8 datasets found
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Federal
USGS Isotope: A Database of Radiogenic and Stable Isotopic Data
Department of the Interior —
USGS Isotope is a database of radiogenic and stable isotopic data from rocks and critical mineral deposits. The data set contains published elemental concentrations,... -
Federal
U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-ablation Split Stream (LASS) Analysis of Igneous and Metamorphic Zircons from the Yukon-Tanana Upland, Eastern Alaska
Department of the Interior —
This dataset contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the Yukon-Tanana... -
Federal
USGS Geochron: A Database of Geochronological and Thermochronological Dates and Data (ver. 2.0, September 2023)
Department of the Interior —
USGS Geochron is a database of geochronological and thermochronological dates and data. The data set contains published ages, dates, analytical information, sample... -
Federal
U-Pb Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Western Alaska Range
Department of the Interior —
This dataset contains U-Pb isotopic data and ages, Hf isotope data, and trace element concentrations of zircon from igneous rocks collected from the western Alaska... -
Federal
Garnet Lu-Hf Ages and Isotope Data for the Stibnite, Idaho Area
Department of the Interior —
Garnet Lu-Hf ages of the schist of Moores Station Formation (112.8 ± 6.9 Ma) and a cross-cutting garnetiferous felsic dike (99.3 ± 2.0 Ma) are the main contributions... -
Federal
USGS Geochron: Data Compilation Templates (2.0, June 2025)
Department of the Interior —
USGS Geochron is a database of geochronological and thermochronological dates and data. The USGS Geochron: Data Compilation Templates data release hosts Microsoft... -
Federal
Uranium-Lead Ages, Hafnium Isotope Ratios, and Trace Element Concentrations by Laser-Ablation Split Stream (LASS) Analysis of Igneous Zircons from the Darby Mountains Area, Seward Peninsula, Alaska
Department of the Interior —
This dataset contains uranium–lead (U-Pb) isotopic data and ages, hafnium (Hf) isotope data, and trace element concentrations of zircon from igneous rocks collected... -
Federal
Age Determinations from Various Geochronological Methods of Rock Samples in the Greater Antilles and Virgin Islands
Department of the Interior —
This data set contains various reported age determinations from various rock types collected from the larger region surrounding and including the islands of the...
8 datasets found