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United States (323,974)
Geology (192)
GEOL105 (163)
Dr.Ed Kohut (115)
Lecture 5

GEOL105 Lecture 5: GEOL105 Lecture

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Department
Geology
Course
GEOL105
Professor
Dr.Ed Kohut
Semester
Spring

Description
3222017 Weathering Weathering o The breakdown of bedrock near or at the surface, (exposed to weather) o Important for: Long term erosion Slow continual removal of material Soil formation Masswasting or landslides Two ways to break down rock o 1) Mechanically or physically o 2) Chemically o Also through Physical (mechanical) weathering o Rock disintegrates into smaller fragments Physically broken Does not change mineral compositions o Physicaltemperature changes Rock surface may expand and contract with temp Separates surface from interior PhysicalFrost Wedging o Water works as a wedge or prybar, expansion and contraction by freezethaw cycle pries bedrock apart
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