{
    "tag": 12285,
    "title": "Geochemical analysis of seeps along the Queen Charlotte Fault",
    "pubdate": "2019",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9RK94EE",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/ScienceBase\/DR_P9RK94EE\/QCF_Geochemistry_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "Geochemical analyses of authigenic carbonates, bivalves, and pore fluids were performed on samples collected from seep fields along the Queen Charlotte Fault, a right lateral transform boundary that separates the Pacific and North American tectonic plates. Samples were collected using grab samplers and piston cores, and were collected during three different research cruises in 2011, 2015, and 2017.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Prouty, Nancy G.",
            "role": "Author"
        },
        {
            "name": "Lorenson, Thomas D.",
            "role": "Author"
        },
        {
            "name": "Law, Michael D.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "153",
            "name": "chemical analysis",
            "scope": "Chemical techniques used to identify the composition of substances."
        },
        {
            "thcode": 2,
            "code": "2067",
            "name": "grab sampling",
            "scope": "Use of a mechanical device to seize a volume of unconsolidated surficial material for study.  This term applies when the device used is specifically crafted for grab sampling."
        },
        {
            "thcode": 2,
            "code": "654",
            "name": "light stable isotope analysis",
            "scope": "Analytical technique using mass spectrometry to measure the different isotopic forms of low mass (light) elements such as oxygen, hydrogen, carbon, nitrogen and sulfur that occur in samples."
        },
        {
            "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": "757",
            "name": "mollusks",
            "scope": "Invertebrates belonging to the phylum Mollusca with soft, nonsegmented bodies, often covered by a hard shell.  Includes snails, clams, oysters, whelks, mussels, slugs, octopuses, and squids."
        },
        {
            "thcode": 2,
            "code": "859",
            "name": "paleoceanography",
            "scope": "Study of the oceans in the geologic past, including their physical, chemical, biologic, and geologic history."
        },
        {
            "thcode": 2,
            "code": "1657",
            "name": "Quaternary",
            "scope": "Period of geologic time approximately 2.6 million years ago extending to the present. In new studies, this term is deprecated in favor of Holocene and Pleistocene. https:\/\/doi.org\/10.3133\/fs20103059"
        },
        {
            "thcode": 2,
            "code": "1036",
            "name": "sedimentation",
            "scope": "Process of deposition of sediments (loose, uncemented pieces of rock, mineral fragments, or biological materials).  The sediments settle out of water or air into layers on a surface."
        },
        {
            "thcode": 2,
            "code": "1091",
            "name": "specimen collecting",
            "scope": "Taking of samples from the environment for study."
        },
        {
            "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": 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": "695",
            "name": "geochemistry",
            "scope": "the study of the chemical composition and genesis of earth materials."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/www.sciencebase.gov\/catalog\/file\/get\/5c4f4a04e4b0708288f78e07?name=2017-STN40.jpg&allowOpen=true",
            "description": "In-situ photograph of authigenic carbonate (sample 2017-STN40)."
        }
    ],
    "fan": [
        "2017-652-FA"
    ]
}