Glaciers. Snow Alpine Glacier Continental Glacier.

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Presentation transcript:

Glaciers

Snow

Alpine Glacier

Continental Glacier

Glacial Cap

Alpine Glaciers First

Accumulation vs Wastage

Crevasses

Movement

Moraines lateral morainemedial moraine

Moraines

Till

Erosion I

Erosion II

Erosion III

Fjord Pic

Hanging Valley

Matterhorn

Continental Glaciers

Greenland Edge

Rebound

River Downcutting

Erosion and Deposition

Glacial Plucking

Striations

Last Ice Age

Various Moraines

Long Island

Drumlin

Drumlin Field

Great lakes

Pleistocene Lakes

Bonneville Shoreline

Lake Missoula Flood 10x the combined flow of the world’s current rivers drained in 48 hours.

Channeled Scablands, WA Huge ripple marks

Sea Level Change

Sea level rise

440,000 year record 420,000 year old ice core Carbon dioxide has not been higher than 300 ppm in the past 420,000 years. 1900: We hit 300 ppm 1958: 358 ppm 2005: 380 ppm 2060: 600 ppm (NASA projection)

SE coast

Sea Level Change

Shrinking Ice

Gulf stream

Atlantic: Decreasing salinity