Abstract
Emission of neutral atoms (K and Na) and molecules (H2O and KOH) observed during fracture of K-feldspar have been accounted for by two independent mechanisms. H2O and KOH emissions are attributed to the venting of fluid-filled inclusions, while emission of atomic K is due to surface effects accompanying cleavage of crystalline feldspar. The intensity of emitted potassium, at least 6 × 1014 atoms/cm2 of surface area, is sufficient to affect K activities in solution during microbrecciation in the presence of rock-dominated fluids.
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Dickinson, J.T., Jensen, L.C., Langford, S.C. et al. Fracture induced emission of alkali atoms from feldspar. Phys Chem Minerals 18, 453–459 (1992). https://doi.org/10.1007/BF00200968
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DOI: https://doi.org/10.1007/BF00200968