@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d> a dcat:Dataset ;
    dct:description "Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying, the only way to represent this data was to generate an analog map with contour lines. This dataset is a representation of the digitized contour lines either by following the lines or by choosing the intersection of the contour and flight-line to create a value of the magnetic field. The values presented are latitude, longitude, and map magnetic-field values." ;
    dct:identifier "f90d8234-edd9-49e4-829e-bff76d67799d" ;
    dct:issued "2025-12-02T08:13:41.073541"^^xsd:dateTime ;
    dct:modified "2025-12-02T08:13:41.073547"^^xsd:dateTime ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Airborne geophysical survey: Central Sierra Nevada, California" ;
    dcat:distribution <https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/964e2aee-8dd4-4f66-8fc5-994a6f755da4>,
        <https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/96b75fef-fb7d-4cd0-b1cc-7afa3f49b4c8>,
        <https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/e6732993-0ac4-44d8-926a-c97e642afda6> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "geo",
        "geoss",
        "national",
        "north-america",
        "united-states" .

<https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/964e2aee-8dd4-4f66-8fc5-994a6f755da4> a dcat:Distribution ;
    dct:format "ASCII" ;
    dct:issued "2019-07-04T00:39:31.343657"^^xsd:dateTime ;
    dct:modified "2025-12-02T08:13:41.066956"^^xsd:dateTime ;
    dct:title "ASCII" ;
    dcat:accessURL <http://crustal.usgs.gov/geophysics/index.html%20for%20link%20to%20report> .

<https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/96b75fef-fb7d-4cd0-b1cc-7afa3f49b4c8> a dcat:Distribution ;
    dct:description "Flight-line airborne magnetic anomaly measurements" ;
    dct:format "TEXT" ;
    dct:issued "2019-07-04T00:39:31.343673"^^xsd:dateTime ;
    dct:modified "2025-12-02T08:13:41.067380"^^xsd:dateTime ;
    dct:title "CSV" ;
    dcat:accessURL <http://mrdata.usgs.gov/geophysics/surveys/geophysics3/CA/ca4148.txt> .

<https://data.amerigeoss.org/dataset/f90d8234-edd9-49e4-829e-bff76d67799d/resource/e6732993-0ac4-44d8-926a-c97e642afda6> a dcat:Distribution ;
    dct:format "QGIS" ;
    dct:issued "2019-07-04T00:39:31.343678"^^xsd:dateTime ;
    dct:modified "2025-12-02T08:13:41.067773"^^xsd:dateTime ;
    dct:title "QGIS File" ;
    dcat:accessURL <https://mrdata.usgs.gov/magnetic/show-survey.php?id=CA4148_pg.shp> .

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