Chemical Oceanography

Updated : 01-07-2017 Published : by :
Chemical Engineering Seminars

Marine Bio-geochemistry and Sedimentation Distribution of Marine Sediments  Carbonate Equilibrium and the CCD  Organic Carbon and Sedim...

Marine Bio-geochemistry and Sedimentation

  • Distribution of Marine Sediments 
  • Carbonate Equilibrium and the CCD 
  • Organic Carbon and Sediments
  • Bacterial Respiration and Subsurface Redox Zonation
  • Fe/Mn Nodule Formation

Dissolution of Carbonate at Depth

  • Chemical processes modify biological (biogenic) sediments through the dissolution of CaCO3 and opal silica in deep water.
  • Temperature and pressure play a role in increasing the corrosiveness of deep waters
  • The other major control on carbonate dissolution is due to the creation of CO2 by the oxidation of organic matter 
  • This creates bicarbonate ions at the expense of carbonate ions thereby driving the dissolution of carbonate tests.         

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