{
    "tag": 14971,
    "title": "Radium and Radon Radioisotope Activity Data from Samples Collected Between May 2019 and September 2020 Along the West Florida Shelf (Amberjack and Green Banana Blue Holes)",
    "pubdate": "20221229",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/WFS_Radioisotope_Study.faq.html",
    "format": null,
    "email": null,
    "descript": "Relict karstic features or sinkholes, often referred to as blue holes, are common features along continental shelves that are underlain by carbonate rich sediments and\/or rocks. Several of these features occur along the west-Florida shelf within the Gulf of Mexico, including the two mentioned in Vargas and others (2022): Amberjack Hole and Green Banana Sink (hereafter referred to as Green Banana). Scientists from the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center (USGS-SPCMSC) participated in sampling efforts lead by the National Oceanic and Atmospheric Administration (NOAA)-funded collaborative team from Mote Marine Laboratory, University of Georgia, and Florida Atlantic University. Amberjack Hole is located approximately 50 kilometers (km) west of Sarasota, Florida; it is a dome-shaped feature that extends 40 m below the seafloor (approximately 70 m total water depth). Green Banana is located approximately 80 km west of Sarasota; it is a U-shaped feature that extends 80 m or more below the seafloor (approximately 125 m total water depth). Naturally occurring radioisotopes of Radon and Radium were analyzed by utilizing samples collected from Amberjack Hole during cruises in May and September 2019, and Green Banana in September 2020. Total Radon-222 was measured using bulk water samples, while Radium-223, Radium-224, and supported Radon-222 (Radium-226) were measured from residue retained on manganese (di)oxide impregnated fibers (referred to as Mn-fibers from hereon) following exposure to seawater. Radium-223 and Radium-224 activity determined from the Mn-fibers were measured on a set of Radium Delayed Coincidence Counters (RaDeCC) as outlined in Moore and Arnold (1996). Total Radon-222 in water and supported Radon-222 (Radium-226 on Mn-fibers) were measured on radon-in-air detectors (RAD7, Durridge, Inc). Data included in Vargas and others (2022) correspond to USGS Field Activity Numbers (FAN) 2019-328-FA (19WFS01), 2019-357-FA (19WFS03), and 2020-317-FA (20WFS01); samples were acquired in May 2019, September 2019, and September 2020 respectively. Please read the full metadata record for details on data collection, dataset variables, and data quality.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Vargas, Joseph M.",
            "role": "Author"
        },
        {
            "name": "Smith, Christopher G.",
            "role": "Author"
        },
        {
            "name": "Everhart, Cheyenne S.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "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": "560",
            "name": "hydrology",
            "scope": "Branch of earth science that deals with water as it occurs in the atmosphere, on the surface of the ground, and underground."
        },
        {
            "thcode": 2,
            "code": "810",
            "name": "ocean characteristics",
            "scope": "The attributes and process of seas and oceans."
        },
        {
            "thcode": 2,
            "code": "816",
            "name": "ocean processes",
            "scope": "Recurrent natural changes that are physical, biological, or chemical, actively affecting the seas and oceans."
        },
        {
            "thcode": 2,
            "code": "1551",
            "name": "radium",
            "scope": "Alkaline earth element with symbol Ra and atomic number 88 <http:\/\/periodic.lanl.gov\/88.shtml>"
        },
        {
            "thcode": 2,
            "code": "1552",
            "name": "radon",
            "scope": "Noble gas element with symbol Rn and atomic number 86 <http:\/\/periodic.lanl.gov\/86.shtml>"
        },
        {
            "thcode": 2,
            "code": "1010",
            "name": "salinity",
            "scope": "Measure of the concentration of salts dissolved in a solution."
        },
        {
            "thcode": 2,
            "code": "1376",
            "name": "tracer study",
            "scope": "Experiments in which stable, easily detected substances or radioisotopes are added to a material to follow the movement of the substance in the environment or to detect any physical or chemical changes with time."
        },
        {
            "thcode": 2,
            "code": "1309",
            "name": "water sampling",
            "scope": "Methods of collecting a representative part of a body of water for testing in controlled conditions."
        },
        {
            "thcode": 2,
            "code": "1312",
            "name": "water temperature",
            "scope": "The degrees of heat of water from a given source at a specific time."
        },
        {
            "thcode": 15,
            "code": "007",
            "name": "environment",
            "scope": "Environmental resources, protection and conservation, for example environmental pollution, waste storage and treatment, environmental impact assessment, monitoring environmental risk, nature reserves, landscape, water quality, air quality, environmental modeling"
        },
        {
            "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": "013",
            "name": "location",
            "scope": "Positional information and services, for example addresses, geodetic networks, geodetic control points, postal zones and services, place names, geographic names"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2019-328-FA",
        "2019-357-FA",
        "2020-317-FA"
    ]
}