{
    "tag": 15696,
    "title": "Radiocarbon age dating of biological material from cores collected off central California in 1999, 2006, and 2019",
    "pubdate": "20230925",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9FWTKZQ",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9FWTKZQ\/Central_California_AgeData_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Results of radiocarbon age dating of planktic and benthic foraminifera collected from cores obtained in 1999, 2006, and 2019 offshore central California in the vicinity of Morro Bay.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "McGann, Mary L.",
            "role": "Author"
        },
        {
            "name": "Paull, Charles K.",
            "role": "Author"
        },
        {
            "name": "Lundsten, Eve M.",
            "role": "Author"
        },
        {
            "name": "Gwiazda, Roberto",
            "role": "Author"
        },
        {
            "name": "Walton, Maureen A. L.",
            "role": "Author"
        },
        {
            "name": "Nieminski, Nora M.",
            "role": "Author"
        },
        {
            "name": "Lorenson, Thomas D.",
            "role": "Author"
        },
        {
            "name": "Lee, Homa J.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "143",
            "name": "carbon-14 analysis",
            "scope": "Method to determine the age of organic geologic and archaeological specimens, aged approximately 3,000 to 50,000 years, by determining the decay of the radioactive isotope carbon-14."
        },
        {
            "thcode": 2,
            "code": "153",
            "name": "chemical analysis",
            "scope": "Chemical techniques used to identify the composition of substances."
        },
        {
            "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": "703",
            "name": "marine chemistry",
            "scope": "Branch of chemistry that deals with the properties, composition, structure, and interaction of substances in the seas and oceans."
        },
        {
            "thcode": 2,
            "code": "843",
            "name": "organisms",
            "scope": "Living individuals that grow, reproduce, and die."
        },
        {
            "thcode": 2,
            "code": "940",
            "name": "protists",
            "scope": "Unicellular eukaryotes (organisms possessing nucleated cells) with affinities to both plants and animals. Classed in the Protista or Potoctista kingdom, they include protozoans, foraminifera, radiolarians, fungi and some algae."
        },
        {
            "thcode": 2,
            "code": "940",
            "name": "protists",
            "scope": "Unicellular eukaryotes (organisms possessing nucleated cells) with affinities to both plants and animals. Classed in the Protista or Potoctista kingdom, they include protozoans, foraminifera, radiolarians, fungi and some algae."
        },
        {
            "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": 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"
        },
        {
            "thcode": 23,
            "code": "27",
            "name": "Habitat",
            "scope": "Habitat includes data that describe repeatable combinations of biota and associated chemical, physical, or geological features in a distinct place, which, as in the CMECS Biotic Component, generally are named for the dominant taxa living there. Habitat also includes biotopes in accordance with CMECS. Examples include seagrass beds, deep-water corals, benthos, nekton, plankton, mussel beds. Distributions for Habitat data subject types include records of biotic associations, habitats, or biotopes obtained through direct observation, imagery, collection, or other methods; Distributions also include biotope maps, predicted maps of present-day habitats (for example, the Northwest Atlantic Marine Ecoregional Assessment, Mapping European Seabed Habitats), and other compilations or interpretations from observed data. Assessments include ecological valuation indices, presence, quantity (hectares), or percentage of identified high-value habitats; other purpose-driven, regionally-specific indicators of ecological value; classifications of areas as critical habitat; ecological services models; evaluations of habitat condition; and place-based indices of susceptibility and vulnerability to disturbance. Predictions are the results of models or projections of future distributions, values, or impacts; anticipated changes produced by natural and human processes; future projections of cumulative impacts of single or multiple stressors; and scenario-testing habitat loss\/gain models and predictions of related ecological or economic effects under different management strategies."
        },
        {
            "thcode": 61,
            "code": "751",
            "name": "chemical oceanography",
            "scope": "the study of the chemistry of oceans, often with a focus on chemical cycling."
        },
        {
            "thcode": 61,
            "code": "282",
            "name": "fragile ecosystems",
            "scope": "used for ecosystems that are sensitive to environmental changes."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2019-603-FA",
        "2019-642-FA",
        "2019-667-FA",
        "O399MB",
        "W406MB"
    ]
}