Supervolcanoes and their deposits: insights into the dynamics of large magma reservoirs
The vigor and size of volcanic eruptions depend on what happens in magma reservoirs in the Earths crust. When magmatic activity occurs within continental areas, large chambers of viscous but mobile, gas-rich magma can be generated and cataclysmically discharged into the atmosphere during explosive supereruptions. A possible hypothesis to explain the production of such large pools of explosive magma is by extracting interstitial liquid from long-lived crystal mushes (magmatic sponges containing >50 vol% of crystals) and collecting it in unstable liquid-dominated lenses. We will look at the rock record, blended with some modeling and geophysics, to further discuss such issues.
https://www.munich-geocenter.org/events/seminars/frontiers-in-earth-sciences-16/supervolcanoes-and-their-deposits-insights-into
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Supervolcanoes and their deposits: insights into the dynamics of large magma reservoirs
Abstract
The vigor and size of volcanic eruptions depend on what happens in magma reservoirs in the Earths crust. When magmatic activity occurs within continental areas, large chambers of viscous but mobile, gas-rich magma can be generated and cataclysmically discharged into the atmosphere during explosive supereruptions. A possible hypothesis to explain the production of such large pools of explosive magma is by extracting interstitial liquid from long-lived crystal mushes (magmatic sponges containing >50 vol% of crystals) and collecting it in unstable liquid-dominated lenses. We will look at the rock record, blended with some modeling and geophysics, to further discuss such issues.
