NS3310-Physical Science Studies Weathering and Erosion

TopoBingo You will each get a map. Each map has information about how to read it, and symbols that tell you where certain features are. As I call out each feature, look for that symbol on your map. The first team to get 5, gets Bingo

Agents of Weathering and Erosion Water –Flooding –Dissolution Wind –Scouring –Aeolian transport Gravity –Slides, Slumps and Creep Ice (Glaciers) –Frost Wedging –Scouring

Rivers and Streams Watershed –Climate –Terrain –Rainfall Bedrock –Permeability –Mineralogy –Faults

Water Flows Downhill! Life Cycle of a Meandering River – Degradational Stage Tributaries River Channel –Balanced Stage Point Bars Levees Flood Plains –Aggradational Stage Distributaries Deltas –Terminal Stage –Stream Piracy

Drainage Patterns Dendritic Rectangular Tellis Raidal

Erosional Features Meanders –Oxbow Lakes Cut Banks Terraces –Transgressive Sequences –Regressive Sequences

Depositional Features Point Bars Levees Flood Plains Deltas Environments of Deposition

Wind Mechanisms of Sand Transport –Saltation –Aeolian transport Sand Drifts Sand Dunes –Wind Speed –Wind Direction –Variability

Wind is the Dominant Factor in Arid Regions Depositional Features –Alluvial Fans –Bajadas –Playa Lakes Erosional Features –Plateaus –Mesas –Buttes

Glaciers Alpine Glaciers Piedmont Glaciers Continental Glaciers

Alpine Glaciers Hanging Valleys Cirques Aretes Horns Moraines

Continental Glaciers Moraines –Lateral –Terminal Outwash Plain –Drumlins –Eskers –Kettle Lakes

Glacial Cycles Why Glaciers –Land at the Poles –Global Temperature Glacial Cycles –Glacial Maximum –Glacial Minimum –Interglacial Periods

Gravity Slides –Rock –Mud –Avalanche Slumps Creep

Key Concepts Erosion is the movement of earth materials created by chemical and physical weathering Landscape features are created by these physical forces acting on the earth’s surface over time (tectonism, volcanism and weathering and erosion) Weathering and Erosion change the earth from the top down Water, Gravity, Wind and Ice are all Agents of Weathering and Erosion The earth’s crust records these changes in Strata Studying the earth’s strata tells us about the earth’s past