Whole rock and mineral data for Holocene Rhyolites at the Three Sisters volcanic cluster, Oregon Cascade Range, USA
Creator(s):
Andersen, Nathan L; ORCID:
0000-0002-4152-4914 Dechert, Annika
Ruth, Dawn C S
Sas, May
Chouinard, Julie
Dufek, Josef
Abstract:
This dataset comprises whole rock and mineral compositions for the Holocene Rock Mesa (2.2 ka) and Devil’s Chain (2.0 ka) rhyolites erupted from the flanks of South Sister volcano, central Oregon Cascade Range, USA. The mineral data set includes orthopyroxene, plagioclase, amphibole, and Fe-Ti oxides. These compositions are employed in thermometry, barometry, and hygrometry calculations and in models of Fe-Mg diffusion on orthopyroxene crystals.
How to cite this dataset:
Andersen, N. L., Dechert, A., Ruth, D. C. S., Sas, M., Chouinard, J., Dufek, J., 2025. Whole rock and mineral data for Holocene Rhyolites at the Three Sisters volcanic cluster, Oregon Cascade Range, USA, Version 1.0. Interdisciplinary Earth Data Alliance (IEDA).
https://doi.org/10.60520/IEDA/113833. Accessed 2025-06-03.
DOI Creation Date:
2025-05-29
Related
Publication(s):
Andersen, N. L., Dechert, A. E., Ruth, D. C. S., Sas, M., Chouinard, J., and Dufek, J. (in review). The transition from melt accumulation to eruption triggering recorded by orthopyroxene Fe-Mg diffusion timescales in late Holocene rhyolites, South Sister volcano, Oregon Cascade Range. Geochemistry Geophysics Geosystems.
License:
Creative Commons Attribution 4.0 International [CC-BY-4.0]
Funding source(s):
U.S. Geological Survey Volcano Science Center
National Science Foundation:
1940994 National Science Foundation EAR-PF1855223
Keyword(s):
Coverage Scope: Other
Geographic Location: Cascade Range, Three Sisters, South Sister
User Contributed Keyword(s):
Eruption initiation, thermobarometry, diffusion timescales
Data Available On:
2025-10-01