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The user should use caution in using this data, as significant knowledge and experience is often needed to interpret and apply geochronologic data to projects correctly.As the database is expanded in the future, age results from other geochronologic dating methods are anticipated to be added. Various geochronologic data from geologic mapping projects may be found here. Donations of geochronologic data in Utah are appreciated, so that these data can be permanently archived and discoverable and available to all users. Contact the UGS for more details.The GeochronProject feature class contains metadata specific to each geochronology project, including the organization and Principal Investigator who conducted the project (where known). ", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 4269, "latestWkid": 4269 }, "copyrightText": "Steve D. Bowman and Gordon E. 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