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EROSION the transport of sediment Energy increases

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Presentation on theme: "EROSION the transport of sediment Energy increases"— Presentation transcript:

1 Anytime you see bold and underlined words, you will need to write those down

2 EROSION the transport of sediment Energy increases
Water Gravity Ice Wind EROSION the transport of sediment Energy increases More energy = more particles and bigger particles

3 DEPOSITION Sediment is dropped Energy decreases Wind Water Gravity Ice

4 Which will drop faster? vs. Which of the following will settle faster?
Bigger/smaller Rounder/flatter Denser/less dense

5 All the same size or graded, due to change in energy
Sorted Unsorted All the same size or graded, due to change in energy Fall randomly, mixed

6 Graded bedding

7 EROSIONAL-DEPOSITIONAL SYSTEMS
Glaciers Shorelines Rivers Deserts

8 Dynamic Equilibrium Erosion in one place = Deposition someplace else Head of river = Mouth of river Pitted bedrock = Sand dune Gouged bedrock = Moraine deposit

9 GRAVITY EROSION and DEPOSITION

10 Mass movement Any form of giant slabs of land moving all at once

11 Landslides 1 2

12 Gravity pulls big chunks of rock off of a cliff
Rock fall 1 2 Gravity pulls big chunks of rock off of a cliff

13 Creep The slow movement of giant areas of land – indicated by bent tree trunks, leaning poles, cracked roads

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15 When land sinks into a cave under the surface
Subsidence When land sinks into a cave under the surface

16 Slump A slab of loose land is pulled down and leaves a concave scare on the cliff face

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18 Alluvial fan Fan-shaped deposit of angular, unsorted sediment at the base of a cliff or hill

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21 Talus Any gravity-deposited sediment

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