USAP-DC

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Collaborative Research: Dating and Paleoenvironmental Studies on Ancient Ice in the Dry Valleys, Antarctica Description/Abstract This project studies ancient ice buried in the Dry Valleys of Antarctica. The ice, which may approach ten million years in age, will be dated using argon and uranium radioisotope techniques. High-risk work, if successful it will offer the first and perhaps only samples of the Earth's atmosphere from millions of years in the past. These samples could offer critically important tests of paleoclimate records and proxies, as well as a glimpse into the characteristics of a past world much like the predicted future, warmer Earth. The broader impacts are graduate student education, and potentially contributing to society's understanding of global climate change and sea level rise. Personnel Person Role Bender, Michael Investigator Yau, Audrey M. Co-Investigator Funding Antarctic Earth Sciences Award # 0636731 Antarctic Glaciology Award # 0636731 Antarctic Earth Sciences Award # 0636705 AMD - DIF Record(s) NSIDC-0597_1 BU-054-005 NSF-ANT06-36731_1 Data Management Plan None in the Database Product Level: Not provided Datasets Repository Title (link) Format(s) Status USAP-DC Measurements of Trapped Air from Mullins Valley, Dry Valleys, Antarctica None exist USAP-DC Dating and Paleoenvironmental Studies on Ancient Ice in the Dry Valleys, Antarctica None exist Publications Yau, A. M., Bender, M. L., Blunier, T., & Jouzel, J. (2016). Setting a chronology for the basal ice at Dye-3 and GRIP: Implications for the long-term stability of the Greenland Ice Sheet. Earth and Planetary Science Letters, 451, 1–9. (doi:10.1016/j.epsl.2016.06.053) Yau, A. M., Bender, M. L., Marchant, D. R., & Mackay, S. L. (2015). Geochemical analyses of air from an ancient debris-covered glacier, Antarctica. Quaternary Geochronology, 28, 29–39. (doi:10.1016/j.quageo.2015.03.008) Keywords Argon Isotopes Elemental Ratios Nitrogen Isotopes Oxygen Isotope Platforms and Instruments FIELD INVESTIGATION LABORATORY MASS SPECTROMETERS