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