Philippe Agard is Professor of Petrology and he chairs the German collaborative project Mountain­Building in 4 Geodynamics at the Sorbonne University (Paris, Dimensions. His current interest is in linking mantle structure with France) and a fellow of Academia Europaea and the the crustal evolution of the Alps. Institut Universitaire de France. He received his Paola Manzotti is an assistant professor at doctorate from the École normale supérieure and Stockholm University (Sweden). After completing the Pierre and Marie Curie University (Paris). His her PhD at the University of Bern (Switzerland) in field areas have included the European Alps, Iran, 2012, she worked at the University of Rennes Oman, and China, and he combines metamorphic petrology and tec­ (France) for three years, then she was awarded a tonics to investigate regional­scale geodynamics and processes associ­ Swiss NSF Ambizione Fellowship at the University ated with subduction, obduction and strain (de)localization. His present of Lausanne (Switzerland). Her research focuses on interest is in unravelling the former structure and rheology of the sub­ the mechanisms of mountain building and, especially, on the rock duction plate interface, most notably in the Alps. record of burial and exhumation cycles. She combines fieldwork, meta­ morphic petrology, and geochronology in order to decipher the complex Matteo Alvaro is a mineral physicist and Professor evolution of subducted continental crust. of Mineralogy at the University of Pavia (Italy). He characterizes minerals and their inclusions in the Anders McCarthy obtained his PhD from the deep Earth to shed light on subduction mecha­ University of Lausanne (Switzerland) in 2016. He nisms, the depths reached by subduction, and the was a postdoctoral fellow at the University of Bristol depth of diamond formation and growth. He com­ (UK) and the University of Tasmania (Australia) bines petrology, mineral physics, and crystallog­ until 2020 and was awarded a Swiss NSF Ambizione raphy to unravel the complex geological processes that are hidden in Fellowship, which he will start at ETH Zürich in mineral grains, from the microscopic scale down to the atomic level. 2021. He is the recipient of the 2020 Paul Niggli Medal. He has a background in igneous petrology, geochemistry, and Jonathan D. Blundy is an igneous petrologist. He field geology. His research is focused on the evolution of ultra­slow studied for a bachelor’s degree in geology at the mid­ocean spreading systems and the inception of subduction. He is University of Oxford (UK) (1983) and for a PhD at currently working on the evolution of marginal basins in the southwest the University of Cambridge (UK) (1989) on the Pacific. Anders also researches the timescales of magmatic and subvol­ granites of the southern Adamello Massif (Italy). canic processes, including the formation of vertical igneous layering Jon is interested in all things magmatic, from in shallow plutons. magma generation in the crust and mantle to active volcanoes and hydrothermal mineralisation. He approaches his research Geoffroy Mohn is, since 2012, an associate pro­ using a combination of field observations, thermodynamics, micro­ fessor in tectonics at CY Cergy Paris University beam analysis, and high pressure–temperature experiments. After 31 (France). He obtained his PhD from the University years at the University of Bristol (UK), Jon moved to University of Oxford of Strasbourg (France) in 2010 followed by a post­ (UK) in July 2020 as a Royal Society Research Professor. He researches doctoral scholarship between the University of the relationship between subvolcanic processes and ore formation, with Strasbourg, the University of Lausanne (Switzerland) a particular emphasis on developing novel, sustainable methods for and EXXONMOBIL­Upstream Research Company metals exploration and recovery. Jon was principal editor for petrology in Houston (Texas, USA). His research focuses on the mechanisms of at Elements from 2018 to 2021. continental lithospheric thinning and breakup and the associated sedi­ mentary record by using offshore and onshore case studies. He also Matthew Fox works on landscape evolution and investigates the interaction between hyperextension and evaporite/salt geodynamics as a NERC Independent Research deposition and the effect of mobile salt on the stratigraphic architecture Fellow and a lecturer at University College London of rift basins. (UK). He has been studying the Alps since moving to ETH Zürich (Switzerland) in 2008. During his Othmar Müntener is a professor of petrology at PhD, he worked on collecting new data from the the University of Lausanne (Switzerland). He Bergell Intrusion (Swiss Italian Alps) and inter­ received his PhD (1997) from ETH Zürich preting the dense Alpine dataset that is the result of over four decades (Switzerland). He joined the faculty of Earth and of thermochonometric work. Since then, he has worked on many moun­ Environmental Sciences in Lausanne in 2006, after tain belts and in other locations with dramatic scenery, such as the research stays at the Massachusetts Institute of Grand Canyon (USA) and the Antarctic Peninsula. Across these natural Technology (USA), Woods Hole Oceanographic laboratories, he combines thermochronometry, landscape evolution, Institute (USA), University of Neuchâtel (Switzerland), and University inverse methods, and trail running to understand Earth’s dynamic of Bern (Switzerland). He is a petrologist by training, combining field surface. studies, geochemistry, and experimental petrology. He is interested in magmatic aspects of geological processes, from melt production in the Mark R. Handy is a professor of tectonophysics at mantle to emplacement in the crust. He conducts field work in the Alps, the Freie Universität Berlin (Germany) and lecturer Patagonia, and the Himalayas, with a focus on subduction­related mag­ in alpine geodynamics at the ETH Zürich matic arcs and the evolution of continental crust and ocean–continent (Switzerland). Since postgraduate studies at the transitions. His current interest is in timescales of felsic plutonic University of Basel (PhD) and Imperial College systems. London (UK), he has pursued research on the rhe­ ology of fault rocks and the geodynamics of moun­ tain building. He has investigated the flow of polyphase materials and its application to lithospheric rheology. His work on the Alpine­ Mediterranean chains has focused on rifting, subduction, and collision. He is a founding member of the AlpArray seismological initiative, and ELEMENTS 6 FEBRUARY 2021 Elisabetta Rampone is a professor of petrology at Julie Tugend obtained her PhD from the University the Department of Earth, Environment and Life of Strasbourg (France) in 2013, which included work Science (DISTAV) of the University of Genoa (Italy). at the University of Liverpool (UK). As a postdoc­ She previously worked as a researcher and associate toral research fellow at the École normale supéri­ professor at the Universities of Milano Statale and eure in Paris (France) she investigated the struc­ Milano­Bicocca (1996–2001). She obtained her PhD tural, magmatic, and stratigraphic interplay at from the University of Genoa and developed part rifted margins by coupling seismic and field obser­ of her PhD project at the Max Planck Institute for Chemistry in Mainz vations to geophysical and geodynamic quantitative analyses. Based (Germany). She is Editor in Chief of the European Journal of Mineralogy on her multidisciplinary approach, she aims to bring a new perspective and Petrology. Her scientific interests focus on the petrology and geo­ to the 3D spatial and temporal variability of rifting processes and their chemistry of mantle peridotites and ophiolites. This field­based research subsequent role in passive margin architecture and the dynamics of addresses the mechanisms of magma production, melt percolation and convergence. melt–peridotite interaction in the oceanic mantle, and the building Peter Ulmer and evolution of oceanic crust. is associate professor of igneous and experimental petrology at the Department of Earth Alessio Sanfilippo is a researcher at the Department Sciences at ETH Zürich (Switzerland) where he of Earth and Environment Science of the University obtained his PhD (1986) on a study of the Tertiary of Pavia (Italy), where he earned his PhD in 2012. Adamello batholith in Northern Italy. After a post­ He previously worked as a visiting PhD student and doctoral fellowship at the Geophysical Laboratory, a post­doc at the Woods Hole Oceanographic Carnegie Institution of Washington (USA), he Institution (Massachusetts, USA) and as a Japan returned to ETH Zürich as a staff member. His research is focused on Society for the Promotion of Science Postdoctoral the generation, differentiation, and transport of magmas from their Fellow at Kanazawa University (Japan). He researches the origin of sources to shallow crustal emplacement. He combines experimental mantle and crustal rocks from the oceanic crust–mantle boundary, petrology, geochemistry, and field studies. Research includes phase coupling studies on Alpine ophiolites with modern mid­ocean ridges. equilibria studies of primitive to evolved magmas in a variety of tectonic Recently, he has investigated the isotopic evolution of the subridge settings; transport, storage, and composition of fluids in subduction mantle, including case studies from the equatorial Atlantic Ocean, the zones and in magmas; rheology of crystal­bearing magmas; partitioning Arctic Ocean,