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American Mineralogist

Journal of Earth and Planetary Materials

Ed. by Putirka, Keith / Swainson, Ian

12 Issues per year


IMPACT FACTOR 2016: 2.021

CiteScore 2016: 1.88

SCImago Journal Rank (SJR) 2016: 0.952
Source Normalized Impact per Paper (SNIP) 2016: 0.955

Online
ISSN
1945-3027
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Volume 100, Issue 11-12 (Nov 2015)

Issues

Experimental constraints on bubble formation and growth during magma ascent: A review

Adrian Fiege
  • Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, Michigan 48109-1005, U.S.A.
  • Other articles by this author:
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/ Sarah B. Cichy
  • Corresponding author
  • School of Earth and Space Exploration, Arizona State University, 781 E. Terrace Mall, Tempe, Arizona 85287-6004, U.S.A.
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Published Online: 2015-11-24 | DOI: https://doi.org/10.2138/am-2015-5296

Abstract

The number of studies investigating the vesiculation of natural samples and their implications to volcanic degassing and eruption mechanisms has been growing rapidly within the last decades. To interpret the natural rock textures, the geoscience community has produced a range of experimental and theoretical data sets on bubble nucleation, growth, and coalescence in magmatic systems. A robust experimental database is required to calibrate (theoretical and empirical) modeling approaches, which allow the calculation of magma ascent rates from volcanic ejecta mainly by the determination of the bubble number density (BND). Although, the available data set is still limited, it already shows that variations in melt (and volatile/fluid) composition can have a significant effect. In this manuscript we (re-)evaluate the existing experimental data set, while focusing mainly on the review and discussion of continuous decompression experiments.

One aim of this review article is to encourage scientists to fill the gaps in the existing experimental data sets and help to acknowledge, use, and further develop the most promising experimental techniques. Therefore, we highlight different methods and discuss their advantages and possible limitations. We also discuss possible ways of how to better account for the influence of melt composition in models, which link BND to decompression rate.

Keywords: Bubble nucleation and growth; decompression experiment; magma ascent rates; Review article

About the article

Received: 2015-01-04

Accepted: 2015-05-27

Published Online: 2015-11-24

Published in Print: 2015-11-01


Citation Information: American Mineralogist, ISSN (Online) 1945-3027, ISSN (Print) 0003-004X, DOI: https://doi.org/10.2138/am-2015-5296.

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© 2015 by Walter de Gruyter Berlin/Boston.

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