{
 "summary": "Sourced from th National Geochronological Database: Radiometric and fission-track age determinations of geologic materials from the continental US and Alaska",
 "accessInformation": "USGS",
 "thumbnail": "thumbnail/Geology_GeoChron.png",
 "culture": "en-US",
 "name": "GeoChron",
 "description": "From the USGS\n\nAbstract:\nRadiometric ages of geological materials by K-Ar, Rb-Sr, Sm-Nd, fission track, and U-Th-Pb dating methods. A revision of DDS-14 correcting locations and providing the data in more convenient formats.\nPurpose:\nThis database is a minor revision of DDS-14, with some corrections.",
 "licenseInfo": "Please refer to the USGS NURE-HSSR geochemical database for more information",
 "title": "GeoChron",
 "tags": [
  "Geochron",
  "age",
  "geology"
 ]
}