{
"USGS Publications Warehouse": {
"schema": {
"@context": "https://schema.org",
"@type": "CreativeWork",
"additionalType": "USGS Numbered Series",
"name": "Argon geochronology of late Pleistocene to Holocene Westdahl volcano, Unimak Island, Alaska",
"identifier": [
{
"@type": "PropertyValue",
"propertyID": "USGS Publications Warehouse IndexID",
"value": "pp1709D",
"url": "https://pubs.usgs.gov/publication/pp1709D"
},
{
"@type": "PropertyValue",
"propertyID": "USGS Publications Warehouse Internal ID",
"value": 72826
},
{
"@type": "PropertyValue",
"propertyID": "DOI",
"value": "10.3133/pp1709D",
"url": "https://doi.org/10.3133/pp1709D"
}
],
"inLanguage": "en",
"isPartOf": [
{
"@type": "CreativeWorkSeries",
"name": "Professional Paper"
}
],
"datePublished": "2005",
"dateModified": "2019-05-01",
"abstract": "High-precision 40Ar/39Ar geochronology of selected lavas from Westdahl Volcano places time constraints on several key prehistoric eruptive phases of this large active volcano. A dike cutting old pyroclastic-flow and associated lahar deposits from a precursor volcano yields an age of 1,654+/-11 k.y., dating this precursor volcano as older than early Pleistocene. A total of 11 geographically distributed lavas with ages ranging from 47+/-14 to 127+/-2 k.y. date construction of the Westdahl volcanic center. Lava flows cut by an apparent caldera-rim structure yielded ages of 81+/-5 and 121+/-8 k.y., placing a maximum date of 81 ka on caldera formation. Late Pleistocene and Holocene lavas fill the caldera, but most of them are obscured by the large summit icecap.",
"description": "16 p.",
"publisher": {
"@type": "Organization",
"name": "U.S. Geological Survey"
},
"author": [
{
"@type": "Person",
"name": "Moore, Richard B. rmoore@usgs.gov",
"givenName": "Richard B.",
"familyName": "Moore",
"email": "rmoore@usgs.gov",
"affiliation": [
{
"@type": "Organization",
"name": "NH/VT office of New England Water Science Center",
"url": "https://www.usgs.gov/centers/new-england-water-science-center"
}
]
},
{
"@type": "Person",
"name": "McGimsey, Robert G. mcgimsey@usgs.gov",
"givenName": "Robert G.",
"familyName": "McGimsey",
"email": "mcgimsey@usgs.gov",
"identifier": {
"@type": "PropertyValue",
"propertyID": "ORCID",
"value": "0000-0001-5379-7779",
"url": "https://orcid.org/0000-0001-5379-7779"
},
"affiliation": [
{
"@type": "Organization",
"name": "Volcano Science Center",
"url": "https://www.usgs.gov/centers/volcano-science-center"
}
]
},
{
"@type": "Person",
"name": "Calvert, Andrew T. acalvert@usgs.gov",
"givenName": "Andrew T.",
"familyName": "Calvert",
"email": "acalvert@usgs.gov",
"identifier": {
"@type": "PropertyValue",
"propertyID": "ORCID",
"value": "0000-0001-5237-2218",
"url": "https://orcid.org/0000-0001-5237-2218"
},
"affiliation": [
{
"@type": "Organization",
"name": "Geology, Minerals, Energy, and Geophysics Science Center",
"url": "https://www.usgs.gov/centers/gmeg"
},
{
"@type": "Organization",
"name": "Volcano Science Center",
"url": "https://www.usgs.gov/centers/volcano-science-center"
}
]
}
],
"funder": [
{
"@type": "Organization",
"name": "Volcano Hazards Program",
"url": "https://www.usgs.gov/programs/VHP"
}
],
"spatialCoverage": [
{
"@type": "Place",
"additionalType": "country",
"name": "United States",
"url": "https://geonames.org/4074035"
},
{
"@type": "Place",
"additionalType": "state",
"name": "Alaska"
},
{
"@type": "Place",
"additionalType": "unknown",
"name": "Westdahl Volcano"
},
{
"@type": "Place",
"geo": [
{
"@type": "GeoShape",
"additionalProperty": {
"@type": "PropertyValue",
"name": "GeoJSON",
"value": {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
-164.87045288085938,
54.438102809740165
],
[
-164.41589355468747,
54.438102809740165
],
[
-164.41589355468747,
54.59832341427045
],
[
-164.87045288085938,
54.59832341427045
],
[
-164.87045288085938,
54.438102809740165
]
]
]
}
}
]
}
}
},
{
"@type": "GeoCoordinates",
"latitude": 54.518213112005306,
"longitude": -164.64317321777344
}
]
}
]
}
}
}