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(2020) The Contribution of Crust to the Genesis of Rhyolitic Magma from the Hime-Shima Volcanic Group

Hirayama T, Shibata T & Yoshikawa M

https://doi.org/10.46427/gold2020.1030

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05d: Room 2, Friday 26th June 06:24 - 06:27

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 Georg F. Zellmer on Monday 22nd June 05:49
Dear Hirayama-san, thank you for your interesting pdf-presentation. I am wondering if you have tried to plot Sr-isotopes versus 1/Sr? Mixing should be a straight line on this diagram. Also, I am wondering what amount of assimilation of the granitic basement is required to make the rhyolites from the dacites? Do you consider bulk mixing through assimilation of crystal cargo, or partial melting of the basement, and if partial melting, where does the heat come from? Is the dacite hot enough to partially melt the granite? Thank you! Georg


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