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Whole rock, soil, sediment, x-ray diffraction, and electron microprobe analyses of samples from the Orange Hill-Bond Creek area, Nabesna Quadrangle, Alaska

Dates

Publication Date
Start Date
2014
End Date
2016

Citation

Graham, G.E., Johnson, M.R., Kelley, K.D., Kokaly, R.F., and Hoefen, T.M., 2017, Whole rock, soil, sediment, x-ray diffraction, and electron microprobe analyses of samples from the Orange Hill-Bond Creek area, Nabesna Quadrangle, Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/F78051K1.

Summary

This data release includes geochemical, x-ray diffraction mineralogical, and electron probe microanalysis (EPMA) data on rocks, soils, and sediments collected near the Orange Hill and Bond Creek porphyry copper deposits, Nabesna quadrangle, Alaska. Geochemical analyses were completed by a laboratory under contract with the U.S. Geological Survey (USGS). Electron microprobe and x-ray diffraction mineralogical analyses were completed by personnel of the Central Region Minerals Program in Denver, Colorado. The samples were collected and analyzed during 2014 to 2016, selected to help characterize the distribution and composition of mineralized and unmineralized geologic materials in this remote part of the eastern Alaska Range. These results [...]

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Attached Files

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Geochem_XRD_EPMA_Results_OrangeHill_BondCreek_Alaska_2014-2016.xml
Original FGDC Metadata

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18.76 KB
AK_Nabesna_DataDictionary_Sample_XRD_EPMA_ICP.csv 34.15 KB
AK_Nabesna_SampleLocationsandDescriptions.csv 38.95 KB
AK_Nabesna_XRD.csv 2.8 KB
AK_Nabesna_EPMA.csv 153.94 KB
AK_Nabesna_GeochemRockSedSoil.csv 50.7 KB
Shapefile: AKNabesna_SampleLocDesc.zip
AKNabesna_SampleLocDesc.dbf 179.32 KB
AKNabesna_SampleLocDesc.prj 145 Bytes
AKNabesna_SampleLocDesc.sbn 2.18 KB
AKNabesna_SampleLocDesc.sbx 156 Bytes
AKNabesna_SampleLocDesc.shp 6.36 KB
AKNabesna_SampleLocDesc.shx 1.89 KB

Purpose

The geochemical and mineralogical data serve to address a variety of aspects related to the USGS project, 'Hyperspectral Remote Sensing Data and a Multi-proxy Investigation for Characterizing Mineral Resources in Alaska'. Whole rock geochemistry data and stream sediment data provide evidence of mineralized exposures, both known and previously unreported in the area. X-ray diffraction data is used to determine whether the minerals interpreted to be present in imaging spectroscopy data are in fact present on the ground. Electron microprobe data establish the chemistry of mineral phases, in particular in white mica, which can be linked to subtle changes in imaging spectroscopy data.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F78051K1

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