基于石榴石的变质岩年代学

程昊, 徐乃潇

Garnet Geochronology of Metamorphic Rocks

Hao Cheng, Naixiao Xu

图8 石榴石年龄与颗粒大小相关的扩散重置（据参考文献[7]修改） （a）大颗粒石榴石和小颗粒石榴石集合中内部裂隙分离开的小区域尺度的小提琴图； （b）定年结果指示石榴石生长的T-t过程的时间和事件记录，红色直线表示优选的T-t路径，不确定的部分用虚线标示

Fig.8 Diffusional resetting of garnet ages with varying radii（modified after reference [7]） (a) The violin plot of measured fraction sizes (radii) of the large garnet and a cluster of small euhedral grains, presenting the distribution of the length and probability density; (b) Summary of geochronological data reported in this study and interpreted T-t path. The red line indicates our preferred T-t path. When poorly constrained, the line is thick and dashed