Coarsening kinetics of coexisting peristerite and film microperthite over 10 4 to 10 5 years

Abstract

Alkali feldspar crystals from the Klokken syenite pluton (South Greenland) have a coarse patch perthite exsolution texture, on the scale of hundreds of micrometers, produced by dissolution-repre-cipitation reactions at ~500 °C. We have discovered that Ab