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Abstract Details

(2020) Consistent Magma Conditions at Mt Pinatubo, Philippines, over 2.5 m.y

Midea W & Hattori K

https://doi.org/10.46427/gold2020.1797

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William Midea
Keiko Hattori View abstracts at 10 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 Celestine Mercer on Tuesday 23rd June 21:06
Hi Mr./Ms. Midea, thank you for your poster presentation! Nicely done. Your results are very interesting, it's such a treat to have good P-T-fO2 constraints for magmas potentially parental to porphyry Cu-Au mineralization. It is interesting to me that Pinatubo's amphibole geochemical behavior could stay so remarkably consistent over 2.5 m.y. Do you plan any further geochemical analysis to track this behavior among the units you've studied? Do you plan to incorporate your findings with what is known about the sulfur fluxing events or degassing at Pinatubo (e.g., from apatite, anhydrite)? This timing seems key to determining when a porphyry Cu deposit may form from these magmas versus when a "potential porphyry-copper deposit has "gone up the tubes”" (Pasteris, 1996). And your P-T-fO2 information may be very important to understanding this potential. Thanks! -Celeste


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