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Weathering - Weathering Mass Wasting and Karstification Our...

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Weathering, Mass Wasting and Karstification
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Our Earth is Dynamic Plutonic, Volcanic, and Orogenic forces are constantly, elevating parts of the Earth. Opposing forces are removing materials from higher elevations. All materials are subject to weathering.
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Terminology - TQ Geomorphology = the study of landforms, their origin, evolution, form, and spatial distribution. Denudation = any process that wears away or rearranges landforms. Base Level = a level below which a stream cannot erode its valley further. The Ultimate Base Level = Sea Level
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Weathering - TQ When rock is broken into increasingly smaller parts, each maintaining the characteristics of the original material. Mechanical and Chemical
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Mechanical Weathering - TQ Is accomplished by physical forces, increasing the amount of surface area exposed to the weather s destructive power The Primary agent of mechanical weathering is water.
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Examples of Mechanical Weathering - TQ Frost action Salt-Crystal Growth Solution Potholes Exfoliation Organic Activities
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Frost Action
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Salt Crystal Growth Weathering
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Sandstone niche in the lower wall of Canyon de Chelly, Arizona
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Pot Holes in Navajo Sandstone, Utah
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Exfoliation -TQ
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Enchanted Rock, Llano Texas http://www.flickr.com/photos/yumievriwan/440214336/
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Overburden Compression Erosion Exposing the Pluton
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Organic Activities Root Wedging
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Clams
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Ant Mounds
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Physical Weathering Surface erosion due to stream action
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