U-Pb Isotopic Data and Ages of Detrital Zircon from Selected Rocks from northern Yukon, Canada
Dates
Publication Date
2023-01-23
Last Revision
2023-06
Citation
Jones, J.V. III, Dumoulin, J.A., Lane, L.S., Poulton, T., O'Sullivan, P., 2023, U-Pb isotopic data and ages of detrital zircon from selected rocks from northern Yukon, Canada (ver 1.1, June 2023): U.S. Geological Survey Data Release, https://doi.org/10.5066/P9RRTBAO.
Summary
This data set contains U-Pb isotopic data and associated ages of detrital zircon from sedimentary and metasedimentary rocks collected in northern Yukon, Canada. The samples were originally collected as part of geological mapping and research conducted by the Geological Survey of Canada. They were recovered from archived collections and sent to the U.S. Geological Survey for analysis of detrital zircon using U-Pb geochronology methods. Detrital zircon grains were separated and analyzed by GeoSep Services (GSS) in 2015 using laser-ablation-inductively-coupled-plasma-mass spectrometry (LA-ICP-MS) techniques.
Summary
This data set contains U-Pb isotopic data and associated ages of detrital zircon from sedimentary and metasedimentary rocks collected in northern Yukon, Canada. The samples were originally collected as part of geological mapping and research conducted by the Geological Survey of Canada. They were recovered from archived collections and sent to the U.S. Geological Survey for analysis of detrital zircon using U-Pb geochronology methods. Detrital zircon grains were separated and analyzed by GeoSep Services (GSS) in 2015 using laser-ablation-inductively-coupled-plasma-mass spectrometry (LA-ICP-MS) techniques.
Jones, J.V. III, Todd, E., Box, S.E., Haeussler, P.J., Holm-Denoma, C.S., Karl, S.M., Graham, G.E., Bradley, D.C., Kylander-Clark, A.R.C., Friedman, R.M., Layer, P.W., 2021. Cretaceous to Oligocene magmatic and tectonic evolution of the western Alaska Range: Insights from U-Pb and 40Ar/39Ar geochronology. Geosphere 17(1):118-153, https://doi.org/10.1130/GES02303.1
U-Pb isotopic ages of detrital zircon grains aid in the interpretation of sediment sources, and pathways during original deposition of sedimentary rocks. The youngest detrital zircon ages in any single sample also provides information about the maximum possible depositional age of the sediment and, therefore, the geologic unit that contains it. Comparison of detrital zircon age populations between samples provides a critical test of local to regional correlations of geologic units and aids in the reconstruction of geologic histories of large regions. In this study, the data were used to compare age and provenance patterns in Jurassic strata from northern Yukon, Canada, with similar-aged units in central and eastern Alaska. These data will be used in support of multiple geological maps, reports, and papers that describe the geological framework of these regions.
