August (Gus) Steigmeyer
Degrees Held:
M.S.: Natural Resources and Environment (University of Michigan)
B.A. Dual Degree: Biology and English (Kenyon College)
Degree Sought:
PhD: Earth Science
Advisor:
Dr. Mark Skidmore
Email:
Title of Research Project:
Chemoautotrophy in Subglacial Lake Mercer, Antarctica
Project Summary:
Identifying modes of microbial primary production in the sediments of Lake Mercer, a deep subglacial Antarctic lake, using a series of geochemical analyses and incubation experiments.
Trainings/Affiliations/Certifications/Awards:
NASA Earth & Space Science Fellowship (2018)
Publications:
Hawkings, J.R., Skidmore, M.L.,Wadham, J.L., Priscu, J.C., Morton, P.L., Hatton, J.E., Gardner, C.B., Kohler, T.J., Stibal., M., Bagshaw, E.A., Steigmeyer, A., Barker, J., Dore, J.E., Lyons, W.B., Tranter, M., Spencer, R.G.M. and the SALSA Science Team. 2020. ‘Enhanced trace element mobilization by Earth’s ice sheets,’ Proceedings of the National Academy of Sciences, 117(50),31648-31659.
Li W., Dore J.E., Steigmeyer, A.J., Cho, Y-J., Kim, O-S., Liu, Y., Morgan-Kiss, R.M., Skidmore, M.L., Priscu, J.C. 2020. Methane production in the oxygenated water column of a perennially ice-covered Antarctic lake. Limnology and Oceanography, 65:143-156.
Steigmeyer A., Li W., Dore J.E., Skidmore M.L., Sowers, T. Priscu J.C. .2019. ‘Methane Production from Organic-Mineral Reactions under Cold, Hypersaline Conditions in a Perennially Ice-Covered Antarctic Lake’, AGU Fall Meeting, San Francisco, CA, 9-13 December 2019 – C51D-1327
Steigmeyer A., Li W., Dore J.E., Skidmore M., Sowers, T. Priscu J. .2019. ‘Exploring potential geochemical sources for the supersaturated methane pool in Lake Bonney, Antarctica’, Astrobiology Science Conference, Seattle, WA, June 24-28, 2019
Aarons, Sarah M., S. M. Aciego, C. A. Arendt, M. A. Blakowski, A.J. Steigmeyer, P. Gabrielli, M.R. Sierra-Hernández, E. Beaudon, B. Delmonte, G. Baccolo, N. W. May, and K. A. Pratt. 2017. 'Dust composition changes from Taylor Glacier (East Antarctica) during the last glacial-interglacial transition: A multi-proxy approach', Quaternary Science Reviews, 162: 60-71.
Steigmeyer, A. J., J. Zhang, J. M. Daley, X. Zhang, and G. A. Burton, Jr. 2017. 'An in situ toxicity identification and evaluation water analysis system: Laboratory validation,' Environmental Toxicology and Chemistry, 36: 1636-43.