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Wrangellia geologic mapping

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Publications


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RI 2020-6 Report Geospatial Data
Twelker, Evan, Lande, L.L., Newberry, R.J., Wypych, Alicja, Sicard, K.R., and Freeman, L.K., 2020, Magmatic and structural framework of PGE and other mineralization in northwestern Wrangellia, central Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2020-6, 72 p. https://doi.org/10.14509/30468
RI 2020-7 Map Geospatial Data
Twelker, Evan, Waldien, T.S., Newberry, R.J., Freeman, L.K., Sicard, K.R., Lande, L.L., Wypych, Alicja, Reioux, D.A., and Bachmann, E.N., 2020, Bedrock geologic map of the eastern Denali Highway area, Mount Hayes, Healy, and Talkeetna Mountains quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2020-7, 1 sheet, scale 1:100,000. https://doi.org/10.14509/30469
RDF 2020-3 Report Geospatial Data
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
RDF 2018-3 Report Geospatial Data
Naibert, T.J., Benowitz, J.A., Wypych, Alicja, Sicard, K.R., and Twelker, Evan, 2018, 40Ar/39Ar data from the Tanacross D-1 and D-2, Big Delta B-4 and B-5, and Mount Hayes A-6 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2018-3, 15 p. https://doi.org/10.14509/30112
RDF 2017-2 Report Geospatial Data
Todd, Erin, Kylander-Clark, Andrew, Wypych, Alicja, Twelker, Evan, and Sicard, K.R., 2017, U-Pb and Lu-Hf isotope, age, and trace-element data from zircons at four sites in the western Alaska Range and Talkeetna Mountains, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2017-2, 7 p. https://doi.org/10.14509/29717
RDF 2017-1 Report Geospatial Data
Benowitz, J.A., Layer, P.W., Wypych, Alicja, and Twelker, Evan, 2017, 40Ar/39Ar data from rocks collected in the 2015 Wrangellia mineral assessment project area, Mount Hayes A-5, Mount Hayes B-6, and Talkeetna Mountains D-2 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2017-1, 9 p. https://doi.org/10.14509/29699
RDF 2016-8 Report Geospatial Data
Twelker, Evan, and O'Sullivan, P.B., 2016, U-Pb zircon age data from meta-igneous rocks in the Clearwater Mountains, Mount Hayes A-6 Quadrangle, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2016-8, 17 p. https://doi.org/10.14509/29663
RDF 2015-16 Report Geospatial Data
Wypych, Alicja, Twelker, Evan, Freeman, L.K., Lande, Lauren, Newberry, R.J., Reioux, D.A., and Sicard, K.R., 2015, Major-oxide and trace-element geochemical data from rocks collected in 2015 in the Wrangellia mineral assessment area, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2015-16, 4 p. https://doi.org/10.14509/29518
PIR 2015-6 Report Map Geospatial Data
Twelker, Evan, Hubbard, T.D., Wypych, Alicja, Sicard, K.R., Newberry, R.J., Reioux, D.A., Freeman, L.K., and Lande, L.L., 2015, Geologic map of the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska: Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report 2015-6, 16 p., 1 sheet, scale 1:50,000. https://doi.org/10.14509/29470
RDF 2015-10 Report Geospatial Data
Benowitz, J.A., Layer, P.W., Wypych, Alicja, and Twelker, Evan, 2015, 40Ar/39Ar data from the Talkeetna Mountains C-4 Quadrangle and adjoining areas, central Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2015-10, 19 p. https://doi.org/10.14509/29454
RDF 2014-22 Report Geospatial Data
Wypych, Alicja, Twelker, Evan, Freeman, L.K., Lande, Lauren, Newberry, R.J., Reioux, D.A., and Sicard, K.R., 2014, Major-oxide and trace-element geochemical data from rocks collected in 2014 in the Wrangellia mineral assessment area, Talkeetna Mountains C-4, C-3, and B-4 quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2014-22, 4 p. https://doi.org/10.14509/29140
RDF 2014-18 Report Geospatial Data
Benowitz, J.A., Layer, P.W., and Twelker, Evan, 2014, 40Ar/39Ar data from rocks collected in 2013 in the Wrangellia mineral assessment area, Gulkana, Healy, Mount Hayes, and Talkeetna Mountains quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2014-18, 10 p. https://doi.org/10.14509/29119
RDF 2014-3 Report Geospatial Data
Twelker, Evan, Bachmann, E.N., Freeman, L.K., Newberry, R.J., Reioux, D.A., Sicard, K.R., Tuzzolino, A.L., Wright, T.C., and Wypych, Alicja, 2014, Major-oxide, minor-oxide, and trace-element geochemical data from rocks and stream sediments in the Wrangellia mineral assessment area, Gulkana, Healy, Mount Hayes, and Talkeetna Mountains quadrangles, Alaska: Alaska Division of Geological & Geophysical Surveys Raw Data File 2014-3, 6 p. https://doi.org/10.14509/27181

Posters and Presentations

Twelker, Evan, 2017 Report
Twelker, Evan, 2017, Geologic mapping in the Talkeetna Mountains and eastern Alaska Range: A story of mineralization and deformation (presentation): Alaska Geological Society Luncheon, February 21, 2017: Alaska Division of Geological & Geophysical Surveys, 49 p. https://doi.org/10.14509/29836
Wypych, Alicja and others, 2015 Map
Wypych, Alicja, Twelker, Evan, Lande, L.L., and Newberry, R.J., 2015, Along-strike geochemical variations in the Late Triassic Nikolai magmatic system, Wrangellia, central Alaska (poster number V31D-3059): American Geophysical Union 2015 Fall Meeting, December 14-18, 2015: Alaska Division of Geological & Geophysical Surveys, 1 sheet. https://doi.org/10.14509/29567
Twelker, Evan and Lande, Lauren, 2015 Report
Twelker, Evan, and Lande, Lauren, 2015, DGGS geological investigations in western Wrangellia (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 1-5, 2015: Alaska Division of Geological & Geophysical Surveys, 45 p. https://doi.org/10.14509/29531
Lande, Lauren and others, 2015 Map
Lande, Lauren, Newberry, R.J., and Twelker, Evan, 2015, A petrological model for emplacement of the ultramafic Ni-Cu-PGE Alpha complex, eastern interior Alaska (poster): Geological Society of America Cordilleran Section - 111th Annual Meeting, Anchorage, Alaska, May 11-13, 2015: Alaska Division of Geological & Geophysical Surveys, 1 sheet. https://doi.org/10.14509/29480
Twelker, Evan and others, 2014 Report
Twelker, Evan, Wypych, Alicja, Sicard, K.R., Newberry, R.J., Freeman, L.K., Reioux, D.A., and Lande, Lauren, 2014, Preliminary results from 2014 geologic mapping in the Talkeetna Mountains, Alaska (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 3-9, 2014: Alaska Division of Geological & Geophysical Surveys, 28 p. https://doi.org/10.14509/29160
Twelker, Evan and others, 2014 Map
Twelker, Evan, Wypych, Alicja, and Newberry, R.J., 2014, New data and insight on the Late Triassic Wrangellia magmatic Ni-Cu-Co-PGE system in the Talkeetna Mountains, central Alaska (poster): Society of Economic Geologists 2014 Conference, September 27-30, 2014: Alaska Division of Geological & Geophysical Surveys, 1 sheet. https://doi.org/10.14509/29139
Twelker, Evan and Burns, L.E., 2014 Report
Twelker, Evan, and Burns, L.E., 2014, New geochemical and geophysical data from the western Wrangellia minerals assessment area (presentation): Alaska Miners Association 24th Biennial Mining Conference, Fairbanks, Alaska April 7-13, 2014: Alaska Division of Geological & Geophysical Surveys, 34 p. https://doi.org/10.14509/27284
Twelker, Evan and others, 2013 Report
Twelker, Evan, Newberry, R.J., Freeman, L.K., Sicard, K.R., Reioux, D.A., and Bachmann, E.N., 2013, DGGS geologic and mineral-resource assessment of the western Wrangellia terrane, central Alaska: Initial progress report (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 4-10, 2013: Alaska Division of Geological & Geophysical Surveys, 25 p. https://doi.org/10.14509/26821

Annual Reports

AR 2014-B Report
DGGS Staff, 2015, Mineral Resources FY15 project descriptions, in DGGS Staff, Alaska Division of Geological & Geophysical Surveys Annual Report 2014: Alaska Division of Geological & Geophysical Surveys Annual Report 2014-B, p. 39-51. https://doi.org/10.14509/29181
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