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Elemental and isotopic composition of nitrogen, oxygen, and argon in Allan Hills ice cores Data DOI: https://doi.org/10.15784/601483 Cite as Yan, Y., Bender, M., & Higgins, J. (2019) "Elemental and isotopic composition of nitrogen, oxygen, and argon in Allan Hills ice cores" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601483. AMD - DIF Record(s) USAP-1443306_1 Abstract This file includes the d15N, O2/N2 ratio, Ar/N2 ratio, and d18O of O2 (d18Oatm) in Allan Hills ice cores (ALHIC1502 and ALHIC1503). This dataset replaces an earlier version of the elemental and isotopic composition in Allan Hills ice cores (DOI: 10.15784/601204) by adding new data from 60 depths in ALHIC1502 core (26.26 m to 175.74 m). Creator(s): Yan, Yuzhen; Bender, Michael; Higgins, John Date Created: 2021-11-02 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: 159.35507, East: 159.35507, South: -76.73286, North: -76.73286 Award(s) NSF 1443263 Version: 2 Related Project(s) Collaborative Research: Window into the World with 40,000-year Glacial Cycles from Climate Records in Million Year-old Ice from the Allan Hills Blue Ice Area References Y. Yan, J. Ng, J. Higgins, A. Kurbatov, H. Clifford, N. Spaulding, J. Severinghaus, E. Brook, P. Mayewski, and M. Bender. 2.7-million-year-old ice from Allan Hills Blue Ice Areas, East Antarctica reveals climate snapshots since early Pleistocene. In Goldschmidt Abstracts, number 4359, 2017. Higgins, J.A., Kurbatov, A.V., Spaulding, N.E., Brook, E., Introne, D.S., Chimiak, L.M., Yan, Y., Mayewski, P.A. and Bender, M.L., 2015. Atmospheric composition 1 million years ago from blue ice in the Allan Hills, Antarctica. Proceedings of the National Academy of Sciences, 112(22), pp.6887-6891. (doi:10.1073/pnas.1420232112) Yan, Y., Bender, M.L., Brook, E.J., Clifford, H.M., Kemeny, P.C., Kurbatov, A.V., Mackay, S., Mayewski, P.A., Ng, J., Severinghaus, J.P. and Higgins, J.A., 2019. Two-million-year-old snapshots of atmospheric gases from Antarctic ice. Nature, 574(7780), pp.663-666. (doi:10.1038/s41586-019-1692-3) Yan, Y., Brook, E.J., Kurbatov, A.V., Severinghaus, J.P. and Higgins, J.A., 2021. Ice core evidence for atmospheric oxygen decline since the Mid-Pleistocene transition. Science Advances, 7(51), eabj9341. (doi:10.1126/sciadv.abj9341) Keywords AGDC-project Allan Hills Antarctica Argon Cryosphere Ice Ice Core Data Ice Core Gas Records Isotope Mass Spectrometry Nitrogen Oxygen