@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/1ca4575e-c178-4b54-84c9-9da11dcd827d> a dcat:Dataset ;
    dct:description """Single-beam bathymetry and magnetics data along with DGPS navigation data was collected as part of field activity L-6-85-NC in Northern California from 09/03/1985 to 09/20/1985, http://walrus.wr.usgs.gov/infobank/l/l685nc/html/l-6-85-nc.meta.html
These data are reformatted from space-delimited ASCII text files located in the Coastal and Marine Geology Program (CMGP) InfoBank field activity catalog at http://walrus.wr.usgs.gov/infobank/l/l685nc/html/l-6-85-nc.bath.html and http://walrus.wr.usgs.gov/infobank/l/l685nc/html/l-6-85-nc.mag.html into MGD77T format provided by the NOAA's National Geophysical Data Center(NGDC). The MGD77T format includes a header (documentation) file (.h77t) and a data file (.m77t). More information regarding this format can be found in the publication listed in the Cross_reference section of this metadata file.""" ;
    dct:identifier <http://datainventory.doi.gov/id/dataset/usgs-8f6e45c3-e285-4986-8d67-bce0a659f04e> ;
    dct:issued "2025-09-24T05:08:37.916160"^^xsd:dateTime ;
    dct:modified "2020-10-19T00:00:00+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-128.1343 40.5240, -128.1343 44.6262, -124.0439 44.6262, -124.0439 40.5240, -128.1343 40.5240))"^^gsp:wktLiteral ] ;
    dct:title "l685nc.m77t - MGD77 data file for Geophysical data from field activity L-6-85-NC in Northern California from 09/03/1985 to 09/20/1985" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Gregory K. Miller" ;
            vcard:hasEmail <mailto:gmiller@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/1ca4575e-c178-4b54-84c9-9da11dcd827d/resource/43124b96-467b-4181-81bf-63b04c00b7a3>,
        <https://data.amerigeoss.org/dataset/1ca4575e-c178-4b54-84c9-9da11dcd827d/resource/e04b1964-17a7-45cd-a9b4-bd18d0c6fafb> ;
    dcat:keyword "AmeriGEO",
        "AmeriGEOSS",
        "CKAN",
        "GEO",
        "GEOSS",
        "National",
        "North America",
        "United States",
        "bathymetry",
        "bathymetry-and-elevation",
        "bathymetry-measurement",
        "ca",
        "distributions",
        "geoscientificinformation",
        "magnetic-anomalies",
        "magnetic-field-observations",
        "magnetometer-measurement",
        "marine-geology",
        "marine-geophysics",
        "marine-magnetic-field",
        "north-pacific-ocean",
        "northern-california",
        "northern-pacific-ocean",
        "oceans",
        "pacific-northwest-eez",
        "seafloor-topography",
        "single-beam-echo-sounder",
        "usa",
        "usgs-8f6e45c3-e285-4986-8d67-bce0a659f04e",
        "water-depth" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/1ca4575e-c178-4b54-84c9-9da11dcd827d/resource/43124b96-467b-4181-81bf-63b04c00b7a3> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2025-09-14T12:25:44.482332"^^xsd:dateTime ;
    dct:modified "2025-09-24T05:08:37.880751"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <http://www.ngdc.noaa.gov/mgg/trk/trackline/samuel_p._lee/l685nc/mgd77/> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/1ca4575e-c178-4b54-84c9-9da11dcd827d/resource/e04b1964-17a7-45cd-a9b4-bd18d0c6fafb> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2025-09-17T06:31:04.418239"^^xsd:dateTime ;
    dct:modified "2025-09-24T05:08:37.879455"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.8f6e45c3-e285-4986-8d67-bce0a659f04e.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "United States" .