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Combining CSD and isotopic microanalysis: Magma supply and mixing processes at Stromboli Volcano, Aeolian Islands, Italy

Morgan, D.J.; Jerram, D.A.; Chertkoff, D.G.; Davidson, J.P.; Pearson, D.G.; Kronz, A.; Nowell, G.M.

Authors

D.J. Morgan

D.A. Jerram

D.G. Chertkoff

J.P. Davidson

D.G. Pearson

A. Kronz



Abstract

Integrating isotopic microanalysis with other analytical techniques creates powerful new methodologies for understanding the evolution of rock samples at the sub-grain scale. Here we present Crystal Size Distribution (CSD) data for a 26,000 year old sample from Stromboli Volcano and accompanying isotopic microanalysis of the phenocrysts. A technique, called the ICSD plot, is introduced which given stated assumptions allows the integration of both sets of data to generate timelines of isotopic evolution through the volcanic system. The combined approach is powerful, allowing investigation of the magma supply, mixing, crystallisation and contamination processes prior to eruption of a volcanic sample. For Stromboli Volcano, the combined analysis suggests that the change in magma type following a cone collapse took roughly five years to complete, similar to the timescale of changes seen in recent decades.

Citation

Morgan, D., Jerram, D., Chertkoff, D., Davidson, J., Pearson, D., Kronz, A., & Nowell, G. (2007). Combining CSD and isotopic microanalysis: Magma supply and mixing processes at Stromboli Volcano, Aeolian Islands, Italy. Earth and Planetary Science Letters, 260(3-4), 419-431. https://doi.org/10.1016/j.epsl.2007.05.037

Journal Article Type Article
Publication Date Aug 30, 2007
Deposit Date Feb 23, 2009
Journal Earth and Planetary Science Letters
Print ISSN 0012-821X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 260
Issue 3-4
Pages 419-431
DOI https://doi.org/10.1016/j.epsl.2007.05.037
Keywords CSD, Isotopic microanalysis, Micromill, Microdrill, Stromboli, ICSD.
Public URL https://durham-repository.worktribe.com/output/1561040