1-1-1-1-1-1-1-1-1-1-1-1-1-1 From: "Dzurisin, Daniel" <dzurisin@xxxxxxxx> *Announcing the 2020 Kleinman Grants for Volcano Research* The Community Foundation for Southwest Washington announces the following students have been awarded 2020 Kleinman Grants for Volcano Research. Jack Kleinman was a USGS employee at the David A. Johnston Cascades Volcano Observatory (CVO) who died in a kayaking accident in 1994. By supporting field-oriented research projects in volcanology, the Kleinman Grants memorialize Jackâ??s exuberance for fieldwork, volcanoes, and the natural world. During the past 25 years, the program has helped more than 100 aspiring volcanologists who seek to learn more about volcanoes, how they work, and how to mitigate the associated hazards. *Emma Burkett *is an M.S. student at the University of New Hampshire (Julia Bryce, adviser). Her research project â??Assessing Magma Storage Extent within Crust at Augustine Volcanoâ?? is aimed at better understanding the dynamics of Augustineâ??s magmatic system. She plans to combine information gleaned from field observations and trace-element diffusion modeling of plagioclase and pyroxene crystals to: 1) evaluate the pacing of magma accumulation, 2) compare timeline reconstructions with monitoring data with the goal of relating above-ground indications of volcanic activity to magmatic processes below, and 3) assess the vertical extent of the magma storage-and-transport system beneath the volcano. Ultimately, the goal is to learn how magmatic systems evolve, under what conditions volcanoes erupt, and how eruptions and volcano hazards develop. The project will be carried in collaboration with Dr. Jessica Larsen at the University of Alaska Fairbanks. *Annika Dechert* is a graduate student at the University of Oregon (Josef Dufek, adviser). Her project â??Numerical Modeling of Zircons at the Three Sisters, ORâ?? will provide more detailed information on the eruptive history of South Sister volcano by determining zircon ages for a broad suite of samples that represent a temporal span through the late Pleistocene and Holocene. To interpret the zircon age populations in terms of magma reservoir-scale dynamics and evolution, Annika will use a 3D multiphase model that connects the growth of zircon crystals to the chemical, thermal, and physical timeline of the magma system. Her work promises new insight into the state of South Sisterâ??s magma system through time, including volume; longevity; proportion of solids, melt, and fluid; chemical composition; and temperature. The research is a collaborative effort with Nathan Andersen (USGS) and Hélène Le Mével (Carnegie Institution). *Marie Takach* is a Ph.D. candidate at Oregon State University (Frank Tepley, adviser). The ultimate goal of her project â??Explosive Mixed Tephra Deposits Reveal their Pre-Eruptive Origins (El Misti Volcano, Peru)â?? is to determine the root cause of eruption triggers at El Misti, a historically active, explosive volcano that threatens Arequipa, Peru, a city with one million inhabitants. Marie plans to; 1) Use geochemical analyses of glasses and minerals to document end-member magma compositions; 2) Apply various geothermobarometers to describe pre-eruptive magma storage conditions each known eruption; 3) Assess for the presence and degree of magma mixing/mingling; 4) Test timeframes between episodes of magma mixing/mingling and eruption by modeling plagioclase trace element diffusion; and 5) Quantify the time elapsed between explosive eruptions and evaluate the magma storage timescales using U-series and 40Ar-39Ar geochronology. Field work and research will be done in collaboration with Christopher Harpel (USGS, VDAP). *Joshua Wiejaczka* is a Ph.D. candidate at the University of Oregon, working under the supervision of Thomas Giachetti (adviser). With his project â??Plinian to effusive to caldera-forming: eruptive intensity transitions of the 7.7 ka Cleetwood and Climactic eruption of Crater Lake, Oregon, USAâ??, Josh hopes to link shifts in eruption dynamics that occurred during the end of the Cleetwood eruption with the initiation of the subsequent caldera-forming eruption of Mount Mazama/Crater Lake. He proposes to accomplish that goal by analyzing stratigraphic changes in particle size distribution, shape, texture, porosity, and componentry that occur throughout the products of both eruptions. In addition, Josh plans to analyze porosity, permeability, and bubble size distribution of pumices with a helium pycnometer, capillary flow porometer, and SEM, respectively. Ultimately, the goal of his research is to understand why the Cleetwood eruption was followed very quickly by caldera collapse to form modern-day Crater Lake, whereas other Plinian eruptions of comparable size elsewhere were not. Josh has been coordinating his plans with Charlie Bacon (USGS). 1-1-1-1-1-1-1-1-1-1-1-1-1-1 ------------------------------
