5-19 - Wildfires and Geology Fire Fire is combustion, a...

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Wildfires and Geology Fire Fire is combustion, a form of rapid oxidation. Fire produces Heat and visible light Ionized gas (flames) Smoke (unburned material and toxic gas) Fire Wildfires are those that occur in vegetation Uncontrolled Start naturally or by people Can destroy settlements as well as undeveloped areas. Fire Firestorm Large fires may begin to pull in air Firestorm Large fires may begin to pull in air Resulting winds may be stronger than prevailing wind Firestorm Large fires may begin to pull in air Resulting winds may be stronger than prevailing wind Increase fire intensity Firestorm Large fires may begin to pull in air Resulting winds may be stronger than prevailing wind Increase fire intensity “Fire tornadoes” can occur Fires and Geologic History Land plants not common until ~450 million years ago. Fires and Geologic History Land plants not common until ~450 million years ago. Remember Earth is 4.6 billion years old
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This note was uploaded on 02/14/2009 for the course GEOL 105 taught by Professor Kohut during the Spring '08 term at University of Delaware.

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5-19 - Wildfires and Geology Fire Fire is combustion, a...

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