Decompression Experiments on Rhyolitic Melt Embayments

Hosseini, Behnaz; ORCID: 0000-0003-1035-4323
Myers, Madison L; ORCID: 0000-0003-2271-4445
Watkins, James M; ORCID: 0000-0003-4860-5909
Harris, Megan A; ORCID: 0000-0002-9644-6896
This dataset presents volatile element (H2O + CO2) gradient analyses in experimentally decompressed rhyolitic melt (glass) embayments. In these experiments, natural quartz-hosted embayment glasses were re-equilibrated at high pressure (150 MPa) and temperature (780 °C) prior to controlled decompression to 10-30 MPa at various rates (0.005-0.05 MPa/s). The experiments were conducted using the cold-seal pressure vessels at the University of Oregon's Experimental Petrology and Geochemistry Laboratory, and diffusion-limited volatile gradients in glasses were analyzed by FTIR spectroscopy (Nicolet iN10 MX) at Montana State University. The purpose of this dataset is to address the longstanding need for validation of the embayment speedometer, a petrological tool that is increasingly being used to estimate magma decompression rates for explosive eruptions.
How to cite this dataset:
Hosseini, B., Myers, M. L., Watkins, J. M., Harris, M. A., 2023. Decompression Experiments on Rhyolitic Melt Embayments, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA). Accessed 2024-05-21.
DOI Creation Date:
Not applicable to this dataset.
Publication DOI:
Creative Commons Attribution-ShareAlike 4.0 International [CC-BY-SA-4.0]
Funding source(s):
National Science Foundation: 1922513
Coverage Scope: Other
Geographic Location: Not applicable to this dataset.
User Contributed Keyword(s):
Decompression experiments, magma decompression rates, volatiles, diffusion, melt embayments
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