15-05-2015, 04:10 PM
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