@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/296c284b-8f84-4118-90c8-2ebfa9e178ee> a dcat:Dataset ;
    dct:description """A total of 119 passive seismic soundings were collected with Tromino (MoHo s.r.l.) 3-axis seismometers in the Fountain Creek area to partially refine alluvial aquifer thickness (depth to bedrock) estimates, particularly over known or suspected paleochannels.  Data were collected during June 21-24, 2021 with a team of 4-5 people, each equipped with a Tromino Blu or Tromino 3G passive seismometer.  A subset of the data included measurements made for shear velocity calibration; this included data collected at 10 well sites where depth to bedrock was available from driller's logs, and 3 sites above cutbanks where bedrock outcropped and the thickness of alluvial sediments could be directly measured. Data were processed using a publicly available batch R processing script (Terry, 2022).  
In picking depths from the 119 measurements for alluvial aquifer thickness, roughly 30% were deemed unusable, 14% were picked with low confidence, 38% were picked with medium confidence, and 18% were picked with high confidence.  Calibration data suggested a shear wave velocity of 195 meters per second.  Using this value, estimated alluvial aquifer thicknesses ranged from 1.7 to 26.8 meters.""" ;
    dct:identifier "USGS:615cb55ed34e7b019242b8ff" ;
    dct:issued "2025-11-20T15:06:15.036152"^^xsd:dateTime ;
    dct:modified "20220113"^^xsd:gYear ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-104.7931 38.6533, -104.7931 38.7825, -104.6523 38.7825, -104.6523 38.6533, -104.7931 38.6533))"^^gsp:wktLiteral ] ;
    dct:title "Passive seismic (HVSR) data from Fountain Creek, CO" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Neil Terry" ;
            vcard:hasEmail <mailto:nterry@usgs.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/296c284b-8f84-4118-90c8-2ebfa9e178ee/resource/9f263384-9e8d-4ea1-8e03-f7530f3496e1>,
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    dcat:keyword "amerigeo",
        "amerigeoss",
        "ckan",
        "colorado",
        "environment",
        "fountain-creek",
        "geo",
        "geophysics",
        "geoscientificinformation",
        "geoss",
        "inlandwaters",
        "national",
        "north-america",
        "united-states",
        "usgs-615cb55ed34e7b019242b8ff" ;
    dcat:theme <%7Bgeospatial%7D> .

<https://data.amerigeoss.org/dataset/296c284b-8f84-4118-90c8-2ebfa9e178ee/resource/9f263384-9e8d-4ea1-8e03-f7530f3496e1> a dcat:Distribution ;
    dct:description "Landing page for access to the data" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:45:25.946652"^^xsd:dateTime ;
    dct:modified "2025-11-20T15:06:15.027491"^^xsd:dateTime ;
    dct:title "Digital Data" ;
    dcat:accessURL <https://doi.org/10.5066/P9H3D9JG> ;
    dcat:mediaType "application/http" .

<https://data.amerigeoss.org/dataset/296c284b-8f84-4118-90c8-2ebfa9e178ee/resource/b24e7dd2-3a9f-43c4-809e-ba2150d1b99f> a dcat:Distribution ;
    dct:description "The metadata original format" ;
    dct:format "XML" ;
    dct:issued "2022-07-28T19:45:25.946641"^^xsd:dateTime ;
    dct:modified "2025-11-20T15:06:15.026933"^^xsd:dateTime ;
    dct:title "Original Metadata" ;
    dcat:accessURL <https://data.usgs.gov/datacatalog/metadata/USGS.615cb55ed34e7b019242b8ff.xml> ;
    dcat:mediaType "text/xml" .

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