Biology 2217A/B Lecture Notes - Lecture 6: Ordovician, Protist, Sphagnum
4 Feb 2019
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Document Summary
Fire - an oxidation reaction: co2 dispersion off of this reaction. World energy sources: global primary energy consumptions, current highest coal, crude oil, and natural gas. Fossil fuels that come from a plant beginning: coal from terrestrial plant communities of the carboniferous period, 362-290 mya and also the cretaceous period, ~140 mya. Time from fossil records: can see when many plants came about, doted lines show extinction events lots of fossilized plant matter. Leaves produce 5x-15x as much ash fuel where energy sources are low: peat bogs in scotland house a lot of peat. Charcoal: charcoal is produced by slow pyrolysis (burning) of wood, sugar, and bone in the absence of oxygen, can produce higher heat than wood, human made product. Fossilized remains of plants decomposed plant material that was converted into carbon. Coal: harder and more compact than peat or lignite, greater heating power, coal from hard to soft. Yields more smoke and ash: anthracite bituminous lignite.
