{
    "tag": 14748,
    "title": "Globorotalia truncatulinoides Trace Element Geochemistry (Barium, Magnesium, Strontium, Manganese, and Calcium) from the Gulf of Mexico Sediment Trap",
    "pubdate": "20220719",
    "sername": null,
    "series_name": null,
    "issue": null,
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/spcmsc\/Gtrunc_trace_element_geochemistry_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Observations of elevated barium-to-calcium ratio (Ba\/Ca) in Globorotalia truncatulinoides have been attributed to contaminant phases, deep calcification depth and diagenetic processes. U.S. Geological Survey (USGS) scientists and their collaborators investigated intra- and inter-test Ba\/Ca variability in the non-spinose planktic foraminifer, G. truncatulinoides, from a sediment trap time series (2009-2017) in the northern Gulf of Mexico (generally 27.5\u00b0N and 90.3\u00b0W) to gain insights into the environmental influences on barium enrichment in this and other non-spinose species. Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) was used to differentiate between the elemental composition of the crust and lamellar calcite in non-encrusted (< 150 meters [m] calcification depth) and encrusted (> 250 meters calcification depth) specimens of G. truncatulinoides. For further information regarding data collection, processing methods, and\/or results and interpretive study refer to Richey and others (2022).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Reynolds, Caitlin E.",
            "role": "Author"
        },
        {
            "name": "Richey, Julie N.",
            "role": "Author"
        },
        {
            "name": "Fehrenbacher, Jennifer S.",
            "role": "Author"
        },
        {
            "name": "Davis, Catherine V.",
            "role": "Author"
        },
        {
            "name": "Spero, Howard J.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
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            "code": "311",
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            "scope": "Study of the relations between living plants and animals and their environment."
        },
        {
            "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."
        },
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            "name": "micropaleontology",
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            "name": "plankton",
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        },
        {
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            "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": 15,
            "code": "002",
            "name": "biota",
            "scope": "Flora or fauna in natural environment, for example wildlife, vegetation, biological sciences, ecology, wilderness, sea life, wetlands, habitat, biological resources"
        },
        {
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        },
        {
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        },
        {
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            "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"
        }
    ],
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}