From Millennia to Minutes: Life Cycles of Volcanoes and Eruptions

Arc volcanoes often show evidence for new magma coming from the lower crust and interacting with old magma in the shallow crustal storage system. This presentation examines the interplay of old and new magma, and the importance of collecting samples during an eruption and over longer periods to create time series information that can reveal where a volcano is in its life cycle, and how the volcano might respond to the introduction of new magma. This virtual presentation was given at the American Geophysical Union (AGU) Fall meeting.