Early diagenesis of calcium carbonate in Long Island Sound Sediments: Benthic fluxes of Ca~2+ and minor elements During seasonal periods of net dissolution

摘要

The present study confirms the quantitative significance of carbonate dissolution for associated major and minor element solute fluxes in shelf deposits of temperature regions. Multiple measurement techniques all demonstrate that net dissolution of CaCO_3 dominates during winter in Long Island Sound Sediments and results in large fluxes of Ca~2+, Sr~2+,. And F~- out of the seafloor. Ca~2+ fluxes Averaged from 4 independent methods range from ～5 to ～13 mmol m~-2 d~-1 with highest flux Occurring when surface deposits are most under saturated with respect to common biogenic carbon- Ates.