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452Episodes
Category: Science

A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world.

Episode 429 - Volcanic ash in our oceans and rafting in the air

May 3, 2021

Volcanic eruptions are incredibly powerful but not well understood. When a volcano erupts it can spread ash far and wide both in the ocean and in the air. What happens when a volcano erupts underwater? How much energy does an underwater volcano unleash? Where does all the energy in an underwater volcanic eruption go? Is it possible for volcanic ash to form and spread underwater? Just like jetstream currents in the air, volcanic ash can be carried far and wide in underwater eruptions. Volcanic ash can get held up by smaller particles, to raft long distances.

  1. T. Dürig, J. D. L. White, A. P. Murch, B. Zimanowski, R. Büttner, D. Mele, P. Dellino, R. J. Carey, L. S. Schmidt & N. Spitznagel. Deep-sea eruptions boosted by induced fuel-coolant explosions. Nature Geoscience, June 2020 DOI: 10.1038/s41561-020-0603-4
  2. Samuel S. Pegler, David J. Ferguson. Rapid heat discharge during deep-sea eruptions generates megaplumes and disperses tephra. Nature Communications, 2021; 12 (1) DOI: 10.1038/s41467-021-22439-y
  3. Eduardo Rossi, Gholamhossein Bagheri, Frances Beckett, Costanza Bonadonna. The fate of volcanic ash: premature or delayed sedimentation? Nature Communications, 2021; 12 (1) DOI: 10.1038/s41467-021-21568-8