Tok River

Project Details

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• Project ID:

  1448

• Nickname/Abbreviation:

  Tok River

• Parent Project:

  Mineral Resources Section projects

• Status:

  Complete

• Description:

  The Tok River project aimed to improve the mapping and geologic understanding of the eastern portion of the Alaska Range and to evaluate the mineral resource potential of the area. Tanacross A-5 and A-6 quadrangles were mapped at 1:50,000 scale, and lie east of the Delta VMS belt, and west of the Peak skarn (Cu-Au) of the Tetlin project. Surrounding structurally controlled gold occurrences include the Stibnite Creek quartz-stibnite-pyrite-arsenopyrite veins, and the VABM White quartz veins and stockwork veining. The map area contains porphyry (Cu-Au) mineralization at the Noah (also known as Hona) prospect, and the sulfide-rich 'Eagle trend' prospects of possible volcanogenic or plutonic origin. 2016 STATEMAP grant no. G16AC00182, and USGS Mineral Resources Assessment Grant no. G16AS00003. Find field photos taken during this project

• Project Date(s):

  2016 - 2018

• Primary Contact:

  Twelker, Evan

• DGGS section:

  Mineral Resources

• Project Participants:

  Lawrence K. Freeman, Karri R. Sicard, Evan Twelker, David A. Reioux, Alicja Wypych, Lauren Lande, Alexandra C. Busk

• Stations/Samples:

  View list

Publications

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RI 2020-8

Twelker, Evan, Newberry, R.J., Wypych, Alicja, Sicard, K.R., and Naibert, T.J., 2020, Mineral occurrences in the Tok River area, eastern Alaska Range: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2020-8, 49 p. https://doi.org/10.14509/30471

RDF 2020-3

Holm-Denoma, C.S., Sicard, K.R., and Twelker, Evan, 2020, U-Pb geochronology of igneous and detrital zircon samples from the Tok River area, eastern Alaska Range, and Talkeetna Mountains, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2020-3, 20 p. https://doi.org/10.14509/30439

PIR 2017-3

Sicard, K.R., Naibert, T.J., Hubbard, T.D., Twelker, Evan, Wypych, Alicja, Werdon, M.B., Willingham, A.L., Gillis, R.J., Lande, L.L., and Newberry, R.J., 2017, Geologic map of the Tok River area, Tanacross A-5 and A-6 quadrangles, eastern Alaska Range, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2017-3, 15 p., 1 sheet, scale 1:63,360. https://doi.org/10.14509/29722

RDF 2017-5

Benowitz, J.A., Sicard, K.R., Naibert, T.J., and Layer, P.W., 2017, 40Ar/39Ar data from the Tok River area, Tanacross A-5 and A-6 quadrangles and adjoining areas, eastern Alaska Range: Alaska Division of Geological & Geophysical Surveys Raw Data File 2017-5, 26 p. https://doi.org/10.14509/29727

RDF 2016-10

Naibert, T.J., Werdon, M.B., Lande, Lauren, and Wypych, Alicja, 2016, Trace-element geochemical data from stream sediments collected in the Tok River area, Tanacross A-5 and A-6 quadrangles, Alaska in 2016: Alaska Division of Geological & Geophysical Surveys Raw Data File 2016-10, 3 p. https://doi.org/10.14509/29688

RDF 2016-9

Wypych, Alicja, Sicard, K.R., Gillis, R.J., Lande, L.L., Naibert, T.J., Newberry, R.J., Twelker, Evan, Werdon, M.B., and Willingham, A.L., 2016, Major-oxide and trace-element geochemical data from rocks collected in the Tok River area, Tanacross A-5 and A-6 quadrangles, Alaska in 2016: Alaska Division of Geological & Geophysical Surveys Raw Data File 2016-9, 3 p. https://doi.org/10.14509/29685

PIR 2016-2

Twelker, Evan, Freeman, L.K., Sicard, K.R., and Busk, A.C., 2016, Preliminary report on mineral occurrences in the Tok River area, Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2016-2, 7 p. https://doi.org/10.14509/29605

RDF 2015-15 v. 1.1

Wypych, Alicja, Sicard, K.R., Twelker, Evan, Freeman, L.K., Lande, Lauren, and Reioux, D.A., 2015, Major-oxide and trace-element geochemical data from rocks collected in 2015 in the Tok area, Tanacross A-5, A-6, and parts of adjacent quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2015-15 v. 1.1, 3 p. https://doi.org/10.14509/29517

Posters and Presentations

Twelker, Evan and others, 2018

Twelker, Evan, Newberry, R.J., Wypych, Alicja, Sicard, K.R., and Naibert, T.J., 2018, DGGS investigations of gold prospects in the Tok River area, eastern Alaska (presentation): Alaska Miners Association 26th Biennial Convention, Fairbanks, Alaska March 26-31, 2018: Alaska Division of Geological & Geophysical Surveys, 31 p. https://doi.org/10.14509/30030