USAP-DC

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Particle-size measurements at 3-m intervals for AND-2A sediment core, McMurdo Sound Data DOI: https://doi.org/10.15784/601451 Cite as Passchier, S., & Candice, F. (2021) "Particle-size measurements at 3-m intervals for AND-2A sediment core, McMurdo Sound" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601451. AMD - DIF Record(s) USAP-0342484_1 Abstract This dataset contains measurements of particle-size distributions on sediment from ANDRILL Site AND-2A. Carbonate, and organic matter were removed through addition of 10mL aliquots of 30% H2O2 and 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; Candice, Falk Date Created: 2021-06-14 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: 167, East: 167, South: -78, North: -78 Award(s) NSF 0342484 Version: 1 Related Project(s) Collaborative Research: ANDRILL - - Investigating Antarcticas Role in Cenozoic Global Environmental Change References Passchier, S., Falk., C. and Florindo, F., 2013. Orbitally-paced shifts in the particle size of the Antarctic continental shelf in response to ice dynamics during the Miocene Climatic Optimum. Geosphere, v. 9, p. 54-62. (doi:10.1130/GES00840.1) Keywords Andrill Antarctica Continental Shelf Diamict Mcmurdo Sound Miocene Paleoclimate Particle Size