@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/6bcea25d-4b5e-42a2-b012-9c25b71ab575> a dcat:Dataset ;
    dct:description """Single-beam bathymetry, gravity, and magnetic data along with transit satellite navigation data was collected as part of field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971, http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.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/u/u571af/html/u-5-71-af.bath.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.grav.html http://walrus.wr.usgs.gov/infobank/u/u571af/html/u-5-71-af.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 "USGS:60a7b30c-4a28-4a2a-8421-2fb87f4fde1b" ;
    dct:issued "2025-11-22T11:43:55.988275"^^xsd:dateTime ;
    dct:modified "20201019"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-12.2204 3.1946, -12.2204 6.7912, -7.2900 6.7912, -7.2900 3.1946, -12.2204 3.1946))"^^gsp:wktLiteral ] ;
    dct:title "u571af.m77t: MGD77T data file for Geophysical data from field activity 71005 (U-5-71-AF) in Continental Margin Liberia from 10/30/1971 to 11/20/1971" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Gregory K. Miller" ;
            vcard:hasEmail <mailto:gmiller@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/6bcea25d-4b5e-42a2-b012-9c25b71ab575/resource/0728164f-1fa6-4ef6-8862-e25c688407e7>,
        <https://data.amerigeoss.org/dataset/6bcea25d-4b5e-42a2-b012-9c25b71ab575/resource/bc77897f-c1fe-48a9-bc83-0a007d84ab2f> ;
    dcat:keyword "africa",
        "amerigeo",
        "amerigeoss",
        "bathymetry",
        "bathymetry-and-elevation",
        "bathymetry-measurement",
        "ckan",
        "continental-margin-liberia",
        "distributions",
        "geo",
        "geoscientificinformation",
        "geoss",
        "gravimeter-measurement",
        "gravimetry",
        "liberia",
        "magnetic-anomalies",
        "magnetic-field-observations",
        "magnetometer-measurement",
        "marine-geology",
        "marine-geophysics",
        "marine-gravity-field",
        "marine-magnetic-field",
        "national",
        "north-america",
        "oceans",
        "seafloor-topography",
        "single-beam-echo-sounder",
        "united-states",
        "usgs-60a7b30c-4a28-4a2a-8421-2fb87f4fde1b",
        "water-depth" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/6bcea25d-4b5e-42a2-b012-9c25b71ab575/resource/0728164f-1fa6-4ef6-8862-e25c688407e7> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T14:57:17.510772"^^xsd:dateTime ;
    dct:modified "2025-11-22T11:43:55.972722"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.60a7b30c-4a28-4a2a-8421-2fb87f4fde1b.xml> ;
    dcat:mediaType "text/xml" .

<https://data.amerigeoss.org/dataset/6bcea25d-4b5e-42a2-b012-9c25b71ab575/resource/bc77897f-c1fe-48a9-bc83-0a007d84ab2f> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-07T14:57:17.510783"^^xsd:dateTime ;
    dct:modified "2025-11-22T11:43:55.973168"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <http://www.ngdc.noaa.gov/mgg/trk/trackline/united_geo_i/u571af/mgd77/> ;
    dcat:mediaType "application/http" .

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