Chapter 5: The Biogeochemical Cycles

General Concepts Central to
Biogeochem Cycles
• Chemical w/ gas phase, that are stored in
atmosphere cycle rapidly. (Oxygen)
• Those w/o atmospheric phase end up in deep-ocean
sediment and recycle slowly. (Silicon)
• Since life evolved it has altered biogeochem cycles.
• The continuation of processes that control
biogeochem cycles are essential for maintenance of
life.