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Analyzing Nitrogen in Silicate Glasses by Secondary Ion Mass Spectrometry


Abstract Volcanic devolatilization is one of the major processes in the global nitrogen cycle. Past studies have often estimated the magnitude of this flux using volcanic emission measurements, which are limited to currently active systems and sensitive to atmospheric contamination. A different methodological approach requires appropriate analytical parameters for nitrogen analysis in silicate glasses by secondary ion mass spectrometry (SIMS), which have not yet been established. To this end, we analyze various ion implanted basaltic and rhyolitic glasses by SIMS. We demonstrate that water content significantly affects the ion yields of 14N+ and 14N16O−, as well as the background intensity of 14N+ and 12C+. Application of implant-derived calibration... (more)
Created Date 2016
Contributor Regier, Margo Regier (Author) / Hervig, Richard L (Advisor) / Roggensack, Kurt (Committee member) / Till, Christy B (Committee member) / Arizona State University (Publisher)
Subject Geology / Melt inclusion / Nitrogen / SIMS / Volatile cycling
Type Masters Thesis
Extent 49 pages
Language English
Copyright
Reuse Permissions All Rights Reserved
Note Masters Thesis Geological Sciences 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS


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Description Dissertation/Thesis