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![Fig. 4. Schematic illustration of the evolution of [A] fl for...](profile/Martin-Engi/publication/237817465/figure/fig3/AS:669478908096527@1536627618706/Schematic-illustration-of-the-evolution-of-A-fl-for-heat-flow-controlled-porphyroblast_Q320.jpg)
Insight into the crystallization of metamorphic porphyroblasts (e.g. garnet) cannot be gained by direct observation, but relies on information derived from the products of crystallization processes. In the literature two methods are used to derive such information: a) the spatial distribution of grains, and b) crystal size distributions (CSD). Mode...
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... crystallization yields a CSD with increasing frequencies towards smaller grain size classes and a non-ordered arrangement of grains . However, quantitative textural data (QTD) for the Alpine samples exhibit bell-shaped CSD ( Figs 2 & 11) and a random dispo- sition of grains (Table 1). More details about acquisi- tion of garnet QTD are given in Schwarz (2008). ...
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