Thesis
Tracking volatile movement via fluid mobile trace elements and trace metals in amphibole and amphibole-hosted melt inclusions from the 2004-2008 Mount St. Helens eruption
Washington State University
Master of Science (MS), Washington State University
2012
Handle:
https://hdl.handle.net/2376/105930
Abstract
The purpose of this research was to further investigate whether Li and selected trace elements Sc, Co, Cu, Zn, Sr, Y, Zr, Mo, Ag, Sn, Sb, Ba, Ca, Sm, Eu, Gd, W, Pb and Bi, studied in-situ in amphibole were being dominated by exsolution or crystallization processes from the most recent eruption of Mount Saint Helens, 2004-2008. Our goals were to investigate the processes by which these metals couple with volatiles as the magma rises through the shallow conduit system, and identify how these metals correlate temporarily throughout the eruption. To achieve this, trace metal concentrations were correlated to crystallization temperatures. Correlations for elements Li, Cu, Mo, Ag, Sb, W, Pb and Bi show a wide range in concentration at a constant temperature. Correlations for remaining elements display two types of behavior, decreasing in concentration with respect to temperature. Temporal correlations for metals Mo, Ag, Sb, W, Pb and Bi show lots of variability in the beginning of the eruption and less towards the end. Sc, Co, Zn, Sr, Y, Zr, Sn, and REE exhibit constant variability throughout the eruption. We propose a model that outlines how correlations between these trace metals, Cl concentrations, and temperatures relate one another from the 2004-2008 Mount St. Helens eruption.
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Details
- Title
- Tracking volatile movement via fluid mobile trace elements and trace metals in amphibole and amphibole-hosted melt inclusions from the 2004-2008 Mount St. Helens eruption
- Creators
- Timothy Richard Hampel
- Contributors
- Michael C. Rowe (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Environment, School of the (CAHNRS)
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525374001842
- Language
- English
- Resource Type
- Thesis