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Published byAmi Stanley Modified over 6 years ago
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Anytime you see bold and underlined words, you will need to write those down
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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
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DEPOSITION Sediment is dropped Energy decreases Wind Water Gravity Ice
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Which will drop faster? vs. Which of the following will settle faster?
Bigger/smaller Rounder/flatter Denser/less dense
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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
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Graded bedding
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EROSIONAL-DEPOSITIONAL SYSTEMS
Glaciers Shorelines Rivers Deserts
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Dynamic Equilibrium Erosion in one place = Deposition someplace else Head of river = Mouth of river Pitted bedrock = Sand dune Gouged bedrock = Moraine deposit
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GRAVITY EROSION and DEPOSITION
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Mass movement Any form of giant slabs of land moving all at once
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Landslides 1 2
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Gravity pulls big chunks of rock off of a cliff
Rock fall 1 2 Gravity pulls big chunks of rock off of a cliff
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Creep The slow movement of giant areas of land – indicated by bent tree trunks, leaning poles, cracked roads
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When land sinks into a cave under the surface
Subsidence When land sinks into a cave under the surface
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Slump A slab of loose land is pulled down and leaves a concave scare on the cliff face
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Alluvial fan Fan-shaped deposit of angular, unsorted sediment at the base of a cliff or hill
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Talus Any gravity-deposited sediment
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