V031:
The Mixing of Magmas: State of the Art and Future Perspectives





Session ID#: 23526

Session Description:
The mixing of magmas is a process commonly observed in both plutonic and volcanic rocks and, depending on the fluid dynamic regime, is controlled by stirring, stretching and diffusion. While increasing evidence points to magma mixing as a major process in the Earth system generating compositional diversity in magmas and frequently triggering volcanic eruptions, many first-order questions remain strongly debated: Which rheological conditions promote or inhibit mixing processes? What are the time-scales for magma mixing? How do geochemical heterogeneities produced by mixing processes influence the composition and textures of minerals? What is the physicochemical nature of mass transfer between end-members? Can magma mixing be used as a volcanic chronometer?

This session invites contributions on the structural, textural, and geochemical study of magma-magma interaction processes in the plutonic and volcanic environment. Contributions targeting the study of magma mixing through experiments as well as by theoretical and numerical modeling are also welcome.

Primary Convener:  Maurizio Petrelli, University of Perugia, Department of Physics and Geology, Perugia, Italy
Conveners:  Philipp Ruprecht, University of Nevada Reno, Geological Sciences & Engineering, Reno, NV, United States; Lamont -Doherty Earth Observatory, Palisades, NY, United States and Diego Perugini, University of Perugia, Department of Physics and Geology, Perugia, Italy
Index Terms:

3618 Magma chamber processes [MINERALOGY AND PETROLOGY]
3630 Experimental mineralogy and petrology [MINERALOGY AND PETROLOGY]
3640 Igneous petrology [MINERALOGY AND PETROLOGY]
8439 Physics and chemistry of magma bodies [VOLCANOLOGY]

Abstracts Submitted to this Session:

Xiang Ling, University of Houston, Earth and Atmospheric Sciences, Houston, TX, United States, Jonathan E Snow, University of Houston, Houston, TX, United States and Wynne Chin, University of Houston, Houston, United States
Maurizio Petrelli1, Stefano Rossi1, Daniele Morgavi1, Diego González-García1, Lennart Alexander Fischer2, Francesco P. Vetere1, Yannick Bussweiler3 and Diego Perugini1, (1)University of Perugia, Department of Physics and Geology, Perugia, Italy, (2)Leibniz University of Hannover, Hannover, Germany, (3)TOFWERK AG, Thun, Switzerland
Adrian Fiege, American Museum of Natural History, Earth and Planetary Sciences, New York, NY, United States, Philipp Ruprecht, University of Nevada Reno, Geological Sciences & Engineering, Reno, NV, United States, Adam Charles Simon, University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States and Francois Holtz, Leibniz University of Hannover, Institute of Mineralogy, Hannover, Germany
Steve Fox, Ben-Gurion University of the Negev, Geological and Environmental Sciences, Beer Sheva, Israel and Yaron Katzir, Ben-Gurion University of the Negev, Beer Sheva, Israel
Helen Deborah Gall1, Jacob Henry Cipar1, Katherine L Crispin2, Biltan Kürkçüoğlu3 and Tanya Furman1, (1)Pennsylvania State University Main Campus, Geoscience, University Park, PA, United States, (2)Pennsylvania State University Main Campus, Materials Characterization Laboratory, University Park, PA, United States, (3)Hacettepe University, Ankara, Turkey
Edgardo Canon-Tapia, CICESE, Ensenada, Mexico and M Irene B Raposo, USP University of Sao Paulo, São Paulo, Brazil
George E. Daly, Miami University Oxford, Geology & Environmental Earth Science, Oxford, OH, United States and Elisabeth Widom, Miami Univ, Oxford, OH, United States
Jacob Brinkman, Saint Louis, MO, United States; Saint Louis University, Earth and Atmospheric Sciences, Saint Louis, MO, United States and John P Encarnacion, Saint Louis Univ, Saint Louis, MO, United States