{
    "tag": 14943,
    "title": "Location and radiochemical data from sediment cores collected on Deer Island, Mississippi",
    "pubdate": "20220815",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/DeerIsland_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "In December 2021, four sediment push cores (core names appended with 'M' for marsh push core) and peat augers (core names appended with 'R' for Russian peat auger) were collected from the marshes of Deer Island, Mississippi during U.S. Geological Survey (USGS) field activity number (FAN) 2021-351-FA. Select intervals from the manual push cores were analyzed for determination of lead-210 activities via alpha spectroscopy for development of accumulation rates using standard model methods. Twenty percent of push core samples were counted in triplicate for determination of a lead-210 activity standard deviation. Select intervals were also run on gamma spectroscopy for lead-210 activity validation and cesium-137 activities. Peat augers were collected for determination of peat thickness and were discarded in the field once described and photographed. Core locations were recorded concurrently using real-time kinematic (RTK) positioning for collection of latitude, longitude and elevation (North American Datum of 1983 (2011) [NAD83_2011] and North American Vertical Datum of 1988 [NAVD88], GEOID12B respectively).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Ellis, Alisha M.",
            "role": "Author"
        },
        {
            "name": "Smith, Christopher G.",
            "role": "Author"
        },
        {
            "name": "Everhart, Cheyenne S.",
            "role": "Author"
        },
        {
            "name": "DeWitt, Nancy T.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "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": "2064",
            "name": "push coring",
            "scope": "Use of a small, hand-held tube pressed into unconsolidated material for sampling."
        },
        {
            "thcode": 2,
            "code": "1005",
            "name": "rocks and deposits",
            "scope": "Solid masses that make up the earth's crust as well as accumulations of materials. Use for major rock types and unconsolidated deposits. For deposits of economic value, see related terms."
        },
        {
            "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": "1326",
            "name": "wetland ecosystems",
            "scope": "Ecosystems whose soil is saturated for long periods seasonally or continuously, including marshes, swamps, and ephemeral ponds.  More detailed terms for wetlands can be selected from the FGDC Wetland Classification <http:\/\/fgdc.gov\/standards\/status\/sub3_4.html>."
        },
        {
            "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": "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": [
        "2021-351-FA"
    ]
}