{
    "tag": 18137,
    "title": "Locations and grain-size analysis results of sediment samples collected in Cape Cod Bay, Massachusetts, in September 2019 by the U.S. Geological Survey during field activity 2019-034-FA (point shapefile and CSV file, GCS WGS 84, MLLW vertical datum)",
    "pubdate": "20220718",
    "sername": null,
    "series_name": null,
    "issue": "DOI:10.5066\/P99DR4PN",
    "publish": null,
    "publisher_name": null,
    "onlink": "https:\/\/cmgds.marine.usgs.gov\/catalog\/whcmsc\/DRB_data_release\/DRB_P99DR4PN\/2019-034-FA_samples_meta.faq.html",
    "format": null,
    "email": null,
    "descript": "Accurate data and maps of sea floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. To address these concerns the U.S. Geological Survey, in cooperation with the Massachusetts Office of Coastal Zone Management (CZM), comprehensively mapped the Cape Cod Bay sea floor to characterize the surface and shallow subsurface geologic framework. Geophysical data collected include swath bathymetry, backscatter, and seismic reflection profile data. Ground-truth data, including sediment samples, underwater video, and bottom photographs were also collected. This effort is part of a long-term collaboration between the USGS and the Commonwealth of Massachusetts to map the State's waters, support research on the Quaternary evolution of coastal Massachusetts, the influence of sea-level change and sediment supply on coastal evolution, and efforts to understand the type, distribution, and quality of subtidal marine habitats. This collaboration produces high-resolution geologic maps and Geographic Information System (GIS) data that serve the needs of research, management and the public. Data collected as part of this mapping cooperative continue to be released in a series of USGS Open-File Reports and Data Releases (https:\/\/www.usgs.gov\/centers\/whcmsc\/science\/geologic-mapping-massachusetts-seafloor). This data release provides the geophysical and geologic sampling data collected in Cape Cod Bay during USGS Field Activities 2019-002-FA and 2019-034-FA in 2019.",
    "lang": null,
    "journal": null,
    "pwid": null,
    "originator": [
        {
            "name": "Huntley, Emily C.",
            "role": "Author"
        },
        {
            "name": "Ackerman, Seth D.",
            "role": "Author"
        },
        {
            "name": "Foster, David S.",
            "role": "Author"
        },
        {
            "name": "Andrews, Brian D.",
            "role": "Author"
        },
        {
            "name": "Danforth, William W.",
            "role": "Author"
        },
        {
            "name": "Baldwin, Wayne E.",
            "role": "Author"
        },
        {
            "name": "Worley, Charles R.",
            "role": "Author"
        },
        {
            "name": "Brothers, Laura L.",
            "role": "Author"
        }
    ],
    "index_term": [
        {
            "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": "493",
            "name": "grain-size analysis",
            "scope": "Method of studying soils, sediments, sands, or rock by determining the size, distribution, and proportion of selected particles."
        },
        {
            "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": "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": 2,
            "code": "1199",
            "name": "unconsolidated deposits",
            "scope": "Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys."
        },
        {
            "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": "013",
            "name": "location",
            "scope": "Positional information and services, for example addresses, geodetic networks, geodetic control points, postal zones and services, place names, geographic names"
        },
        {
            "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": 61,
            "code": "111",
            "name": "bay",
            "scope": "a recess in the shoreline, typically bounded by capes or headlands."
        },
        {
            "thcode": 61,
            "code": "123",
            "name": "continental shelf",
            "scope": "the gently sloping sea floor between the coast and the continental slope."
        },
        {
            "thcode": 61,
            "code": "475",
            "name": "grab sampling",
            "scope": "obtaining sediment or rock samples by dropping a clamshell device onto the sea floor."
        },
        {
            "thcode": 61,
            "code": "719",
            "name": "marine geology",
            "scope": "used for geological and related studies of ocean basins and margins."
        },
        {
            "thcode": 61,
            "code": "519",
            "name": "sediment analysis",
            "scope": "laboratory analysis of sediment samples in support of a variety of geological and biological research topics (sedimentology, stratigraphy, benthic habitats, and others)."
        }
    ],
    "place_term": [],
    "image": [
        {
            "name": "https:\/\/cmgds.marine.usgs.gov\/data-releases\/media\/2021\/10.5066-P99DR4PN\/e513edfd10e54f2a94a310592ce1a509\/2019-034-FA_samples_browse.jpg",
            "description": "Map of sediment sample locations in the survey area in Cape Cod Bay, Massachusetts."
        }
    ],
    "fan": [
        "2019-034-FA"
    ]
}