Alexander Bearden

Submitted & in Prep Manuscripts

Bearden et al. (In Prep) - Volatile systematics and magma storage depths at Mauna Loa: A melt inclusion perspective

Wieser, P, Shi, S, Rangel, B, DeVitre, C, Bearden, AT, Lynn, K, Gleeson, M, Trusdell, F, Camille-Caumon, M (submitted to JVGR). Fluid inclusion constraints on the geometry of the magmatic plumbing system beneath Mauna Loa: Part 1: Extrusive products.

Wieser, P., Gleeson, M, Rangel, B., DeVitre, C., Bearden, A.T., Lynn, K, Trusdell, F et al. (submitted to JVGR). Fluid inclusion constraints on the geometry of the magmatic plumbing system beneath Mauna Loa: Part 2: Xenoliths.

Peer-Reviewed Publications

DeVitre, C, L., Wieser, P.E, Bearden, A.T., Richie, A., Rangel, B., Gleeson, M.L.M., Grimsich, J., Lynn, K.J., Downs, D.T., Deligne, N.I., Mulliken, K.M. (2024). Depths in a day – A new era of rapid-response Raman-based barometry using fluid inclusions. Journal of Petrology, 65, 11, egae119, https://doi.org/10.1093/petrology/egae119.

Brueseke, M.E., Benowitz, J.A., Bearden, A.T., Mann, M.E., and Miggins, D.P. (2023). Subduction disruption, slab tears: ca. 1 Ma true collision of an ~30-km-thick oceanic plateau segment recorded by Yakutat slab nascent tear magmatism. Terra Nova, 35, 49-57, https://doi.org/10.1111/ter.12628.

Graettinger, A.H., and Bearden, A.T. (2021). Lateral migration of hazards during maar eruptions constrained from crater shapes. Journal of Applied Volcanology, 10, 3, 1-14, https://doi.org/10.1186/s13617-021-00103-w.

Thesis

Bearden, A.T. (2023). On the Maclaren River volcanic field: Petrogenesis of Pleistocene Yakutat slab tear volcanism in south-central Alaska, (USA). [M.S. Thesis]: Manhattan, Kansas State University, 129p.

Conference Presentations

Bearden, A.T., Wieser, PE., Rangel, B., DeVitre, C.L., Gleeson, M.L.M., Monteleone, B., Lynn, K.J., (2025), Volatile systematics and magma storage depths at Mauna Loa: a melt inclusion perspective. Chapman Conference on Caldera-Forming Eruptions at Basaltic Volcanoes: Insights and Puzzles from Kīlauea and Beyond. Hilo, Hawaii.

Bearden, A.T., Wieser, PE., Rangel, B., DeVitre, C.L., Monteleone, B., Lynn, K.J., (2024). Constraining volatile systematics and magma storage depths from mineral-hosted melt inclusions at Mauna Loa (HI). Geological Society of America Abstracts with Programs, 56, 5, doi:10.1130/abs/2024AM-403172.

Bearden, A.T. and Graettinger, A. (2024). Preparing for a Phreatomagmatic Eruption in the Cascades: A Morphologic Case Study of Cascadian Maars Using the Maar Volcano Location and Shape (MaarVLS) database. CASCADES24 Workshop, Oregon State University CASCADES Campus, Bend, OR. August 5-9th, 2024.

Lupini, I., Broley, K., Bearden, A.T., Van Wagenen, A., Kempton, P.D., Brueseke, M.E. (2023). Element partioning between altered basaltic glass and secondary phillipsite: preliminary results from site U1557, South Atlantic Transect, Expeditions 390/393. Geological Society of America Abstracts with Programs, Vol. 55, No. 6, doi:10.1130/abs/2023AM-394974.

Marshall, A., Thatcher, S., Baker, A., Bearden, A.T., Foley, K., Frizzell, K., Jackson, S. (2023). Disabled joy in the geosciences: celebrating the unique ways we engage with science in the field, lab and classroom. Geological Society of America Abstracts with Programs, Vol. 55, No. 6, doi:10.1130/abs/2023AM- 392102.

Bearden, A.T., Brueseke, M.E., Benowitz, J., Miggins, D.P., Mann, M.E. (2022). New Insights on the Yakutat slab tear, south-central Alaska (USA): Sr-Nd-Pb isotope constraints on the Pleistocene Maclaren River Volcanic Field. 2022 AGU Fall Meeting, Chicago, IL. https://ui.adsabs.harvard.edu/abs/2022AGUFM.T25E0180B/abstract (poster)

Bearden, A.T., Brueseke, M.E., Benowitz, J., Miggins, D.P., Mann, M.E. (2022). Evidence for a Post 1 Ma Yakutat Slab Tear: Geological, Geochronological, and Geochemical Constraints on the Maclaren River Volcanic Field, South-Central Alaska (USA). Geological Society of America Abstracts with Programs, Vol. 54, No. 5, doi:10.1130/abs/2022AM-377236.

Bearden, A.T., Graettinger, A. (2021). Constraining the Size and Shape of Terrestrial Maar Volcanoes Through the Expanded MaarVLS Database: Preparation for Remote Identification of Maars on Mars. Geological Society of America Abstracts with Programs, Vol. 53, No. 3, doi: 10.1130/abs/2021NC-362781.

Galletly, A., Graettinger, A., Bearden, A. (2021). Billowed Structures of Basaltic Intrusions: A Comparison of Big Bend National Park, Texas and 71 Gulch, Idaho. Geological Society of America Abstracts with Programs, Vol. 53, No. 3, doi: 10.1130/abs/2021NC-362762.

Bearden, A., Mendoza Ibarra, J., Rack, S., García Sánchez, L., Graettinger, A., Busby, C.J. (2020). Mapping and Petrographic Analysis in the Comondú Arc, Concepción Peninsula, Baja California Sur, Gulf of California (Mexico): Results from Baja Basins IRES. Geological Society of America Abstracts with Programs, Vol. 52, No. 6, doi: 10.1130/abs/2020AM-354896.

Rack, S., Mendoza Ibarra, S., Bearden, A., García Sánchez, L., Graettinger, A., Busby, C.J. (2020). Xenolith-Rich Dikes in the Comondú Arc, Bahía Concepción Peninsula, Baja California Sur, Gulf of California: Results from Baja Basins IRES. Geological Society of America Abstracts with Programs, Vol. 52, No. 6, doi:10.1130/abs/2020AM-35785.

Galletly, A., Graettinger, A., Bearden, A. (2020). Classification of Billowed Structures in Margins of Eocene Basaltic Intrusions Using Photogrammetric Analysis at Big Bend National Park, Texas, USA. Geological Society of America 2020 Connects Online; Poster Session; October 29th.

Graettinger A., Bearden, A. (2020). Migrating hazards from maars recorded in crater morphologies. Abstract volume of the 8th International Maar Conference - Petropavlosk-Kamchatsky: IVS FEB RAS, Abstract, pp. 11-12, ISBN 978-5-902424-31-4.

Graettinger, A., Bearden, A. (2019). Lateral migration of explosion locations in phreatomagmatic dominated volcanic constructs constrained from global shape analysis of maar craters. 2019 AGU Fall Meeting, San Francisco, CA, Abstract/Poster Session [V43G-0173].

Bearden, A., Graettinger, A., Nolan, J. (2019). An Investigation of 3D Maar Morphometry to Understand the Influence of Underlying Topography on Crater Shape. Geological Society of America Abstracts with Programs, Vol 51, No 5, doi: 10.1130/abs/2019AM-340611.

Nolan, J., Graettinger, A., Bearden, A. (2019). Quantifying Morphometry Through 3-D Models Produced by UAV Photogrammetry of Volcanic Craters and Collapse Features in Diamond Craters, Oregon, and Implications to Martian Crater Fields. Geological Society of America Annual Meeting, Phoenix, AZ – Presentation, doi: 10.1130/abs/2019AM-332779.

Published Datasets

Graettinger, A, Bearden, A., (2018). (Unreviewed), “Maar Volcano Location and Shape (MaarVLS) database v 2.0”, https://vhub.org/resources/4365.

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