Magma transport and storage through the Earth’s crust
Volcanoes are the lifeblood of the planet; the earth’s atmosphere, oceans, and crust are all made of materials that were delivered from the mantle to the surface through volcanoes. Fluids in the lithosphere directly influence magmatism, especially at subduction zones where most explosive volcanic eruptions take place. This combination of magmatism and a shallow water cycle promotes life, plate tectonics, weathering-climate feedbacks, and the formation of economically critical ore deposits.
My research group is focused on answering one of the most important questions in earth science: How are magmas and fluids transported and stored throughout the crust and how do they interact?
Our primary methods of research include:
Field-based geological investigations
Development of physics-based models
Integration of geophysical and geological data through numerical models
Publications
Timescales of dike growth and chamber deflation constrain magma storage and transport pathways during Kīlauea’s 2018 lower East Rift Zone intrusion
Meredith Townsend, Mong-Han Huang
Journal of Geophysical Research: Solid Earth, 2022Linking surface deformation to thermal and mechanical magma chamber processes
Meredith Townsend
Earth and Planetary Science Letters, 2022The build-up and triggers of volcanic eruptions
Luca Caricchi, Meredith Townsend, Eleonora Rivalta, Atsuko Namiki
Nature Reviews Earth & Environment, 2021A critical magma chamber size for volcanic eruptions
Meredith Townsend, Christian Huber
Geology, 2020Optimal depth of subvolcanic magma chamber growth controlled by volatiles and crust rheology
Christian Huber, Meredith Townsend, Wim Degruyter, Olivier Bachmann
Nature Geoscience, 2019Magma chamber growth during intercaldera periods: Insights from thermo‐mechanical modeling with applications to Laguna del Maule, Campi Flegrei, Santorini, and Aso
Meredith Townsend, Christian Huber, Wim Degruyter, Olivier Bachmann
Geochemistry, Geophysics, Geosystems, 2019Fluid-filled fractures in Earth's lithosphere: gravitational loading, interpenetration, and stable height of dikes and veins
David D Pollard, Meredith Townsend
Journal of Structural Geology, 2018Modeling Thermal Pressurization Around Shallow Dikes Using Temperature‐Dependent Hydraulic Properties: Implications for Deformation Around Intrusions
Meredith Townsend
Journal of Geophysical Research Solid Earth, 2018Mechanical models for dikes: a third school of thought
Meredith Townsend, David D Pollard, Richard P Smith
Tectonophysics, 2017Jointing around magmatic dikes as a precursor to the development of volcanic plugs
Meredith Townsend, David D Pollard, Kendra Johnson, Cansu Culha
Bulletin of Volcanology, 2015