{
    "tag": 5787,
    "title": "Marine magnetic data collected offshore Oceanside, southern California during field activity 2017-686-FA from 2017-10-23 to 2017-10-31",
    "pubdate": "2021",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P9UELSBU",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/pcmsc\/DataReleases\/CMGDS_DR_tool\/DR_P9UELSBU\/2017-686-FA_magnetics_metadata.faq.html",
    "format": null,
    "email": null,
    "descript": "This part of the data release contains marine magnetic data that were collected aboard the R\/V Snavely in 2017 on U.S. Geological Survey cruise 2017-686-FA offshore Oceanside, southern California. The magnetic field data were collected to characterize the surface and subsurface properties of the study area, including unconsolidated sediment thickness and subsurface sediment horizons.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Watt, Janet T.",
            "role": "Author"
        },
        {
            "name": "Sliter, Ray W.",
            "role": "Author"
        },
        {
            "name": "Conrad, James E.",
            "role": "Author"
        },
        {
            "name": "Lorenson, Thomas D.",
            "role": "Author"
        },
        {
            "name": "Papesh, Antoinette G.",
            "role": "Author"
        },
        {
            "name": "Warrick, Jonathan A.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "thcode": 2,
            "code": "470",
            "name": "geophysics",
            "scope": "Branch of geology studying the physical characteristics and phenomena of the earth and its atmosphere."
        },
        {
            "thcode": 2,
            "code": "677",
            "name": "magnetic field (earth)",
            "scope": "The magnetic region surrounding earth.  It is generated by the dipolar characteristic of earth's core whereby earth itself acts as a great spherical magnet with poles near, but not exactly at, the North and South poles."
        },
        {
            "thcode": 2,
            "code": "1025",
            "name": "sea-floor characteristics",
            "scope": "Geomorphic features and geographic, compositional, and textural variation in the materials composing the ocean floor. Includes both large-scale structures (such as seamounts and rises) and fine-scale variations in rocks and deposits on the sea floor."
        },
        {
            "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": "23",
            "name": "Substrate",
            "scope": "Represents the character and composition of the surface and near surface of the sea floor in subtidal or intertidal areas, as defined in the Substrate Component of CMECS or in similar classification systems. Distributions are records of substrate characteristics based on visual or photographic inspection or on analysis of samples and cores, and they also include interpretive maps classifying areas on the basis of combinations of observations, hydrodynamic models, or geological models. Assessments include evaluations of present ecological or economic values of substrate distributions, drivers of substrate change, and functions of substrates. Predictions are the results of models or projections of future substrate distributions, values, or ecological impacts, including predicted substrate changes due to natural and human forces including erosion, accretion, sea-level change, extraction, trawling, or other factors; and they are the results of scenario-based models of substrate changes on ecological or economic values under different management strategies or other human alterations."
        },
        {
            "thcode": 61,
            "code": "122",
            "name": "continental margin",
            "scope": "the zone of transition between the continents and oceans, including the continental shelf, slope, and rise."
        },
        {
            "thcode": 61,
            "code": "426",
            "name": "magnetic field observations",
            "scope": "measurement of the Earth's magnetic field at a specific location; often used to detect magnetic anomalies that reflect the nature and distribution of subsurface earth materials."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/cmgds.marine.usgs.gov\/data-releases\/media\/2020\/10.5066-P9UELSBU\/497e7ccd0d7549d4aaa5c2f7b021a3dc\/2017-686-FA_mag_map.jpg",
            "description": "Image map of magnetic anomalies overlaid on a greyscale shaded-relief bathymetry."
        }
    ],
    "fan": [
        "2017-686-FA"
    ]
}