This eVolcano lecture on pyroclastic fall deposits is given by Samantha Engwell (British Geological Survey) and Julia Eychenne (Laboratoire Magmas et Volcans, France). It provides insights into the sedimentary and textural characteristics of tephra fall deposits, from the outcrop scale to the individual grain scale. It presents typical deposit trends and methods on how to use such trends to understand the eruption that produced them. A list of resources and references is provided to direct viewers to further relevant work and tools.
Acknowledgment: J. Eychenne and S. Engwell thank Eric Breard and Costanza Bonadonna for providing comments that greatly improved this lecture. They also thank Julien Monteux for invaluable support in editing the video lecture. S. Engwell was funded through the UK Natural Environment Research Council Rift Volcanism: Past, Present and Future (RiftVolc) project (grant NE/L013460/1).
The video provides a short introduction to magmatic volatiles and the basic chemical and petrological factors that control their solubility. Besides the two most common volatile species, water and carbon dioxide, the video discusses noble gases, sulfur, and chlorine. The viewer is…
Explosive volcanic eruptions can perturb the hydrology of landscapes downwind and downstream of volcanoes by damaging vegetation and depositing large amounts of volcaniclastic sediment. Fluxes of water and sediment from volcanically perturbed landscapes can increase substantially, prompting hazardous geomorphic responses…
Welcome to e-Volcano, an online platform for video lectures & brief perspectives in volcanology New technologies and computer programs have been significantly advancing our ways of teaching and learning in the past decades and new platforms have been created to provide…
This eVolcano lecture on pyroclastic fall deposits is given by Samantha Engwell (British Geological Survey) and Julia Eychenne (Laboratoire Magmas et Volcans, France). It provides insights into the sedimentary and textural characteristics of tephra fall deposits, from the outcrop scale…
The video provides a short introduction to magmatic volatiles and the basic chemical and petrological factors that control their solubility. Besides the two most common volatile species, water and carbon dioxide, the video discusses noble gases, sulfur, and chlorine. The viewer is…
Explosive volcanic eruptions can perturb the hydrology of landscapes downwind and downstream of volcanoes by damaging vegetation and depositing large amounts of volcaniclastic sediment. Fluxes of water and sediment from volcanically perturbed landscapes can increase substantially, prompting hazardous geomorphic responses…