Reanalysis of historical U.S. Geological Survey sediment samples for geochemical data from the western part of the Wrangellia terrane, Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles, Alaska

Description

The State of Alaska's Strategic and Critical Minerals (SCM) Assessment project, a State-funded Capital Improvement Project (CIP), is designed to evaluate Alaska's statewide potential for SCM resources. The SCM Assessment is being implemented by the Alaska Division of Geological & Geophysical Surveys (DGGS), and involves obtaining new airborne-geophysical, geological, and geochemical data. For the geochemical part of the SCM Assessment, thousands of historical geochemical samples from DGGS, U.S. Geological Survey (USGS), and U.S. Bureau of Mines archives are being reanalyzed by DGGS using modern, quantitative, geochemical-analytical methods. The objective is to update the statewide geochemical database to more clearly identify areas in Alaska with SCM potential. For this report, DGGS funded reanalysis of 1,682 historical USGS sediment samples from the statewide Alaska Geochemical Database Version 2.0 (AGDB2; Granitto and others, 2013). Samples were chosen from an area covering the western half of the Wrangellia Terrane in the Anchorage, Gulkana, Healy, Mt. Hayes, Nabesna, and Talkeetna Mountains quadrangles of south-central Alaska. USGS was responsible for sample retrieval from the Denver warehouse through the final quality assurance/quality control (QA/QC) of the geochemical analyses obtained through the USGS contract lab. The new geochemical data are published in this report as a coauthored DGGS report, and will be incorporated into the statewide geochemical databases of both agencies.

Resources

Name Format Description Link
0 CSDGM IMPORT ERROR: No digtinfo/formcont http://dx.doi.org/10.14509/27287
0 http://dx.doi.org/10.14509/27287

Tags

  • trace metals
  • stream sediments
  • mineral assessment
  • analyses
  • healy quadrangle
  • chemistry
  • glacial deposits
  • talkeetna mountains quadrangle
  • strategic minerals
  • geochemistry
  • critical minerals
  • nabesna quadrangle
  • geochemical data
  • trace elements
  • mount hayes quadrangle
  • geochemical surveys
  • anchorage quadrangle
  • wrangellia terrane
  • strategic and critical minerals assessment project
  • gulkana quadrangle

Topics

  • Local Government

Categories