USAP-DC

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Particle-size distributions of Eocene-Oligocene sediment from ODP Site 742, Prydz Bay Data DOI: https://doi.org/10.15784/601454 Cite as Passchier, S., & Ciarletta, D. (2021) "Particle-size distributions of Eocene-Oligocene sediment from ODP Site 742, Prydz Bay" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601454. AMD - DIF Record(s) USAP-1245283 Abstract This dataset contains measurements of terrigenous particle-size distributions on Eocene-Oligocene sediment from Ocean Drilling Program Site 742 in Prydz Bay. Carbonate and organic matter were removed through addition of 10mL aliquots of 30% H2O2, 2mL aliquots of 10% HCl to ~50-100mL suspension on a hot plate. Dispersion was through heating with sodium pyrophosphate. Samples were measured on a Malvern Mastersizer 2000 with a Hydro 2000MU (A) accessory, using a Refractive index of 1.544 (Quartz) and an absorption coefficient of 0.9. Results are in (vol. %) per size class, with diameter range equivalent to the diameter of spheres with the same volume as measured particles. Creator(s): Passchier, Sandra; Ciarletta, Daniel Date Created: 2021-06-21 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: 75.4045, East: 75.4045, South: -67.549667, North: -67.549667 Award(s) NSF 1245283 Version: 1 Related Project(s) The Stratigraphic Expression of the Onset of Glaciation in Eocene-Oligocene Successions on the Antarctic Continental Margin References Passchier, S., Ciarletta, D. J., Miriagos, T.E., Bijl, P.K., Bohaty, S.M., 2017. An Antarctic stratigraphic record of stepwise ice growth through the Eocene-Oligocene transition. GSA Bulletin 129 (3-4): 318–330. (doi:10.1130/B31482.1) Keywords Antarctica Eocene Marine Geoscience ODP742 Oligocene Particle Size Prydz Bay Sediment Core Data