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The Calcium Cycle

By: Alex Lucas

Diagram

Most Common Chemical Form(s):

-calcium carbonate

-lime

-slaked lime

-calcium sulfate

-calcium nitrate

-calcium phosphate

Biosphere

Calcium Cycle in spheres + inputs/outputs

Introduction

  • Necessary for human life (refer to first slide)
  • First slide details: biomineralisation + other benefits in human body
  • protein
  • needed for soil fertility (agriculture)
  • human body
  • biomineralisation
  • vital to the hydrosphere

Lithosphere- cycles through soil, sedimentary rock

Biosphere- cycles through plants, microorganisms, animals

Hydrosphere- sediment rock at bottom of ocean, transfers to lithosphere

Inputs/Outputs: calcium is

outputted from ocean, the inputted

into lithosphere

Sources

http://education.jlab.org/itselemental/ele020.html

Reduction of Human Interferences

http://www.eco-gem.com/calcium-cycle/

  • less leaching/mining of calcium

http://www.yale.edu/ynhti/curriculum/units/1985/7/85.07.08.x.html

http://www.science20.com/news_releases/ocean_calcium_cycle_more_fragile_expected_and_climate_change_getting_blame

How is it derived?

Human Interference

https://www.mineralseducationcoalition.org/elements/calcium

  • weathered from rock
  • leaching= mining for calcium

What part is faster/slower?

  • cycling between soluble/insoluble= fast
  • weathered from rock= slow
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