USAP-DC

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Physical and geochemical data from five sediment cores collected offshore Thwaites Glacier Data DOI: https://doi.org/10.15784/601514 Cite as Lepp, A. (2022) "Physical and geochemical data from five sediment cores collected offshore Thwaites Glacier" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601514. AMD - DIF Record(s) USAP-1738942_1 Abstract This dataset contains measurements from grain-size, x-ray fluorescence (XRF), and physical properties (including magnetic susceptibility, water content, and shear strength) analyses of five sediment cores collected offshore Thwaites Glacier during cruises NBP19-02 (cores KC04, KC08, and KC23) and NBP20-02 (cores KC33 and KC67). We estimate the cores, which are between 213.5 and 297.5 cm in length, reflect deposition during the last ~10 kyr, consistent with published constraints of deglaciation of this region. Data are organized in Microsoft Excel spreadsheets and core locations are provided in a PDF. Creator(s): Lepp, Allison Date Created: 2022-01-27 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -107.38, East: -104.23, South: -75.07, North: -74.64 Award(s) NSF 1738942 Version: 1 Related Project(s) NSF-NERC: THwaites Offshore Research (THOR) References Lepp, A. P., Simkins, L. M., Anderson, J. B., Clark, R. W., Wellner, J. S., Hillenbrand, C.-D., Smith, J. A., Lehrmann, A. A., Totten, R., Larter, R. D., Hogan, K. A., Nitsche, F. O., Graham, A. G. C., & Wacker, L. (2022). Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica. Frontiers in Earth Science, 10. https://doi.org/10.3389/feart.2022.863200 (doi:10.3389/feart.2022.863200) Keywords Antarctica Chemistry:sediment Glaciomarine Sediment Grain Size Magnetic Susceptibility Marine Geoscience Marine Sediments NBP1902 NBP2002 Physical Properties R/v Nathaniel B. Palmer Sediment Core Data Thwaites Glacier Trace Elements XRF