『Abstract
　Through an integrated experimental approach, utilizing both vertical scanning interferometry (VSI) and atomic force microscopy (AFM), we have been able to directly link calcite (104) dissolution rates over multiple spatial and temporal scales. By adjusting the concentration of Sr²⁺ in both CO2-saturated and CO2-free solutions, we have determined that “rough” step edge retreat across the surface controls the rate of overall dissolution. An exciting result of our study is that measurements of rough step velocity can be directly correlated with rates of calcite (104) surface-normal retreat. The effect of added Sr²⁺ on the dissolution kinetics of calcite is variable, depending on the presence or absence of dissolved inorganic carbon (DIC). Results show that, under CO2-saturated conditions and pH 8.6 to 8.9, increases in Sr²⁺ concentration lead to decreased etch pit growth rate and reduced etch pit density, resulting in a partial passivation of the crystal surface. An important results is that these events seemingly have little effect on the rates of overall dissolution, supporting our suggestion that the dissolution mechanism is controlled by rough step retreat.』

Introduction
　General considerations
　Impurity-calcite interactions
Materials and methods
　VSI experiments
　AFM experiments
Results
　AFM experiments
　　Na2CO3 solutions
　　NaCl solutions
　VSI experiments
　　Na2CO3 solutions
　　NaCl solutions
Discussion
　The calcite (104) dissolution mechanism
　Relationship of dissolution rates measured by VSI and AFM
　Effect of Sr²⁺ on dissolution rates and surface morphologies
　　Calcite surface passivation
　　Step edge inhibition
　　Sr²⁺ uptake on CO2-saturated solutions
Summary and conclusions
Acknowledgments
References