Natasha Bawankule L&S Math & Physical Sciences
Investigating Magma Reservoirs feeding Kīlauea’s Southwest Rift Zone
Located on the southeast corner of the Island of Hawai’i, Kīlauea is one of the youngest volcanoes in the Hawaiian archipelago and is in the most voluminous shield-building stage. My research investigates the magma plumbing system beneath Kīlauea’s Southwest Rift Zone (SWRZ) during the Kealaalea eruptions (~1790–1808 CE). I use small pockets of fluid trapped within erupted crystals to determine magma storage depths and assess magma movement along the SWRZ. I also intend to examine the only eruptive vent formed along the Koa’e fault system, to investigate the role of this structural feature in controlling magma transport at Kīlauea. By analyzing crystal chemistry, morphology, and zoning, I will gain insight into reservoir conditions and magma ascent rates, offering constraints on eruption timescales. This research is significant because the SWRZ is understudied despite its hazards. My findings will enhance hazard assessments by improving models of magma transport and eruption precursors. This work will also provide insights into the structural collapse of large ocean island volcanoes, as the Koa’e fault zone (and magma flowing along it) is key to edifice collapse.
Message To Sponsor
I would like to extend my gratitude to my donor, Zara, for the opportunity to learn and explore new aspects of my research this summer. Your contribution has helped me develop essential analytical skills like programming and instrumentation skills like operating the scanning electron microscope. This experience has allowed me to guide my research further and helped me realize my passion for volcanology and igneous petrology.