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Unformatted text preview: à༎ CaCO3 + 2H+ + CO32- (Overall Simplified Urey ReacJon: CaSiO3 + CO2 à༎ CaCO3 + SiO2) 6: Uplis and oxidaJon of Geological Organic C: CH2O + O2 à༎ CO2 + H2O 7: Metamorphism and volcanism: CaCO3 + SiO2 à༎ CO2 + CaSiO3 (“Reverse” Urey ReacJon) Metamorphism and volcanism: CaCO3 + SiO2 à༎ CO2 + CaSiO3 (“Reverse” Urey ReacJon) CaSiO3 + CO2 Nine Fluxes: What are they? 1a: 63 Gt/y 8: 0.12 Gt/y 7: 0.12 Gt/y 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: 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...
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This document was uploaded on 03/26/2014 for the course GEC AS.270.103 at Johns Hopkins.

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