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A burning candle. Fire is the rapid oxidation of a material (the fuel) in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. [1] [a] At a certain point in the combustion reaction, called the ignition point, flames are produced.
This occurs when the fire's behavior is mostly controlled by winds generated by the fire's own plume. [9] This could lead to erratic conditions such as a column collapse and rapid runs. [10] Typical appearance of a plume-dominated fire. This picture was taken at the Silver Fire in Oregon in 1987. Typical appearance of a plume-dominated fire.
In the early Triassic, after the largest naturally-caused extinction event in Earth's history at the end of the Permian, there is an enigmatic coal gap, suggesting a very low biomass; [28] this is accompanied by a paucity of charcoal throughout the entire Triassic period. [8] Fires again become significant in the late Jurassic through the ...
This allows the use of fire as a proxy for the reconstruction of climates in the distant past. The effects of the fire can be seen using processes like loss on ignition. Soil chemistry is analyzed to determine changes in mineral and carbon percentages as a result of fire. Historical data may reveal the source or cause of fire.
1985 forest fires burnt 105,000 hectares with the worst affected being around Kavala in eastern Macedonia and Thasos Island in the north Aegean. [11] 2000 forest fires were the worst forest fires to date and included the island of Samos in east Aegean and at Mount Mainalon and eastern Corinthia in the Peloponnese. The burnt area was 167,000 ...
Fire history, the ecological science of studying the history of wildfires, is a subdiscipline of fire ecology.Patterns of forest fires in historical and prehistorical times provide information relevant to the vegetation pattern in modern landscapes.
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In chaparral communities in Southern California, for example, some plants have leaves coated in flammable oils that encourage an intense fire. [20] This heat causes their fire-activated seeds to germinate (an example of dormancy) and the young plants can then capitalize on the lack of competition in a burnt landscape. Other plants have smoke ...