Document Type
Article
Publication Date
2-16-2013
Abstract
Seiche waves in Yellowstone Lake with a ~78-minute period and heights ~30 km from the lake shore. By contrast, the observed far field strain amplitudes are consistent with the seiche load on a two-layered viscoelastic model representing an elastic upper crust overlying a partially molten body deeper than 3-6 km with Maxwell viscosity less than 1011 Pa s. These strain observations and models provide independent evidence for the presence of partially molten material in the upper crust, consistent with seismic tomography studies that inferred 10%-30% melt fraction in the upper crust. Key Points Strain induced by seiche waves in Yellowstone Lake is observed 30 km away Observed strainfield requires some support from an upper crustal magma reservoir Top of shallowest upper crustal partial melt is at 3 - 6 km depth ©2013. American Geophysical Union. All Rights Reserved.
Publication Source (Journal or Book title)
Geophysical Research Letters
First Page
501
Last Page
506
Recommended Citation
Luttrell, K., Mencin, D., Francis, O., & Hurwitz, S. (2013). Constraints on the upper crustal magma reservoir beneath Yellowstone Caldera inferred from lake-seiche induced strain observations. Geophysical Research Letters, 40 (3), 501-506. https://doi.org/10.1002/grl.50155