Isolated ocean islands pose challenges for managing volcanic hazards because of their remote locations. Some, such as Ascension Island in the South Atlantic, have diverse hazards associated with variable magmatic compositions and eruptive styles, as evidenced by past volcanic deposits. In this context, zircon ages and compositions provide insights into the timing and nature of magma generation, storage, and eruption. Specifica...

Proximal deposits of small-volume trachytic eruptions are an under-studied record of eruption dynamics despite being common across a range of settings. The 59 ± 4 ka Echo Canyon deposits, Ascension Island, resulted from a small-volume explosive-effusive trachytic eruption. Variations in juvenile clast texture reveal changes in ascent dynamics and transitions in eruption style. Five dominant textural types are identified within...