Department of Earth Sciences, University of Bristol
Environmental Geochemistry
Prof. D.M. Sherman

Lecture 2: Introduction to Biogeochemistry


Many geochemical processes are mediated by micro-organisms. Redox reactions, in particular are facilited by bacteria and archea which use reduced species as fuel and oxidized species as electron acceptors. The composition of the Earth's atmosphere is far out of chemical equilibrium but is (more-or-less) at steady state due to the biological fluxes from photosynthesis and respiration.


You should be able to outline:

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