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Christopher Halsted



Chris Halsted is a doctoral candidate in the Rubenstein School of Environment and Natural Resources, a graduate research fellow at the Gund Institute for Environment, and a member of the NSF/UVM Cosmogenic Community Facility. His graduate research focuses on ice sheet reconstructions and the refinement of cosmogenic exposure dating techniques, but he has a background in paleoclimatology and glacial geomorphology. In the Cosmogenic Community Facility, Chris assists Lee with day-to-day operations and helps visitors with their sample processing.

MS Thesis (Boston College, 2018)

Determining the timing and rate of southeastern Laurentide Ice Sheet thinning using 10Be dipsticks
download pdf of MS thesis proposal
download MS thesis defense slides (ppt) (pdf)

Undergraduate Degree

Bates College, B.S. Geology, 2014

Refereed Papers

Halsted, C. T, Bierman, P. R., Shakun, J. D., Davis, P. T., and Corbett, L. B., (2023) A critical re-analysis of constraints on the timing and rate of Laurentide Ice Sheet recession in the northeastern United States, Journal of Quaternary Science. 110.1002/jqs.3563

Drebber, J., Halsted, C., Corbett, L., Bierman, P., and Caffee, M. (in review, 6/2023) In-situ cosmogenic 10Be dating of Laurentide Ice Sheet retreat from central New England, USA, Geosciences 2023, 13(7), 213 doi.org/10.3390/geosciences13070213

Halsted,C., Bierman,P., Shakun, J., Davis, P. T., Corbett, L., Caffee, M., Hodgdon, T., and Licciardi, J. (2022) Rapid southeastern Laurentide Ice Sheet thinning during the last deglaciation revealed by elevation profiles of in-situ cosmogenic 10Be, GSA Bulletin. doi.org/10.1130/B36463.1

Halsted, C.T., Bierman, P. R., and Balco, G. (2021) Empirical evidence for latitude and altitude variation of the in situ cosmogenic 26Al/10Be production ratio. Geosciences. doi.org/10.3390/geosciences11100402

Bierman, P. R, Bender, A. M., Christ, A., Corbett, L., Halsted, C., Portenga, E., and Schmidt, A., (2020) Dating by Cosmogenic Nuclides, Encyclopedia of Geology, Second Edition, p. 101-115. doi.org/10.1016/B978-0-08-102908-4.00124-7

Corbett, L. B., Bierman, P. R., Wright,S., Shakun, J., Davis, P.T., Goehring, B., Halsted, C., Koester, A., Caffee, M., and Zimmerman, S. (2018) Analysis of multiple cosmogenic nuclides constrains Laurentide Ice Sheet history and process on Mt. Mansfield, Vermont’s highest peak, Quaternary Science Reviews. doi.org/10.1016/j.quascirev.2018.12.014

Abstracts

Bierman, P.R., Steig, E., Mastro, H., Hidy, A.J., Caffee, M.W., Corbett, L.B., and Halsted, C.T. 2023. Fossil vegetation and 26Al/10Be in basal till from GISP2 core further constrain existing interpretations of ice sheet history in central Greenland. American Geophysical Union Fall Meeting, San Francisco, CA. Abstract ID C11D-1068. agu.confex.com/agu/fm23/meetingapp.cgi/Paper/1371209

Davis, P.T., Halsted, C.T., Koester, A.J., Bierman, P.R., Corbett, L.B., Shakun, J.D., Goehring, B.M., and Caffee, M.W. 2022. Lack of MIS-3 ice in northern New England, USA, as constrained by multiple cosmogenic nuclides. Geological Society of American Annual Meeting, Denver, CO. Geological Society of America Abstracts with Programs 54(5): 378207. doi.org/10.1130/abs/2022AM-378207

Drebber, J.S., Halsted, C.T., Bierman, P.R., Corbett, L.B., Shakun, J.D., Davis, P.T., and Caffee, M.W. 2022. Exploring the timing of Laurentide Ice Sheet retreat and 10Be/14C mismatch in central New England. Geological Society of American Annual Meeting, Denver, CO. Geological Society of America Abstracts with Programs 54(5): 376711. doi.org/10.1130/abs/2022AM-376711

Drebber, J.S., Halsted, C.T., Bierman, P.R., Corbett, L.B., Shakun, J.D., Davis, P.T., and Caffee, M.W. 2022. Investigating 10Be/14C chronometer age divergence in Southern New England to assess the timing of Laurentide Ice Sheet deglaciation. Northeastern Geological Society of American Meeting, Lancaster, PA. Geological Society of America Abstracts with Programs 54(3). doi.org/10.1130/abs/2022NE-374675

Halsted, C., Bierman, P.R,. Codilean, A., and Caffee, M. W. 2022, Beyond erosion rates: sediment generation and transport dynamics revealed by in situ cosmogenic 26Al/10Be concentration ratios. Geological Society of America Abstracts with Programs 54(5):381491. doi.org/10.1130/abs/2022AM-381491

Halsted, C.T., Bierman, P.R., Corbett, L.B., Shakun, J.D., Davis, P.T., and Caffee, M.W. 2021. Inaccuracies in deglacial chronometers recording Laurentide Ice Sheet retreat in the northeastern United States: presence, magnitude, and controls. Geological Society of America National Meeting, Portland, OR. Geological Society of America Abstracts with Programs 53(6): 370802. doi.org/10.1130/abs/2021AM-370802

Halsted, C.T., Shakun, J.D., Corbett, L.B., Bierman, P.R., Davis, P.T., Goehring, B., Koester, A.J., and Caffee, M.W. 2021. Rapid Laurentide Ice Sheet mass loss (and associated sea level rise) during the Bølling/Allerød constrained by 10Be elevation transects in the northeastern United States. Paleo Constraints on Sea Level Rise virtual meeting. (download pdf)

Halsted, C.T., Shakun, J.D., Corbett, L.B., Bierman, P.R., Davis, P.T., Goehring, B.M., Koester, A.J., and Caffee, M.W. 2020. Improved reconstruction of the southeastern Laurentide Ice Sheet deglaciation: constraining ice thinning using in situ cosmogenic 10Be and 14C and critically evaluating different retreat rate chronometers. European Geosciences Union General Assembly Virtual Meeting. Geophysical Research Abstracts, EGU2020-11787. doi.org/10.5194/egusphere-egu2020-11787

Halsted, C. T., Shakun, J. D., Corbett, L. B., Bierman, P. R., Davis, P. T., Goehring, B. M., Koester, A. J., and Caffee, M. W. (2019) Reconstructing the deglacial thinning history of the southeastern Laurentide Ice Sheet using in-situ cosmogenic 10Be and 14C: a glacial dipstick approach. GSA Abstracts with Programs, Annual Meeting, Phoenix, AZ. v. 51(5), Abstract 121-3. doi:10.1130/abs/2019AM-339553

Halsted, C. T., Shakun, J. D., Corbett, L. B., Bierman, P. R., Davis, P. T., Koester, A. J., and Caffee, M. W. (2019) Determining the timing and rate of southeastern Laurentide ice sheet thinning using in-situ cosmogenic 10Be. GSA NE section meeting, Portland, ME. Abstract 13-4. doi:10.1130/abs/2019NE-327929

Shakun, J., Halsted, C., Koester, A. J., Corbett, L. B., Goehring, B. M., Zimmerman, S. R. H., and Caffee, M. (2018) Constraining the timing and rate of southeastern Laurentide Ice Sheet thinning during the last deglaciation with cosmogenic nuclide dipsticks. EOS, AGU Fall Meeting, Washington, D.C. Abstract PP13C-1335. (download pdf)

Halsted, C. T., Shakun, J. D., Corbett, L. B., Bierman, P. R., Davis, P. T., Caffee, M. W., and Koester, A. J. (2018) Determining the timing and rate of southeastern Laurentide Ice Sheet thinning using in-situ 10Be dipsticks. GSA Abstracts with Programs, Annual Meeting, Indianapolis, IN. v. 50(6), Abstract 92-6. doi:10.1130/abs/2018AM-324108

Corbett, L. B., Bierman, P. R., Wright, S. F., Shakun, J. D., Davis, P. T., Halsted, C. T., Goehring, B. M., Koester, A. J., Caffee, M. W., and Zimmerman, S. H. (2018) Multiple cosmogenic nuclides constrain Laurentide Ice Sheet history and process on Mt. Mansfield, Vermont's highest peak (invited presentation). GSA Abstracts with Programs, Annual Meeting, Indianapolis, IN. v. 50(6), Abstract 92-5. doi:10.1130/abs/2018AM-316174

Corbett, L. B., Bierman, P. R., Davis, P. T., Shakun, J. D., Koester, A. J. and Halsted, C. (2018) Constraining glacial history and process on Mount Mansfield, Vermont’s highest peak, with in situ cosmogenic 10Be. GSA Abstracts with Programs, NE section meeting, Burlington, VT. v. 50(2), Abstract 26-4. doi:10.1130/abs/2018NE-310323

Bierman, P. R., Corbett, L. B., Christ, A., and Halsted, C. (2018) You can learn and do cosmogenic 10Be and 26Al procesing at the University of Vermont's community sample processing facility. CANQUA-AMQUA meeting, Ottawa, Canada. p. 107. (download pdf)

Halsted, C. T., Shakun, J. D., Bierman, P. R., Davis, P. T., Corbett, L. B., Koester, A. J. and Caffee, M. W. (2018) Evidence for rapid Laurentide thinning in northern New England, USA, during the Bølling/Allerød warm period from 10Be exposure age dipsticks. CANQUA-AMQUA meeting. Ottawa, Canada.

Halsted, C., Shakun, J., Bierman, P. R., Davis, P.T., Corbett, L. B. and Caffee, M. (2018) Measuring 10Be ages from top to bottom in Franconia Notch, NH to constrain Laurentide Ice Sheet history. GSA Abstracts with Programs, NE section meeting, Burlington, VT. v. 50(2), Abstract 26-5. doi:10.1130/abs/2018NE-311291

Davis, P. T., Shakun, J. D., Bierman, P. R., Koester, A. J., Corbett, L. B. and Halsted, C. T. (2018) Boise Rock, not the glacial erratic that we thought, but rather part of the landslide history of Franconia Notch, New Hampshire. GSA Abstracts with Programs, NE section meeting, Burlington, VT. v. 50(2), Abstract 26-6. doi:10.1130/abs/2018NE-310785