{
    "tag": 14500,
    "title": "Sediment and Radiochemical Characteristics from Shore-Perpendicular Estuarine and Marsh Transects in the Grand Bay National Estuarine Research Reserve, Mississippi",
    "pubdate": "20220418",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/17CCT02_Transect_Metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "To examine sediment transport and provenance between a marsh and estuary, surface sediments were collected along two transects in the Grand Bay National Estuarine Research Reserve, Mississippi (GNDNERR). Each shore-perpendicular transect consisted of fifteen surface samples, collected every 2.5 meters (m) from 10-m out into the estuary to 25-m into the marsh from the shoreline. Sediment samples were analyzed for their physical and radiochemical properties or signatures. Sediment samples were collected during U.S. Geological Survey (USGS) field activity number (FAN) 2017-315-FA (alternate FAN, [altFAN] 17CCT02) in April 2017. Marsh and estuarine surface samples were collected as part of the St. Petersburg Coastal and Marine Science Center (SPCMSC) Estuarine-MaRsh Geology (EMRG) research project.  Please read the full metadata for details on data collection, dataset variables, and data quality.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Ellis, Alisha M.",
            "role": "Author"
        },
        {
            "name": "Smith, Christopher G.",
            "role": "Author"
        },
        {
            "name": "Vargas, Joseph M.",
            "role": "Author"
        },
        {
            "name": "Everhart, Cheyenne S.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "1424",
            "name": "cesium",
            "scope": "Alkali metal element with symbol Cs and atomic number 55 <http:\/\/periodic.lanl.gov\/55.shtml>"
        },
        {
            "thcode": 2,
            "code": "153",
            "name": "chemical analysis",
            "scope": "Chemical techniques used to identify the composition of substances."
        },
        {
            "thcode": 2,
            "code": "1799",
            "name": "coastal processes",
            "scope": "Processes unique to coastal areas including longshore transport, beach erosion, storm surge, shoreline change, delta formation, barrier island migration, beach stabilization by vegetation"
        },
        {
            "thcode": 2,
            "code": "291",
            "name": "earth sciences",
            "scope": "Broad term for all science related to the study of the earth."
        },
        {
            "thcode": 2,
            "code": "1800",
            "name": "estuarine processes",
            "scope": "Processes affecting estuaries including tides, waves, mixing of fluvial and marine waters"
        },
        {
            "thcode": 2,
            "code": "379",
            "name": "field sampling",
            "scope": "Collecting pieces or specimens or making measurements or observations at determined intervals or areas.  Results may be used as representative of the whole research area or population."
        },
        {
            "thcode": 2,
            "code": "464",
            "name": "geology",
            "scope": "Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin."
        },
        {
            "thcode": 2,
            "code": "464",
            "name": "geology",
            "scope": "Study of the planet earth, its composition, structure, physical and chemical processes, and history since its origin."
        },
        {
            "thcode": 2,
            "code": "492",
            "name": "GPS measurement",
            "scope": "Determination of distance and location using instruments receiving signals from the Global Positioning System, a system of satellites for identifying earth locations."
        },
        {
            "thcode": 2,
            "code": "493",
            "name": "grain-size analysis",
            "scope": "Method of studying soils, sediments, sands, or rock by determining the size, distribution, and proportion of selected particles."
        },
        {
            "thcode": 2,
            "code": "1492",
            "name": "lead",
            "scope": "Metalloid element with symbol Pb and atomic number 82 <http:\/\/periodic.lanl.gov\/82.shtml>"
        },
        {
            "thcode": 2,
            "code": "1543",
            "name": "potassium",
            "scope": "Alkali metal element with symbol K and atomic number 19 <http:\/\/periodic.lanl.gov\/19.shtml>"
        },
        {
            "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": "1593",
            "name": "thorium",
            "scope": "Rare earth (actinide series) element with symbol Th and atomic number 90 <http:\/\/periodic.lanl.gov\/90.shtml>"
        },
        {
            "thcode": 2,
            "code": "1186",
            "name": "transect sampling",
            "scope": "Systematic method of collecting field data by recording observations or collecting specimens along a vector or measured course across the environment."
        },
        {
            "thcode": 2,
            "code": "1199",
            "name": "unconsolidated deposits",
            "scope": "Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys."
        },
        {
            "thcode": 2,
            "code": "1202",
            "name": "uranium-lead analysis",
            "scope": "Radiometric dating technique to determine the age of earth materials from the ratio of the radioactive isotopes of uranium-235 or uranium-238 to the lead isotope decay products in the sample. The ratio is compared to the known half-life of the uranium isotopes."
        },
        {
            "thcode": 15,
            "code": "006",
            "name": "elevation",
            "scope": "Height above or below sea level, for example altitude, bathymetry, digital elevation models, slope, derived products, DEMs, TINs"
        },
        {
            "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": "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": [
        "2017-315-FA"
    ]
}