All Outputs (2)

The influence of moisture on ash strength: implications for understanding volcanic stratigraphy (2025)
Journal Article
Walding, N., Williams, R., Dowey, N., Rowley, P., Thomas, M., Osman, S., Johnson, M., & Parsons, D. R. (2025). The influence of moisture on ash strength: implications for understanding volcanic stratigraphy. Bulletin of volcanology, 87(6), Article 39. https://doi.org/10.1007/s00445-025-01821-4

Ash layers within extensive pyroclastic density current (PDC) deposits can be important in understanding the evolution of explosive eruptions. If interpreted as ashfall deposits, they may be used to identify hiatus episodes and determine how many pyr... Read More about The influence of moisture on ash strength: implications for understanding volcanic stratigraphy.

Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents (2022)
Thesis
Johnson, M. Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4320614

Pyroclastic density currents (PDCs) are hot, density-driven fast-moving flows of gas, rock and ash produced by volcanic events such as explosive eruptions, the fallback of eruption columns or the collapse of lava domes. They are deadly geological haz... Read More about Characterisation of reverse grading in ignimbrites through image analysis and experimental granular currents.