U-Pb zircon data and ages from the Richardson mining district
Twelker, Evan, and O'Sullivan, P.B., 2021, U-Pb zircon data and ages for bedrock samples from the Richardson mining district, Big Delta Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2020-14, 17 p. https://doi.org/10.14509/30555
Layer Name: metadata
Layer Description: metadata files, read me files and reports
Layer Name: geochron-data
Layer Description: Spreadsheets with geochronology lab results and a preferred age summary table.
Layer Name: geochron-summary
Layer Description: Identification numbers, coordinates, sample descriptions, and summary ages of each sample.
>geochron-data: Spreadsheets with geochronology lab results and a preferred age summary table.
>geochron-summary: Identification numbers, coordinates, sample descriptions, and summary ages of each sample.
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