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Taylor instability in rhyolite lava flowsA refined Taylor instability model is developed to describe the surface morphology of rhyolite lava flows. The effect of the downslope flow of the lava on the structures resulting from the Taylor instability mechanism is considered. Squire's (1933) transformation is developed for this flow in order to extend the results to three-dimensional modes. This permits assessing why ridges thought to arise from the Taylor instability mechanism are preferentially oriented transverse to the direction of lava flow. Measured diapir and ridge spacings for the Little and Big Glass Mountain rhyolite flows in northern California are used in conjunction with the model in order to explore the implications of the Taylor instability for flow emplacement. The model suggests additional lava flow features that can be measured in order to test whether the Taylor instability mechanism has influenced the flows surface morphology.
Document ID
19890052290
Document Type
Reprint (Version printed in journal)
Authors
Baum, B. A. (Georgia Institute of Technology Atlanta, United States)
Krantz, W. B. (Colorado, University Boulder, United States)
Fink, J. H. (Arizona State University Tempe, United States)
Dickinson, R. E. (National Center for Atmospheric Research Boulder, CO, United States)
Date Acquired
August 14, 2013
Publication Date
May 10, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF EAR-86-18365
CONTRACT_GRANT: NAGW-529
CONTRACT_GRANT: DE-FG02-85ER-43320
Distribution Limits
Public
Copyright
Other