Data for Uranium-Lead Isotope Geochronology from Select Projects in Alaska

This dataset consists of three tables containing sample information and uranium-lead (U-Pb) isotopic data and U-Pb ages measured in zircon collected from igneous rocks in Alaska. The samples were collected between 2019 and 2023 and analyzed by laser ablation inductively-coupled plasma mass spectrometry (LA-ICP-MS) by GeoSep Services. The dataset includes 412 analyses across 13 samples. The data are presented as-is, with all outliers included. Preferred weighted mean 206Pb/238U ages of each sample, with some inherited grains excluded, are listed separately in the Sample Summary table. Methods are detailed in the accompanying metadata.