Dear colleagues, *apologies if you receive this announcement more than once.* We invite you and your students to submit an abstract to our session "*T30. Granites and Rhyolites as a Record of Crustal Magmatic Processes*" (description provided below) at the upcoming *North-Central Section GSA meeting in Grand Rapids, Michigan (May 4-5th, 2023).* *Please go to: * *https://www.geosociety.org/GSA/Events/Section_Meetings/GSA/Sections/nc/2023mtg/techprog.aspx <https://www.geosociety.org/GSA/Events/Section_Meetings/GSA/Sections/nc/2023mtg/techprog.aspx> * to submit an abstract by *Feb. 7, 2023, 11:59 pm PST*. Technical Sessions - North-Central Section Meeting - 2023 <https://www.geosociety.org/GSA/Events/Section_Meetings/GSA/Sections/nc/2023mtg/techprog.aspx> Technical Sessions. Please direct questions related to the following sessions to the Technical Program chair, Kevin Mickus, kevinmickus@missouristate.edu. Call for Papers. Abstracts deadline: 7 Feb. 2023, 11:59 p.m. PST Abstract submittal fee: GSA members: professionals: US$30; students: US$18. Non-members: professionals: US$60; students: US$36. www.geosociety.org *T30. Granites and Rhyolites as a Record of Crustal Magmatic Processes* Felsic magmatism, both in the crust and on the surface, have a wide range of magma sources and processes representing the diversity of crustal igneous systems. We seek contributions investigating the complexities of crustal magmatism. Contributions exploring processes, time scales, and ore-related deposits related to granites and rhyolites are particularly welcome. Regards, Ken Brown (DePauw University) Gary Michelfelder (Missouri State University) -- Kenneth Brown, PhD. DePauw University Department of Geosciences 2 E. Hanna Street Greencastle, IN 46135 Ph: 765.658.6767 (he/him/his)