In a drawing show how a push moraine develops. Most of Long Island's moraines were structurally made in this manner. Describe the features developed on Long Island during ther last advance of the glacier. See the notes for February 13 and February 18. If you take the ferry to Bridgeport, CT you need only travel a short distance along highways 8 or 95 to see exposed basement deformed during the Acadian Orogeny.
Drift is a general name for sediment associated with glaciers.
The next youngest sediments are Stratified Melt Water Deposits , as the glacier moved away from Harbor Hill Moraine a lake formed between the front of the glacier and the Harbor Hill Moraine. The Harbor Hill Moraine dammed the water on the south and the Glacier dammed the water on the north. The two types of sediments associated with this damming are Lake Delta Fans Varved Lake Clay, 15.5-19 Ka. Varved clays consists of a pair of layers of clay deposited in a quiet glacial lake in Long Island Sound. The light layer deposited during the summer is coarser and may include sand and silt.