USAP-DC

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{"@context": "https://schema.org/", "@type": "Dataset", "@id": "doi:10.15784/601900", "additionalType": ["geolink:Dataset", "vivo:Dataset"], "name": "Grain-size data for the Pliocene section at IODP Site U1533, Amundsen Sea", "description": "This dataset contains measurements of particle-size distributions on sediment from International Ocean Discovery Program Site U1533. 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 1.6 (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.", "citation": "Passchier, S., & Mino-Moreira, L. (2025) \"Grain-size data for the Pliocene section at IODP Site U1533, Amundsen Sea\" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601900.", "datePublished": "2025-12-31", "keywords": ["Amundsen Sea Sector", "Antarctica", "Cryosphere", "Glaciation", "Grain Size", "Pliocene", "Sediment Core Data", "Sedimentology"], "creator": [{"@type": "Person", "additionalType": "geolink:Person", "name": "Mino-Moreira, Lisbeth", "email": null, "affiliation": {"@type": "Organization", "name": null}}, {"@type": "Person", "additionalType": "geolink:Person", "name": "Passchier, Sandra", "email": "passchiers@montclair.edu", "affiliation": {"@type": "Organization", "name": null}}], "distribution": [{"@type": "DataDownload", "additionalType": "http://www.w3.org/ns/dcat#DataCatalog", "encodingFormat": "text/xml", "name": "ISO Metadata Document", "url": "https://www.usap-dc.org/metadata/isoxml/601900iso.xml", "contentUrl": "/dataset/filename"}, {"@type": "DataDownload", "@id": "http://dx.doi.org/10.15784/601900", "additionalType": "dcat:distribution", "url": "http://dx.doi.org/10.15784/601900", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}, {"@type": "DataDownload", "@id": "https://www.usap-dc.org/view/dataset/601900", "additionalType": "dcat:distribution", "url": "https://www.usap-dc.org/view/dataset/601900", "contentUrl": "/dataset/filename", "encodingFormat": "text/html"}], "identifier": {"@type": "PropertyValue", "propertyID": "https://registry.identifiers.org/registry/doi", "value": "doi:10.15784/601900", "url": "https://doi.org/10.15784/601900"}, "contributor": [{"@type": "Role", "roleName": "credit", "description": "funderName:NSF:GEO:OPP:Antarctic Earth Sciences awardNumber:2114839 awardTitle:West Antarctic Ice-sheet Change and Paleoceanography in the Amundsen Sea Across the Pliocene Climatic Optimum"}], "license": [{"@type": "CreativeWork", "URL": "https://creativecommons.org/licenses/by/4.0/", "name": "MD_Constraints", "description": "useLimitation: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_LegalConstraints", "description": "accessConstraints: license. otherConstraints: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0]."}, {"@type": "CreativeWork", "name": "MD_SecurityConstraints", "description": "classification: "}], "publisher": {"@type": "Organization", "name": "U.S. Antarctic Program (USAP) Data Center"}, "spatialCoverage": [{"@type": "Place", "geo": {"@type": "GeoShape", "box": "-68.735 -109.05 -68.735 -109.05"}}]}

Grain-size data for the Pliocene section at IODP Site U1533, Amundsen Sea Data DOI: https://doi.org/10.15784/601900 Cite as Passchier, S., & Mino-Moreira, L. (2025) "Grain-size data for the Pliocene section at IODP Site U1533, Amundsen Sea" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.15784/601900. Abstract This dataset contains measurements of particle-size distributions on sediment from International Ocean Discovery Program Site U1533. 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 1.6 (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. Creator(s): Passchier, Sandra; Mino-Moreira, Lisbeth Date Created: 2025-02-13 Repository: USAP-DC (current) License: Creative Commons Attribution Only v4.0 Generic [CC BY 4.0] Spatial Extent(s) West: -109.05, East: -109.05, South: -68.735, North: -68.735 Award(s) NSF 2114839 Version: 1 Related Project(s) West Antarctic Ice-sheet Change and Paleoceanography in the Amundsen Sea Across the Pliocene Climatic Optimum References Sandra Passchier, Claus-Dieter Hillenbrand, Sidney Hemming, Werner Ehrmann, Thomas Frederichs, Steve M. Bohaty, Ronald Leon, Olga Libman-Roshal, Lisbeth Mino-Moreira, Karsten Gohl, Julia Wellner. West Antarctic ice retreat and deepwater formation in the Amundsen Sea in the warm early Pliocene. Nature Communications. Keywords Amundsen Sea Sector Antarctica Cryosphere Glaciation Grain Size Pliocene Sediment Core Data Sedimentology