This Data Series summarizes results from July 2013 sampling in the western Alaska Range near Mount Estelle, Alaska. The fieldwork combined in situ and camp-based spectral measurements of talus/soil and rock samples. Five rock and 48 soil samples were submitted for quantitative geochemical analysis (for 55 major and trace elements), and the 48 soils samples were also analyzed by x-ray diffraction to establish mineralogy and geochemistry. The results and sample photographs are presented in a geodatabase that accompanies this report. The spectral, mineralogical, and geochemical characterization of these samples and the sites that they represent can be used to validate existing remote-sensing datasets (for example, ASTER) and future hyperspectral studies. Empirical evidence of jarosite (as identified by x-ray diffraction and spectral analysis) corresponding with gold concentrations in excess of 50 parts per billion in soil samples suggests that surficial mapping of jarosite in regional surveys may be useful for targeting areas of prospective gold occurrences in this sampling area.
Citation Information
| Publication Year | 2015 |
|---|---|
| Title | Geospatial compilation of results from field sample collection in support of mineral resource investigations, Western Alaska Range, Alaska, July 2013 |
| DOI | 10.3133/ds943 |
| Authors | Michaela R. Johnson, Garth E. Graham, Bernard E. Hubbard, William Benzel |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Data Series |
| Series Number | 943 |
| Index ID | ds943 |
| Record Source | USGS Publications Warehouse |
| USGS Organization | Crustal Geophysics and Geochemistry Science Center; Eastern Mineral and Environmental Resources Science Center |
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Michaela R Johnson
Associate Program Coordinator
Garth E Graham
Research Geologist
Bernard E. Hubbard
Research Geologist
William Benzel
Physical Scientist
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Michaela R Johnson
Associate Program CoordinatorEmailPhoneGarth E Graham
Research GeologistEmailPhoneBernard E. Hubbard
Research GeologistEmailPhoneWilliam Benzel
Physical ScientistEmailPhone