The Fascinating and Complex Dynamics of Geyser Eruptions

The Fascinating and Complex Dynamics of Geyser Eruptions Geysers episodically erupt liquid and vapor. Despite two centuries of scientific study, basic questions persistwhy do geysers exist? What determines eruption intervals, durations, and heights? What initiates eruptions? Through monitoring eruption intervals, analyzing geophysical data, taking measurements within geyser conduits, performing numerical simulations, and constructing laboratory models, some of these questions have been addressed. Geysers are uncommon because they require a combination of abundant water recharge, magmatism, and rhyolite flows to supply heat and silica, and large fractures and cavities overlain by low-permeability materials to trap rising multiphase and multicomponent fluids. Eruptions are driven by the conversion of thermal to kinetic energy during decompression. Larger and deeper cavities permit larger eruptions and promote regularity by isolating water from weather variations. The ejection velocity may be limited by the speed of sound of the liquid vapor mixture. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Earth and Planetary Sciences Annual Reviews

The Fascinating and Complex Dynamics of Geyser Eruptions

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Publisher
Annual Reviews
Copyright
Copyright 2017 by Annual Reviews. All rights reserved
ISSN
0084-6597
eISSN
1545-4495
D.O.I.
10.1146/annurev-earth-063016-015605
Publisher site
See Article on Publisher Site

Abstract

Geysers episodically erupt liquid and vapor. Despite two centuries of scientific study, basic questions persistwhy do geysers exist? What determines eruption intervals, durations, and heights? What initiates eruptions? Through monitoring eruption intervals, analyzing geophysical data, taking measurements within geyser conduits, performing numerical simulations, and constructing laboratory models, some of these questions have been addressed. Geysers are uncommon because they require a combination of abundant water recharge, magmatism, and rhyolite flows to supply heat and silica, and large fractures and cavities overlain by low-permeability materials to trap rising multiphase and multicomponent fluids. Eruptions are driven by the conversion of thermal to kinetic energy during decompression. Larger and deeper cavities permit larger eruptions and promote regularity by isolating water from weather variations. The ejection velocity may be limited by the speed of sound of the liquid vapor mixture.

Journal

Annual Review of Earth and Planetary SciencesAnnual Reviews

Published: Aug 30, 2017

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