Catastrophic flood - Glacial Lake Missoula Giant ripple marks from catastrophic flood.
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Giant ripple marks from catastrophic flood
Transcript of Catastrophic flood - Glacial Lake Missoula Giant ripple marks from catastrophic flood.
Catastrophic flood - Glacial Lake Missoula
Giant ripple marks from catastrophic flood
Ice shelves - what are they? How do they form?
Why are they important?
Ice shelves - what are they? Floating icesheet - form in center of continent and move out under own weight
Why are they important? Hold back glaciers/icesheets
What has happened recently to ice shelves?
Which would bemost vulnerable?
Larsen Ice shelfGone 2002Wilkins
2008
1/31/02
Larsen B IceShelf, Antaractic Peninsula
2/17/02
2/23/02
Adelie penguin populationsare declining abruptly in the Antarctic Peninsula, where populations of other penguins occurring farther north aregrowing
From National Geographic, 9/04, p. 17
