{
    "tag": 7902,
    "title": "Local radiocarbon reservoir age (Delta-R) variability from the nearshore and open-ocean environments of the Florida Keys reef tract during the Holocene and associated U-series and radiocarbon data (Marine13 Radiocarbon Calibration Curve)",
    "pubdate": "20170907",
    "sername": null,
    "series_name": null,
    "issue": "doi:10.5066\/F7P8492Q",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/FL_keys_radiocarbon_reservoir_age_variability_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "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. For further information regarding data collection and analysis methods refer to Toth and others (2016, 2017). This research is a part of the USGS Coral Reef Ecosystem Studies Project (http:\/\/coastal.er.usgs.gov\/crest\/).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Toth, Lauren T.",
            "role": "Author"
        },
        {
            "name": "Cheng, Hai",
            "role": "Author"
        },
        {
            "name": "Edwards, R. Lawrence",
            "role": "Author"
        },
        {
            "name": "Ashe, Erica",
            "role": "Author"
        },
        {
            "name": "Richey, Julie N.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "177",
            "name": "coelenterates",
            "scope": "Freshwater and marine invertebrates, such as corals, jellyfish, and sea anemones, belonging to the phylum Coelenterata and living as sedentary polyps or free swimming medusae."
        },
        {
            "thcode": 2,
            "code": "437",
            "name": "geochemistry",
            "scope": "Study of the distribution of chemical elements and natural compounds on the earth and in the atmosphere and the chemical processes that affect the earth."
        },
        {
            "thcode": 2,
            "code": "706",
            "name": "marine geology",
            "scope": "Branch of geology concerned with the composition, geologic history, and earth processes of the ocean floor and the continental margin."
        },
        {
            "thcode": 2,
            "code": "812",
            "name": "ocean circulation",
            "scope": "Movement of large masses of water within an ocean."
        },
        {
            "thcode": 2,
            "code": "859",
            "name": "paleoceanography",
            "scope": "Study of the oceans in the geologic past, including their physical, chemical, biologic, and geologic history."
        },
        {
            "thcode": 2,
            "code": "954",
            "name": "radiometric dating",
            "scope": "Methods for age determination of rocks and fossils by measuring the proportions of naturally occurring radioactive isotopes to their decay products."
        },
        {
            "thcode": 2,
            "code": "971",
            "name": "reef ecosystems",
            "scope": "Biological communities formed by the skeletons of calcareous seawater organisms, usually corals."
        },
        {
            "thcode": 2,
            "code": "1101",
            "name": "statistical analysis",
            "scope": "Branch of mathematics concerned with techniques to collect and interpret data."
        },
        {
            "thcode": 15,
            "code": "008",
            "name": "geoscientificInformation",
            "scope": "Information pertaining to earth sciences, for example geophysical features and processes, geology, minerals, sciences dealing with the composition, structure and origin of the earth's rocks, risks of earthquakes, volcanic activity, landslides, gravity information, soils, permafrost, hydrogeology, groundwater, erosion"
        },
        {
            "thcode": 15,
            "code": "014",
            "name": "oceans",
            "scope": "Features and characteristics of salt water bodies (excluding inland waters), for example tides, tidal waves, coastal information, reefs, maritime, outer continental shelf submerged lands, shoreline"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": {
        "0": "2014-321-FA",
        "1": "2015-314-FA",
        "2": "2015-325-FA",
        "3": "08CGS01",
        "4": "1976-300-FA",
        "5": "1978-300-FA",
        "6": "1981-301-FA",
        "7": "1981-302-FA",
        "8": "1983-300-FA",
        "9": "1989-300-FA",
        "10": "1990-302-FA",
        "11": "1990-303-FA",
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}