Particle-size distributions of Eocene-Oligocene sediment from ODP Site 742, Prydz Bay

• Main Authors: Passchier, Sandra, Ciarletta, Daniel
• Format: Dataset
• Language: English
• Published: U.S. Antarctic Program (USAP) Data Center 2021
• Subjects: ODP742; Sediment Core Data; Eocene; Oligocene; Particle Size; Cryosphere; Marine Geoscience; Antarctica; Prydz Bay; Antarc*
• Online Access: https://dx.doi.org/10.15784/601454; https://www.usap-dc.org/view/dataset/601454

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.