%0 Journal Article %A Gasc, Julien %A Brunet, Fabrice %A Brantut, Nicolas %A Corvisier, Jérôme %A Findling, Nathaniel %A Verlaguet, Anne %A Lathe, Christian %T Effect of Water Activity on Reaction Kinetics and Intergranular Transport: Insights from the Ca(OH)<sub>2</sub> + MgCO<sub>3</sub> → CaCO<sub>3</sub> + Mg(OH)<sub>2</sub> Reaction at 1·8 GPa %J Journal of petrology %V 57 %N 7 %@ 1460-2415 %C Oxford %I Oxford Univ. Press %M PUBDB-2016-04578 %P 1389 - 1408 %D 2016 %Z (c) The Author. Published by Oxford University Press %X The kinetics of the irreversible reaction Ca(OH) 2 + MgCO 3 → CaCO 3 + Mg(OH) 2 were investigated at high pressures and temperatures relevant to metamorphic petrology, using both in situ synchrotron X-ray diffraction and post-mortem analysis of reaction rim growth on recovered samples. Reaction kinetics are found to strongly depend on water content; comparable bulk-reaction kinetics are obtained under water-saturated (excess water, c. 10 wt %F PUB:(DE-HGF)16 %9 Journal Article %U <Go to ISI:>//WOS:000383734100006 %R 10.1093/petrology/egw044 %U https://bib-pubdb1.desy.de/record/311029