40Ar/39Ar data, Alaska Highway corridor from Delta Junction to Canada border, parts of Mount Hayes, Tanacross, and Nabesna quadrangles, Alaska

Description

40Ar/39Ar analyses of igneous rocks from the Alaska Highway corridor between Delta Junction and the Canada border show a range of Cretaceous ages from about 68 Ma to about 112 Ma. The 25 samples fall into two broad age groups. The younger group ranges from about 68 Ma to 73 Ma; the older group ranges from a minimum age of about 84 Ma to about 103 Ma. One sample, a mafic dike, yielded an older age of about 112 Ma.

Resources

Name Format Description Link
0 http://dx.doi.org/10.14509/19742
0 http://dx.doi.org/10.14509/24624
0 http://dx.doi.org/10.14509/23923
0 http://dx.doi.org/10.14509/26761
0 http://dx.doi.org/10.14509/19743
0 http://dx.doi.org/10.14509/19741
0 http://dx.doi.org/10.14509/23444
0 http://dx.doi.org/10.14509/16021
0 http://dx.doi.org/10.14509/23443
0 CSDGM IMPORT ERROR: No digtinfo/formcont http://dx.doi.org/10.14509/26841
0 http://dx.doi.org/10.14509/17961
0 http://dx.doi.org/10.14509/17981
0 http://dx.doi.org/10.14509/17621
0 http://dx.doi.org/10.14509/17901
0 http://dx.doi.org/10.14509/21121
0 http://dx.doi.org/10.14509/26841

Tags

  • tanacross quadrangle
  • 40ar/39ar
  • sample location
  • geochronology
  • cretaceous
  • bedrock
  • alaska highway corridor
  • geology
  • bedrock geology
  • ar-ar
  • analyses and sampling
  • nabesna quadrangle
  • yukon-tanana terrane
  • mount hayes quadrangle
  • lab methods
  • age dates
  • yukon-tanana upland
  • analytical results
  • analytical lab results

Topics

  • Local Government

Categories