And oxidajon of geological organic c ch2o o2 co2 h2o

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Unformatted text preview: : What are they? 1a: 63 Gt/y 8 7 land bioshpere (2200 Gt) 6 atmosphere (800 Gt) lithosphere (78,000,000 Gt) 1b: 4 5 Gt/ y 2b: 4 5.2 G t/y hydrosphere (38,400 Gt) 1a: Photosynthesis (land): CO2 + H2O à༎ CH2O + O2 1b: Photosynthesis (marine): CO2 + H2O à༎ CH2O + O2 2a: ResipiraJon (marine): CH2O + O2 à༎ CO2 + H2O 2b: RespiraJon (marine): CH2O + O2 à༎ CO2 + H2O 3: Chemical Weathering (step 1) : CaCO3 + CO2 à༎ Ca2+ + 2HCO3- CaSiO3 + CO2 + H2O à༎ Ca2+ + 2HCO3- + SiO2 (Urey ReacJon) 4a, 4b: Geological Burial of Organic C (to produce coal, oil, gas, & sedimentary organic C) 5: Chemical Weathering (step 2, creaJon of carbonate rock): Ca2+ + 2HCO3- à༎ CaCO3 + 2H+ + CO32- (Overall Simplified Urey ReacJon: CaSiO3 + CO2 à༎ CaCO3 + SiO2) Nine Fluxes: What are they? 1a: 63 Gt/y 8 7 land bioshpere (2200 Gt) 6: 0.4 Gt/y atmosphere (800 Gt) lithosphere (78,000,000 Gt) 1b: 4 5 Gt/ y 2b: 4 5.2 G t/y hydrosphere (38,400 Gt) 1a: Photosyn...
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