{
    "tag": 19168,
    "title": "X-ray diffraction data for the 0-2 cm horizons of marine sediment cores and a mineral concretion near waste barrels in the San Pedro Basin of the Southern California Borderland",
    "pubdate": "20250618",
    "sername": null,
    "series_name": null,
    "issue": "DOI: 10.5066\/P1PZ48WA",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P1PZ48WA\/FK210726_SCB_barrel_sediment_XRD_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Marine sediment push cores and one mineral concretion were collected near waste barrels in the San Pedro Basin of the Southern California Borderland in the Pacific Ocean using a remotely operated vehicle during the Schmidt Ocean Institute research cruise FK210726 onboard the R\/V Falkor in 2021. Dried sediment samples of the 0-2 centimeter horizon of the cores and the mineral concretion were prepared at the USGS Pacific Coastal and Marine Science Center for powder x-ray diffraction analyses, and x-ray diffraction scan data are provided here. Location information (latitude, longitude, depth) for each sample are provided in each Attribute Definition of this metadata file. The x-ray diffraction work was funded by the U.S Geological Survey Pacific Coastal and Marine Science Center and ship time was funded by NOAA Office of Ocean Exploration and Research (grant number NA19OAR110305).",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Mizell, Kira L.",
            "role": "Author"
        },
        {
            "name": "Shapiro, Isabelle M.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "153",
            "name": "chemical analysis",
            "scope": "Chemical techniques used to identify the composition of substances."
        },
        {
            "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."
        },
        {
            "thcode": 2,
            "code": "1337",
            "name": "x-ray diffraction",
            "scope": "Study of crystals which uses short wave electromagnetic radiations (x-rays). The xrays, scattered by the crystal atoms, show a characteristic interference pattern that is dependent upon the structure of the crystal."
        },
        {
            "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": "7",
            "name": "Nonliving Resources",
            "scope": "Data are about chemical, physical, or geological features that are of use or importance to humans or ecologies."
        },
        {
            "thcode": 23,
            "code": "20",
            "name": "Physical\/Chemical Features",
            "scope": "Geological, chemical, or hydrodynamic features that are ecologically important or influence patterns of human uses of the ocean. Examples include seamounts, persistent upwelling zones, areas of low dissolved oxygen, and areas of reduced pH. Distributions are recorded observations of parameters and features, often as a function of time as well as place, also including maps and three-dimensional predictions of distributions based on combinations of observations and theory. Distributions of physical and chemical features (for example, physical habitat, substrate, or bathymetry) are often used as data to support habitat-biota models. Assessments provide information about the value, impact, drivers, connections, or functions of a feature in its present distributions, or they evaluate the effects of physical\/chemical features on ecology or suitability for use. Assessments can include climate change models that project environmental effects of climate change and acidification. Larger assessments that combine physical\/chemical features with other Resources and Uses categories can appropriately be included here and also in the other related Resources or Uses categories. Predictions are the results of models or projections of future distributions, values, or impacts, which include anticipated changes produced by natural and human processes, and they are also the results of scenario-testing models for comparing outcomes of different management actions."
        },
        {
            "thcode": 61,
            "code": "110",
            "name": "basin",
            "scope": "used for large topographic depressions, both subaerial and submarine; distinct from (but sometimes related to) sedimentary basins and structural basins."
        },
        {
            "thcode": 61,
            "code": "42",
            "name": "coastal pollution",
            "scope": "municipal, industrial, and agricultural waste introduced to coastal environments."
        },
        {
            "thcode": 61,
            "code": "243",
            "name": "dump site",
            "scope": "disposal site for refuse or industrial waste; includes both terrestrial and submarine sites."
        },
        {
            "thcode": 61,
            "code": "719",
            "name": "marine geology",
            "scope": "used for geological and related studies of ocean basins and margins."
        },
        {
            "thcode": 61,
            "code": "720",
            "name": "mineralogy",
            "scope": "the study of the chemistry, crystalline structure, and physical properties of minerals."
        },
        {
            "thcode": 61,
            "code": "317",
            "name": "sedimentary waste disposal",
            "scope": "the effects of anthropogenic waste products on natural sedimentary environments."
        },
        {
            "thcode": 61,
            "code": "726",
            "name": "sedimentology",
            "scope": "the study of sediments, sedimentary processes, and the origin of sedimentary rocks."
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2021-637-FA"
    ]
}