Appendix A: Sample metadata with locations and descriptions of pyroclastic samples Appendix B: Sample metadata with locations, descriptions, and thicknesses of pyroclastic samples Appendix C: Locations, descriptions, and whole-rock geochemistry values from rock samples Appendix D: Locations, descriptions, and electron microprobe analyses of plagioclase from rock samples Appendix E: Locations, descriptions, and electron microprobe analyses of pyroxene from rock samples Appendix F: Locations, descriptions, and electron microprobe analyses of magnetite and ilmenite from rock samples Appendix G: Locations, descriptions, and electron microprobe analyses of matrix glass from pyroclastic samples
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The region we investigated for this study is the original homeland of the Alutiiq/Sugpiaq people who have inhabited the coastal environments of southcentral Alaska for over 7,000 years (Ringsmuth, 2007). We acknowledge the complex history and rich culture of the Alutiiq/Sugpiaq people and honor the families and tribal members still connected to this land. In particular, we are grateful to the people of Port Heiden for their generosity in sharing their insights and memories of Aniakchak volcano and for allowing us to base our field campaigns in their community. Fieldwork was supported by the Alaska Volcano Observatory, the U.S. Geological Survey, and the University of Alaska Fairbanks Department of Geosciences and Geophysical Institute. This work was also partially supported by the U.S. Geological Survey under Cooperative Agreement No. G19AC00171. We especially thank Game McGimsey and Tom Miller for sharing their knowledge of Aniakchak volcano's geology, and pilots Howard Reed (Maritime Helicopters, Homer, Alaska) and Sam Egli (Egli Air Haul, King Salmon, Alaska) for safe transport during fieldwork. We also appreciate assistance from Game McGimsey, Rob Nicholson, James Gardner, and Tom Miller during field campaigns. We thank several colleagues for their scientific discussions, analytical assistance, and assistance with sample preparation, including Pavel Izbekov, Ken Severin, Frank Kyte, Kristi Wallace, Fiona Eberhardt, Manny Nathenson, Jessica Larsen, Chris Nye, Cheryl Cameron, Kate Bull, and Matthew Loewen. Brandon Browne also thanks Patricia Ekberg, John Perreault, Kristen Janssen, Simone Montayne, and Dennis Hojna. Thoughtful and constructive reviews by Tim Orr (USGS/Alaska Volcano Observatory), Nathan Andersen (USGS/Cascades Volcano Observatory), Ellen Daley, and Janet Schaefer (DGGS/Alaska Volcano Observatory) improved the report. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the State of Alaska or the U.S. Government.
Aniakchak volcano continues to show episodic signs of unrest, suggesting that eruptions will occur in the future. This research describes the nature and character of a significant past eruption to aid in the discussion of spatial and temporal patterns of Alaska volcanism. In addition, the work supports improvements to eruption scenario forecasts and hazard response.
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The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
| Data format: | tabular data in format table |
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https://doi.org/10.14509/30839 |