Title
Comment on " Volume of magma accumulation or withdrawal estimated from surface uplift or subsidence, with application to the 1960 collapse of Kīlauea volcano" by P. T. Delaney and D. F. McTigue
Document Type
Editorial
Department or Administrative Unit
Geological Sciences
Publication Date
1-2000
Abstract
In volcanoes that store a significant quantity of magma within a subsurface summit reservoir, such as Kīlauea, bulk compression of stored magma is an important mode of deformation. Accumulation of magma is also accompanied by crustal deformation, usually manifested at the surface as uplift. These two modes of deformation – bulk compression of resident magma and deformation of the volcanic edifice – act in concert to accommodate the volume of newly added magma. During deflation, the processes reverse and reservoir magma undergoes bulk decompression, the chamber contracts, and the ground surface subsides. Because magma compression plays a role in creating subsurface volume to accommodate magma, magma budget estimates that are derived from surface uplift observations without consideration of magma compression will underestimate actual magma volume changes.
Recommended Citation
Johnson, D. J., Sigmundsson, F., & Delaney, P. T. (2000). Comment on “ Volume of magma accumulation or withdrawal estimated from surface uplift or subsidence, with application to the 1960 collapse of Kīlauea volcano” by P. T. Delaney and D. F. McTigue. Bulletin of Volcanology, 61(7), 491–493. https://doi.org/10.1007/s004450050006
Journal
Bulletin of Volcanology
Rights
© Springer-Verlag 2000
Comments
This article was originally published in Bulletin of Volcanology. The full-text article from the publisher can be found here.
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