{
  "accessLevel": "public",
  "bureauCode": [
    "010:12"
  ],
  "contactPoint": {
    "@type": "vcard:Contact",
    "fn": "Karen Lund",
    "hasEmail": "mailto:klund@usgs.gov"
  },
  "description": "These data are for a multidisciplinary study of dikes, country rock, and alteration systems, Butte, U.S.A. Results of the study are described and interpreted in Lund and others (2018). Data included are U-Pb sensitive high-resolution ion microprobe (SHRIMP) geochronology for quartz porphyry dikes, 40Ar/39Ar thermochronologic data for biotite, hornblende, and K-feldspar from Butte granite country rock, and 40Ar/39Ar thermochronologic data for white mica and K-feldspar from alteration zones around lode veins. Also included are backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of minerals from samples dated by 40Ar/39Ar. These data are shared to meet open data requirements.",
  "distribution": [
    {
      "@type": "dcat:Distribution",
      "accessURL": "https://doi.org/10.5066/P9F872I5",
      "description": "Landing page for access to the data",
      "format": "XML",
      "mediaType": "application/http",
      "title": "Digital Data"
    },
    {
      "@type": "dcat:Distribution",
      "description": "The metadata original format",
      "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5ad91be4e4b0e2c2dd27a949.xml",
      "format": "XML",
      "mediaType": "text/xml",
      "title": "Original Metadata"
    }
  ],
  "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5ad91be4e4b0e2c2dd27a949",
  "keyword": [
    "40Ar/39Ar geochronology",
    "Ag-polymetallic lodes",
    "BSE",
    "Butte",
    "CL",
    "Cu lodes",
    "GGGSC",
    "Geology, Geophysics, and Geochemistry Science Center",
    "MRP",
    "Mineral Resources Program",
    "Montana",
    "SHRIMP",
    "U-Pb geochronology",
    "USGS:5ad91be4e4b0e2c2dd27a949",
    "United States",
    "alteration",
    "backscatter electron",
    "copper",
    "economic geology",
    "geochronology",
    "geoscientificInformation",
    "molybdenum",
    "panchromatic cathodoluminescent",
    "quartz porphyry dikes",
    "radiometric dating",
    "sensitive high-resolution ion microprobe",
    "silver",
    "zinc"
  ],
  "modified": "2020-09-29T00:00:00Z",
  "publisher": {
    "@type": "org:Organization",
    "name": "U.S. Geological Survey"
  },
  "spatial": "-112.5942, 45.9221, -112.4159, 46.0629",
  "theme": [
    "geospatial"
  ],
  "title": "U-Pb SHRIMP and 40Ar/39Ar geochronologic data and backscatter electron (BSE) and panchromatic cathodoluminescent (CL) imagery of sample materials for study of dikes, country rock, and alteration systems, Butte, U.S.A."
}