Spatial Extent of Data

USGS Data Source

Alaska Science Center

USGS Thesaurus Keywords

Uranium-lead analysis, Metamorphic rocks, Geochronology, Sedimentary rocks

ISO 19115 Topic Category

GeoScientificInformation

Other Subject Keywords

Isotopes, U-Pb geochronology, Age determinations, U-Pb, Detrital zircon, Earth science

Place Keywords

Michigan, Wisconsin

U-Pb Isotopic Data and Dates of Zircon from the Western Upper Peninsula of Michigan and Northern Wisconsin, United States

This dataset contains U-Pb isotopic data and associated dates of zircon from sedimentary and metamorphic rocks collected from the western Upper Peninsula of Michigan and northern Wisconsin, United States. The samples were collected as part of geological mapping and research conducted from 2019 to 2023 and funded by the Mineral Resources Program of the U.S. Geological Survey. Zircon grains were separated and analyzed by GeoSep Services (GSS) from 2020 to 2024 using laser-ablation-inductively-coupled-plasma-mass spectrometry (LA-ICP-MS) techniques.

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Author(s)	James V Jones , P. O'Sullivan
Publication Date	2025-05-08
Beginning Date of Data	2025
Ending Date of Data	2025
Data Contact	U.S. Geological Survey, Alaska Science Center
DOI	https://doi.org/10.5066/P132QPL3
Citation	Jones, J.V., and O'Sullivan, P., 2025, U-Pb Isotopic Data and Dates of Zircon from the Western Upper Peninsula of Michigan and Northern Wisconsin, United States: U.S. Geological Survey data release, https://doi.org/10.5066/P132QPL3.
Metadata Contact	U.S. Geological Survey, Alaska Science Center
Metadata Date	2025-05-08
Related Publication	There was no related primary publication associated with this data release.
Citations of these data	No citations of these data are known at this time.
Access	public
License	http://www.usa.gov/publicdomain/label/1.0/

Harvest Source: ScienceBase
Harvest Date: 2025-09-05T05:04:44.179Z