GEV 1050 Lecture Notes - Lecture 5: Kerogen, Carbon Cycle, Titin

• School: Villanova University
• Department: Geography and the Environment
• Course: GEV 1050
• Professor: Weston

Document Summary

Clicker: ultimate source of nrg: nuclear reactions (fusion and fission). We are made up largely of carbon, sponch. Largest known molecules are diamonds, graphite sheet. Oxidation and reduction: oxidation: loss of electrons or an increase in oxidation state of a molecule, atom or ion, reduction: gain of electrons or a decrease in oxidation state of a molecule, atom, or ion. Methane reduced c, co2 is oxidized c: photosynthesis reduces co2 and stores nrg as organic matter. E(cid:448)ery(cid:449)here everything living thing and thing that used to be living, atmosphere, ocean water (carbonate, inorganic), dry ice (frozen co2) rocks (inorganic deposits, limestone (calcium carbonate. Caco3) marble (metamorphic form of limestone), fossil fuels (coal, natural gas, kerogen) Lot more c in ocean than atmosphere; ocean is the largest reservoir of actively cycled c (recent. Driven by photosynthesis: primary producers constitute 98% of organic carbon in the biomass pool. Most carbon is in inorganic deposits 65 million petagrams.