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FLUVIAL PROCESSES & LANDFORMS

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Presentation on theme: "FLUVIAL PROCESSES & LANDFORMS"— Presentation transcript:

1 FLUVIAL PROCESSES & LANDFORMS
GEOGRAPHY 12

2 Memory Lane… Think about a memory or two that you have that involves being in or around any type of river or moving water. Post-its?-write it down. Share w/ a classmate. Why are rivers important? Ms. Pasichnyk’s

3 4 Types of Transportation in Rivers 4 types
pebble transport by rivers

4 DRAINAGE PATTERNS Influenced by shape of land & how the bedrock resists to erosion DENDRITIC: uniform bedrock(like a leaf pattern) TRELLIS, RECTANGULAR & ANNULAR: tributaries go around obstacles; irregular bedrock Refer to page 259 in your text for diagrams!

5 River Channel Erosion

6 Point bar(depositon) & Under-cut (erosion)

7 ALLUVIAL FAN

8 ESTUARIES Formed where river joins the ocean Fresh & salt water mix
Home to the world’s most productive ecosystems Develop on deltas (accumulations of sediment)

9 Fraser River Estuary

10 DELTAS Arcuate Nile River Bird’s Foot Mississippi River

11 Youthful Rivers Characteristics: -Mountainous regions -Steep slopes
-Rapids, falls -Large boulders, rocks

12 Mature Rivers Characteristics: -Meanders begin to form
-Fewer rapids & falls -Smoother river profile

13 Old Rivers Characteristics: -Lateral erosion & deposition prevalent
-Wide floodplains -Large meander curves -Oxbow lakes -No rapids or falls -Levees

14 Oxbow Lake Formation


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