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Dear Colleagues, Apologies for cross-posting. Please consider submitting in an abstract for our AGU session: V025. Partial Melting During High-Grade Metamorphism: Implications for Orogenic Systems. During orogenesis, deep crustal rocks commonly reach pressure–temperature conditions sufficient for partial melting to occur, either during burial or exhumation. The presence of melt has major rheologic implications for mountain building, as it changes the viscosity, density, and how strain is partitioned during orogenesis. In addition, melt extraction and magma emplacement contribute to crustal differentiation and stabilization over geologic time. These combined processes may also drive the collapse and exhumation of orogenic belts, and aid in exhuming (ultra)high-pressure terranes. This session seeks contributions that investigate the quantity, timing, and/or conditions at which partial melting occurs in different geodynamic environments, and the implications that anatexis has on the evolution of orogenic belts and subducted crustal material. We encourage abstracts that use a variety of techniques, such as field mapping, phase equilibria modeling, geochronology, geochemistry, and geodynamic and/or geophysical modeling. Confirmed invited speakers include: Gautier Nicoli (University of Cambridge) and Jamie Levine (Appalachian State). The abstract deadline is Wednesday, August 2nd. Please contact me with any questions. Cheers, The Conveners: Stacia Gordon (University of Nevada-Reno) Richard Palin (Colorado School of Mines) Chris Yakymchuk (University of Waterloo)