volcanic
Glacial
Exotic Terranes (North Cascades, Olympics)
Batholiths (Mount Stuart)
Basalt Flows
Catastrophic Floods
Plate Tectonics and Continental Uplift are the
major underlying forces
Mount Rainier from First Burroughs
Mount Baker
Glacier Peak – Chocolate Glacier in Center
Adams False Summit from Lunch Counter
St. Helen’s Caldera
Wilson and Nisqually Glaciers at Rainier
Nisqually Glacier
Glacial Moraine – Easton Glacier, Mt. Baker
Rattlesnake Ridge and Snoqualmie
Valley from Mt. Si
Trail to Sahale Arm – North Cascades
Ptarmigan Traverse on Left
“Exotic Terrane”
Mount Shuksan
Pillow Basalts exposed on Olympic Coast
“Rotten Rock” of the Olympics
Mount Stuart – Cascadian Couloir on right
“Batholith”
Granite Blocks on Stuart Summit
Serpentinite
Yellowstone Hotspot
Columbia River Basalt – Moses Coulee
Umatilla Rock from Dry Falls
Dry Falls
Potholes Coulee- Channeled Scablands