{ "culture": "en-US", "name": "RockAndMinerals", "guid": "7797E9CA-F735-40EF-87F3-A7CC2160E27A", "catalogPath": "", "snippet": "Sourced from th National Geochronological Database: Radiometric and fission-track age determinations of geologic materials from the continental US and Alaska", "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.", "summary": "Sourced from th National Geochronological Database: Radiometric and fission-track age determinations of geologic materials from the continental US and Alaska", "title": "RockAndMinerals", "tags": [ "Geochron", "age", "geology" ], "type": "Map Service", "typeKeywords": [ "Data", "Service", "Map Service", "ArcGIS Server" ], "thumbnail": "thumbnail/thumbnail.png", "url": "", "extent": [ [ -120.133611172189, 34.4414308938937 ], [ -114.643252842784, 40.8838606083534 ] ], "spatialReference": "WGS_1984_Web_Mercator_Auxiliary_Sphere", "accessInformation": "USGS", "licenseInfo": "" }