Magnesium aluminosilicate system

The dominance of carbonate hydrolysis, carbo-nation, and sulfide oxidation in subglacial weathering reactions on aluminosilicate/silicate bedrock is also found on carbonate bedrock. However, the balance between carbonate dissolution and sulfide oxidation depends on the spatial distribution of sulfides in the bedrock and basal debris (Fairchild et al., 1999). Noncongruent dissolution of strontium and magnesium from carbonate is also observed in high rock water weathering environments, such as the distributed drainage systems, in which water flow is also low (Fairchild et al., 1999). 

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