{
    "tag": 19512,
    "title": "Rock magnetic measurements of sediments from the Terrebonne Basin, Gulf of America (Gulf of Mexico), Walker Ridge 313 Site H",
    "pubdate": "2025",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5281\/zenodo.14775361",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/zenodo\/ZEN_14775361\/mag-susc-UT-GOM2-2_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "These data include magnetic susceptibility measured at high and low frequency on discrete sediment samples collected from the Terrebonne Basin, Gulf of America, drilled as part of the Deepwater Hydrate Coring Expedition (UT-GOM2-2) at Walker Ridge 313 Site H Holes H003 and H002.This 2023 Department of Energy funded project was focused on better understanding microbial methane generation in marine sediments and characterizing coarse-grained gas hydrate reservoirs. Sediments were recovered continuously down to 155 meters below the seafloor and as spot cored intervals down to 861 meters below the seafloor. Cores were recovered using both conventional and pressure cores. Mass-normalized and frequency-dependent magnetic susceptibility was measured to support interpretations of depositional and diagenetic processes.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Phillips, Stephen C.",
            "role": "Author"
        },
        {
            "name": "Widlansky, S.J.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "212",
            "name": "core analysis",
            "scope": "Study of the composition and layers of cylindrical samples of rocks, trees, ice, and other materials extracted by drilling into a mass. Intended for broad use for the analysis of all types of core samples. The combination of this term with other terms will convey the context of the activity."
        },
        {
            "thcode": 2,
            "code": "248",
            "name": "diagenesis",
            "scope": "Chemical, physical, and biological changes in sediment during and after its conversion to rock (lithification)."
        },
        {
            "thcode": 2,
            "code": "281",
            "name": "drilling and coring",
            "scope": "Cutting into the subsurface, for example into underground strata, ice, or a tree trunk, to remove material for examination. Intended for broad use wherever coring is done. The combination of this term with other terms will convey the context of the activity."
        },
        {
            "thcode": 2,
            "code": "1773",
            "name": "interagency programs",
            "scope": "Ongoing organizational activities in which USGS works directly with other government agencies"
        },
        {
            "thcode": 2,
            "code": "1742",
            "name": "magnetic susceptibility",
            "scope": "Degree to which a rock type or other earth material can acquire and retain the orientation and intensity of an applied magnetic field."
        },
        {
            "thcode": 2,
            "code": "680",
            "name": "magnetic susceptibility analysis",
            "scope": "Nondestructive evaluation and location of magnetic materials in rock based on measuring the intensity of attraction of the materials to an induced magnetic field. Applications include geological and soil surveys, paleomagnetic studies, sedimentology, archaeological prospecting and core logging."
        },
        {
            "thcode": 2,
            "code": "2062",
            "name": "piston coring",
            "scope": "Use of a piston mechanism and a weight with a triggering mechanism to drive a coring tube deep into underwater sediments for extraction and study."
        },
        {
            "thcode": 2,
            "code": "2065",
            "name": "rotary drilling",
            "scope": "Use of machinery to drive a rotating bit through earth materials in order to sample below the surface."
        },
        {
            "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": 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"
        }
    ],
    "place_term": [],
    "image": [],
    "fan": [
        "2023-021-FA"
    ]
}