Wednesday, May 2 1.Attendance 2.Collect Glacier Packet 3.Glacier brainpop 4.Finish Notes 5.Lab # 45 Water Gaps

Deposition – the dropping of sediment

When sediments undergo pressure – they can turn into sedimentary rock.

Little pieces of sediment can just stick together without a cement. Siltstone feels dirty – like a dusty rock.

Big sediments need cement.

Sorted – separated by size.

Horizontal Sorting – when a river enters a lake

Vertical Sorting – when sediment is dumped straight down.

Landslides can dump sediment straight down into water.

Graded Bedding- more than one vertical sorting.

Deposition by gravity – unsorted, mix of angular fragments

Deltas- triangular shaped land made from river sediment depositing where the river slows down.

Alluvial Fan – deposit from mountain sediment onto land.

Alluvial fan

Waves deposit sediment on shore.

Longshore Drift – waves moves the sand down the beach.

Wind drops sand.

Sand Dune Formation

Melting Glaciers drop sediment.

Glacial Erratics – giant rocks

Glacial Deposits

Drumlin – elongated hill

Drumlins can tell direction.

Do you recognize this place?

Landscapes – how the land looks. Rochester, NY

A different landscape Sedona, Arizona

Mountains have a high relief. (Distance from top to bottom.) Adirondacks, NY

Mt. Marcy – highest mountain in NY

Plateaus-high relief – flat tops Allegheny Plateau, NY

Colorado Plateau

Ontario Lowlands (Plains)

NYS Landscape Regions

Humid landscapes are rounded. Genesee River in Letchworth State Park

Arid (dry) landscapes are angular. Sedona, Arizona

Young Stream

Middle-aged streams

Old-aged streams

Oxbow Lakes – formed when a meander pinches itself off.

Review of stream ages.

Can you see the Genesee ?