Abstract Details
(2020) Symplectite Formation in Paragneiss Restites from the Gföhl Unit, Bohemian Massif
Sorger D, Hauzenberger CA, Finger F & Linner M
https://doi.org/10.46427/gold2020.2440
The author has not provided any additional details.
04h: Room 5, Thursday 25th June 22:09 - 22:12
Dominik Sorger
View abstracts at 3 conferences in series
Christoph A. Hauzenberger View abstracts at 2 conferences in series
Fritz Finger
Manfred Linner View abstracts at 3 conferences in series
Christoph A. Hauzenberger View abstracts at 2 conferences in series
Fritz Finger
Manfred Linner View abstracts at 3 conferences in series
Listed below are questions that have been submitted by the community that the author will try and cover in their presentation. To submit a question, ensure you are signed in to the website. Authors or session conveners approve questions before they are displayed here.
Submitted by Shah Wali Faryad on Tuesday 23rd June 15:03
ymplectite Formation in Paragneiss Restites from the Gföhl Unit, Bohemian Massif Sorger D, Hauzenberger CA, Finger F & Linner M You have nice compositional zoning garnet. I see that you used grs content for your pressure estimate, which is fine. But the lowest grs in your annuli garnet is about 12 mol % and the highest about 25 mol%. Based on this, your core garnet should give about 0.7 GPa at 550oC based on your pseudosection and maybe more than 2 GP, if you assume the rim was formed at 750 oC or higher.
Unfortunately, the label seems to be missing, but the values for grs are shown on the secondary y-axis on the right side of the garnet profile diagrams. So the grs values are only 3 to 5 mol% in the cores and 5 to 9 mol% in the annuli.
ymplectite Formation in Paragneiss Restites from the Gföhl Unit, Bohemian Massif Sorger D, Hauzenberger CA, Finger F & Linner M You have nice compositional zoning garnet. I see that you used grs content for your pressure estimate, which is fine. But the lowest grs in your annuli garnet is about 12 mol % and the highest about 25 mol%. Based on this, your core garnet should give about 0.7 GPa at 550oC based on your pseudosection and maybe more than 2 GP, if you assume the rim was formed at 750 oC or higher.
Unfortunately, the label seems to be missing, but the values for grs are shown on the secondary y-axis on the right side of the garnet profile diagrams. So the grs values are only 3 to 5 mol% in the cores and 5 to 9 mol% in the annuli.
Submitted by Freya George on Thursday 25th June 16:43
Thanks for uploading an interesting presentation Dominik! Some really beautiful microstructures, which are always great to see. For your symplectite modelling, how did you go about deciding on a bulk composition? This is obviously super important when applying equilibrium approaches to disequilibrium microstructures, in particular. Were the chemical compositions in the lamellate spatially heterogeneous?
Thanks for uploading an interesting presentation Dominik! Some really beautiful microstructures, which are always great to see. For your symplectite modelling, how did you go about deciding on a bulk composition? This is obviously super important when applying equilibrium approaches to disequilibrium microstructures, in particular. Were the chemical compositions in the lamellate spatially heterogeneous?
Sign in to ask a question.