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- W3134452986 abstract "<p>Evidence of wildfire activity in deep time is preserved in the rock record as fossilised charcoal. Modern wildfire temperature is often a function of fuel type, structure and availability. These three factors are reliant upon climatic conditions&#8239;and offer&#8239;a&#8239;potential insight into&#8239;palaeoenvironmental&#8239;conditions through geothermometric analysis of preserved charcoals. Much like the analysis of vitrinite reflectance as an assessor of thermal maturity, similar methodology has been applied historically to charcoal in order to obtain palaeowildfire temperatures.&#8239; Raman spectroscopy has similarly been applied to organic material as an identifier of thermal maturity, via the analysis of carbon microstructure changes with increasing temperature &#8211; however very little&#8239;palaeocharcoal&#8239;has been analysed via Raman spectroscopy, with no apparent application to&#8239;palaeowildfire&#8239;geothermometry. Through the application of Raman spectroscopy, we present the first comparison of modern pyrolyzed plant material with spectra of&#8239;early&#8239;Danian&#8239;palaeocharcoals, associated with wildfire activity. These results indicate that Raman spectroscopy of&#8239;modern&#8239;wildfire&#8239;charcoal&#8239;facilitates a correlation between charcoal microstructure change and temperature of formation. This in turn has enabled comparison with&#8239;palaeocharcoal, and the generation of reliable wildfire&#8239;geothermometry. With this new&#8239;methodology, we intend to&#8239;further&#8239;the&#8239;understanding of (1) changes in&#8239;palaeowildfire&#8239;regimes and intensity through time (2) the interaction between climate, plant community composition and structure, and&#8239;palaeowildfires&#8239;&#8239;(3) correlation and comparison with existing&#8239;palaeowildfire&#8239;interpretive approaches.&#8239;Further analysis and experimentation&#8239;is&#8239;required to identify the impact of fire determining factors on observed spectra to target the new approach towards interpreting current and future wildfire behaviour under climatic stress.&#160;</p>" @default.
- W3134452986 created "2021-03-15" @default.
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- W3134452986 date "2020-03-23" @default.
- W3134452986 modified "2023-09-26" @default.
- W3134452986 title "Applying Raman Spectroscopy to Modern and Palaeocharcoals Associated with Wildfire Activity" @default.
- W3134452986 doi "https://doi.org/10.5194/egusphere-egu2020-3727" @default.
- W3134452986 hasPublicationYear "2020" @default.
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