topic: ny state glacial features - t-birds earth...
TRANSCRIPT
Topic: NY State Glacial Features
The World 22,000 yrs ago
*Landforms on NY State surface were shaped by glaciers.
Glacial Features of NY State
Kettle Lake
Till
Drumlins
Moraine
Glacial Stream
Moraine-dammed lake
Esker
Moraines- pile of unsorted sediments (ex. Long Island)
*Glacial deposits are unsorted (known as glacial till).
Hickory Run State Park, PA
Guess who?
Drumlin (upstate NY) – glacially formed tear shaped hill
Erratic – large rock, glacially transported
Glacial Erratic (Port Jefferson, NY)- Rocks carried within the
glacier that fell to the ground as the glacier melted away
Glacial Erratic Stony Brook
Erratic in Eastport, NY
Glacial Striations- grooves from glacial sediments, shows ice-flow
direction
Outwash Plains – sediment deposited in front of a melting glacier
Alaskan Outwash Plain
Kettle lake/holes: Depressions left by melting blocks of ice.
Lake Ronkonkoma is a Kettle Lake
Depth Max 65 ft. Avg. 15 ft.
Finger Lakes
Final Question:
What direction do the glacial striations point in NY State?
Lady of the lake video
http://www.youtube.com/watch?v=xhkRpyRn
6xM
Utube 10 minutes
Southern Direction