U-Pb and Lu-Hf isotope, age, and trace-element data from zircons at four sites in the western Alaska Range and Talkeetna Mountains, Alaska

Description

This Division of Geological & Geophysical Surveys (DGGS) Raw Data File presents U-Pb geochronology and Lu-Hf isotopic compositions, age-dating results, and additional trace-elemental composition of zircons from four granitoids sampled during investigations by DGGS geologists in the western Alaska Range and the Talkeetna Mountains. The purpose of the Lu-Hf and U-Pb isotopic study was to better understand the Jurassic through early Tertiary magmatic and tectonic evolution of the Alaska Range and the significance of that magmatism for the formation of metallic mineral deposits. The U-Pb isotopic data also serve to further refine the crystallization age of plutons, which were previously ambiguous in 40Ar/39Ar geochronology studies.

Resources

Name Format Description Link
0 http://doi.org/10.14509/29163
0 http://doi.org/10.14509/29531
0 http://doi.org/10.14509/27181
0 http://doi.org/10.14509/29470
0 http://doi.org/10.14509/29717
0 http://doi.org/10.14509/29134
0 http://doi.org/10.14509/29119
0 http://doi.org/10.14509/29480
0 http://doi.org/10.14509/29140
0 http://doi.org/10.14509/27284
0 http://doi.org/10.14509/29454
0 http://doi.org/10.14509/29160
0 http://doi.org/10.14509/26803
0 http://doi.org/10.14509/27312
0 CSDGM IMPORT ERROR: No digtinfo/formcont http://doi.org/10.14509/29717
0 http://doi.org/10.14509/26821
0 http://doi.org/10.14509/27289
0 http://doi.org/10.14509/29139

Tags

  • plutonic
  • hafnium
  • zircon
  • methods
  • rocks
  • plutons
  • resources
  • geophysics
  • geochronology
  • granite
  • cretaceous
  • lime hills quadrangle
  • isotopes
  • talkeetna mountains
  • minerals
  • uranium
  • geologic
  • analyses
  • lead
  • tertiary
  • bedrock
  • geology
  • talkeetna mountains quadrangle
  • jurassic
  • geochemistry
  • lutetium
  • analyses and sampling
  • u-pb
  • trace elements
  • wrangellia terrane
  • lab methods
  • paleocene
  • age dates
  • alaska range
  • mineralogy
  • statemap project
  • analytical results
  • analytical lab results

Topics

  • Local Government

Categories