Dissolution kinetics of experimentally shocked silicate minerals

Surface evolution of dissolving minerals investigated with a kinetic Ising model

“…The density of dislocations, however, has been found to exert no more than a weak influence on the surface area normalized dissolution rate when minerals have been dissolved in the laboratory (Casey et al, 1988;Cygan et al, 1989;Schott et al, 1989;Blum and Lasaga, 1990). The weakness of this relationship has been attributed to the relatively small fraction of surface sites whose reactivity is influenced by dislocations (Schott et al, 1989).…”

Dissolution rates of actinolite and chlorite from a whole-rock experimental study of metabasalt dissolution from 2 ≤ pH ≤ 12 at 25 °C

“…A large number of studies have focused on hornblende dissolution rates at ambient temperatures (Nickel, 1973;Cygan et al, 1989;Sverdrup, 1990;Swoboda-Colberg and Drever, 1993;Zhang, 1990;Zhang et al, 1993Zhang et al, , 1996Frogner and Schweda, 1998;Golubev et al, 2005;Givens and Brantley, unpublished 2 ). A limited number of studies have investigated the dissolution rates of other amphiboles including anthophyllite (Mast and Drever, 1987 at 22°C;Chen and Brantley, 1998) and tremolite (Schott et al, 1981;Rozalen et al, 2013).…”

Albite dissolution kinetics as a function of distance from equilibrium: Implications for natural feldspar weathering

“…Farfrom-equilibrium, feldspar dissolution kinetics have been studied extensively in the past resulting in a substantial database of dissolution rates. Most studies have employed flow-through reactors containing a mineral powder and have focused on the dependence of dissolution rates on a single parameter such as pH, temperature, concentration of inorganic cations, and dislocation density (e.g., Holdren and Berner, 1979;Wollast, 1984, 1985;Helgeson et al, 1984;Speyer, 1985a,b, 1987;Knauss and Wolery, 1986;Brantley et al, 1986;Brantley and Stillings, 1996;Mast and Drever, 1987;Suarez, 1988, 1992;Casey et al, 1988a,b;Talman and Nesbitt, 1988;Cygan et al, 1989;Murphy, 1989;Schweda, 1989;Oxburgh et al, 1994;Stillings and Brantley, 1995;Stillings et al, 1996;Stoessel and Pittman, 1990;White and Peterson, 1990;Muir and Nesbitt, 1991;Nesbitt et al, 1991;Rose, 1991;Huang and Longo, 1992;Ganor et al, 1995). The overall dissolution rates measured during these experiments were derived from changes in solution chemistry.…”