Beryllium diffusion in olivine: a new tool to investigate timescales of magmatic processes
The diffusion of beryllium (Be) in pure synthetic forsterite (fo₁₀₀) and San Carlos olivine (fo₉₀) was studied between 950–1475◦C at atmospheric pressure, as a function of silica activity (aSiO₂), crystallographic orientation, oxygen fugacity (fO₂, for diffusion in San Carlos olivine) and water fugacity (fH₂O, at 1.15 GPa pressure (P)). The diffusivity of Be in olivine is faster than that of Mg²+or Fe²+but slower than that of H⁺, and appears to be insensitive to aSiO₂, fH₂O and P, but is highly...[Show more]
|Collections||ANU Research Publications|
|Source:||Earth and Planetary Science Letters|
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