caa a22 4500 465791603 CHVBK 20180323112026.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF00286832 doi (NATIONALLICENCE)springer-10.1007/BF00286832 The effect of post-growth thermal events on growth-zoned garnet: implications for metamorphic P-T history calculations [Elektronische Daten] [Jianxin Jiang, Antonio Lasaga] We present a simple diffusion model for investigation of the effect of a post-growth thermal history on growth-zoned minerals. The model treats the mineral as a chemically closed system. Our treatment incorporates the effects of any thermal history into one essential parameter. We then demonstrate that the usability of zoned minerals in metamorphic P-T history calculations depends on the mineral grain size and the post-growth thermal history. Using garnet as an example, we show that while large garnets (>1 mm) are safe to use, garnets smaller than that that have experienced temperatures characteristic of upper greenschist or lower amphibolite facies metamorphism will yield seriously misleading information. The deviation of the calculated growth history from the true growth history can be greater than 100° C and is the greatest for the early part of the garnet history. Springer-Verlag, 1990 Jiang Jianxin Department of Geology and Geophysics, Yale University, 06511, New Haven, CT, USA aut Lasaga Antonio Department of Geology and Geophysics, Yale University, 06511, New Haven, CT, USA aut Contributions to Mineralogy and Petrology Springer-Verlag 105/4(1990-09-01), 454-459 0010-7999 105:4<454 1990 105 410 https://doi.org/10.1007/BF00286832 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00286832 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jiang Jianxin Department of Geology and Geophysics, Yale University, 06511, New Haven, CT, USA aut NATIONALLICENCE 700 1- Lasaga Antonio Department of Geology and Geophysics, Yale University, 06511, New Haven, CT, USA aut NATIONALLICENCE 773 0- Contributions to Mineralogy and Petrology Springer-Verlag 105/4(1990-09-01), 454-459 0010-7999 105:4<454 1990 105 410 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer