{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Lauren T Toth", "hasEmail": "mailto:ltoth@usgs.gov"}, "description": "68 Holocene-aged corals from reef cores collected throughout the Florida Keys reef tract (FKRT) were dated using a combination of U-series and radiocarbon techniques to quantify the millennial-scale variability in the local radiocarbon reservoir age (\u0394R) of the shallow water environments of south Florida. \u0394R provides a measure of the deviation of local radiocarbon concentrations of marine environments from the global average and can be used as a tracer of oceanic circulation and local hydrology. U.S. Geological Survey (USGS) scientists combined coral-based estimates of \u0394R, using statistical modeling, to reconstruct millennial-scale variability in \u0394R at locations on the FKRT with (\u201cnearshore\u201d) and without (\u201copen ocean\u201d) terrestrial influence. USGS scientists also used the models to provide temporally-explicit estimates of \u0394R that can be used in radiocarbon calibrations of marine samples from the region. In Version 1.0 of the USGS data release (Toth and others, 2017) associated with this metadata record, derivedthe coral-based estimates of \u0394R were derived using data from the Marine13 radiocarbon calibration curve (Reimer and others, 2013). In version 2.0, the \u0394R estimates were instead derived using the Marine20 radiocarbon calibration curve (Heaton and others, 2020). For further information regarding data collection and analysis methods refer to Toth and others (2017).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7P8492Q", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.28e67e9e-cbdf-4e7d-b41d-949a247bfb6a.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_28e67e9e-cbdf-4e7d-b41d-949a247bfb6a", "keyword": ["USGS:28e67e9e-cbdf-4e7d-b41d-949a247bfb6a", "coelenterates", "environmental proxies", "geochemistry", "geoscientificInformation", "marine geology", "ocean circulation", "oceans", "paleoceanography", "radiometric dating", "reef ecosystems", "statistical analysis"], "modified": "2021-08-30T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-82.92, 24.45, -80.0967, 25.5906", "theme": ["geospatial"], "title": "Local radiocarbon reservoir age (\u0394R) variability from the nearshore and open-ocean environments of the Florida Keys reef tract during the Holocene and associated U-series and radiocarbon data (Marine20 Radiocarbon Calibration Curve)"}