Dataset Information
Particle-size distributions of Eocene-Oligocene sediment from ODP Site 696, South Orkney Microcontinent
Data DOI:
Cite as
Passchier, S., Horowitz Castaldo, J., Lepp, A., & Light, J. (2022) "Particle-size distributions of Eocene-Oligocene sediment from ODP Site 696, South Orkney Microcontinent" U.S. Antarctic Program (USAP) Data Center. doi:
This dataset contains measurements of terrigenous particle-size distributions on Eocene-Oligocene sediment from Ocean Drilling Program Site 696 drilled in 650 m water depth on the South Orkney Microcontinent. 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. Diatoms were generally either absent or present in trace amounts in the Eocene-Oligocene interval and were not removed. 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 1.6 (Illite) 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.
Passchier, Sandra; Lepp, Allison; Horowitz Castaldo, Josie; Light, Jennifer
Date Created:
USAP-DC (current)
Spatial Extent(s)
West: -42.933, East: -42.933, South: -61.849, North: -61.849
  1. Hojnacki, V., Lepp, A., Horowitz Castaldo, J., States, A., Li, X. and Passchier, S. 2022 submitted. Impact of Eocene-Oligocene Antarctic glaciation on the paleoceanography of the Weddell Sea
  2. Horowitz, Josie, "Identification of Ice-rafted Debris in the Weddell Sea to Characterize Glaciation at the Eocene-Oligocene Transition" (2021). Theses, Dissertations and Culminating Projects. 675.
  3. Lepp, Allison Paige, "Geochemical and Sedimentological Analysis of Marine Sediments from ODP Site 696 and Implications for the Onset of Antarctic Glaciation" (2018). Theses, Dissertations and Culminating Projects. 140.
  4. Light, Jennifer Joanne, "Geochemical and Particle Size Analysis of East Antarctic Shelf Sediments Through the Eocene Oligocene Transition" (2017). Theses, Dissertations and Culminating Projects. 15.
Supplemental Docs
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MD5 Checksum: fbe7ae2e835e6d30a7a828da00f4cc47 File Type: Comma-Separated Values (CSV)

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