187 results on '"Twelker, Evan"'
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2. DGGS Earth MRI geologic mapping and geophysics program update (presentation): Alaska Miners Association annual convention, Anchorage, Alaska, November 7, 2023
3. U-Pb zircon geochronology of bedrock samples collected in the Eagle and Tanacross quadrangles, eastern Alaska
4. Field station locations and magnetic susceptibility data collected in 2022 for the Mount Harper project, Eagle, Big Delta, and Mount Hayes quadrangles, Alaska
5. Updates on DGGS geologic mapping efforts in eastern Interior Alaska (presentation): Alaska Miners Association annual convention, Anchorage, AK, November 8, 2022
6. DGGS's completed Yukon-Tanana Upland Earth MRI airborne geophysics program, and CY 2023 Mag, Rad, and EM acquisition plans (presentation): Alaska Miners Assocation Annual Meeting, Anchorage, Alaska, November 8-10, 2022
7. Bedrock geologic map of the eastern Moran area, Tanana B-6 and C-6 quadrangles, Alaska
8. Geochemical data from samples collected in 2020 and 2021 for the Western Tanacross project, Tanacross Quadrangle, Alaska
9. Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska
10. Geologic map of the Styx River area, Lime Hills C-1 Quadrangle, Western Alaska Range, Alaska
11. Field station locations and magnetic susceptibility data collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska
12. Alaska's mineral industry 2020
13. 2021 Alaska mining industry update (presentation): Association for Mineral Exploration Roundup, January 31, 2022
14. Field station locations and magnetic susceptibility data collected in 2020 and 2021 for the Western Tanacross project, Tanacross and Eagle quadrangles, Alaska
15. FIELD STATION LOCATIONS AND MAGNETIC SUSCEPTIBILITY DATA FOR THE CHENA--POGO AND MOUNT HARPER PROJECTS, BIG DELTA AND CIRCLE QUADRANGLES, ALASKA, COLLECTED JUNE-SEPTEMBER 2023.
16. Bedrock geologic map of the Ladue River-Mount Fairplay area, Tanacross and Nabesna quadrangles, Alaska
17. Economic geology of the Ladue River-Mount Fairplay area
18. U-Pb detrital zircon geochronology of Cretaceous-Cenozoic sedimentary rocks in the Ladue River-Mount Fairplay area, Alaska
19. Preliminary bedrock geologic map database, northeastern Richardson mining district, Alaska
20. 40AR/39AR GEOCHRONOLOGY DATA FROM THE TANACROSS AND EAGLE QUADRANGLES, ALASKA.
21. Alaska's mineral industry 2019
22. U-Pb zircon data and ages for bedrock samples from the Richardson mining district, Big Delta Quadrangle, Alaska
23. Metamorphism of the Ladue River-Mount Fairplay area
24. Bedrock geologic map of the eastern Denali Highway area, Mount Hayes, Healy, and Talkeetna Mountains quadrangles, Alaska
25. Magmatic and structural framework of PGE and other mineralization in northwestern Wrangellia, central Alaska
26. 40Ar/39Ar data from the Richardson mining district, Big Delta Quadrangle, Alaska
27. 40Ar/39Ar data from the Tanacross D-1 and parts of the D-2, C-1, and C-2 quadrangles, Alaska
28. U-Pb geochronology of igneous and detrital zircon samples from the Tok River area, eastern Alaska Range, and Talkeetna Mountains, Alaska
29. Mineral occurrences in the Tok River area, eastern Alaska Range
30. New bedrock mapping highlights the importance of brittle and ductile structure in the tectonics and metallogeny of the eastern Yukon-Tanana Upland, Alaska (poster); Cordilleran Tectonics Workshop, Anchorage, Alaska, February 22-23, 2020
31. Northeast Tanacross geologic map and map units and descriptions
32. Metamorphic cooling history of the Fortymile River and Lake George assemblages from 40Ar/39Ar geochronology from the northeast Tanacross and southeast Eagle quadrangles, Alaska
33. Observations on the economic geology of the northeast Tanacross map area
34. Field station locations and magnetic susceptibility data collected in 2019 for the Eastern Tanacross Project, Tanacross and Nabesna quadrangles, Alaska
35. Major-oxide and trace-element geochemical data from rocks collected in 2019 for the Eastern Tanacross project, Tanacross and part of Nabesna quadrangles, Alaska
36. Draft (as of 11/5/2019) geologic map of the eastern Tanacross area (poster); Alaska Miners Association Annual Convention, Anchorage, Alaska, November 5-7, 2019
37. U-PB ZIRCON GEOCHRONOLOGY OF BEDROCK SAMPLES COLLECTED IN THE EAGLE AND TANACROSS QUADRANGLES, EASTERN ALASKA.
38. GEOCHEMICAL DATA FROM SAMPLES COLLECTED IN 2022 FOR THE MOUNT HARPER GEOLOGIC MAPPING PROJECT, BIG DELTA, MOUNT HAYES, AND EAGLE QUADRANGLES, ALASKA.
39. Northeastern Tanacross geologic map, Tanacross D-1, D-2, C-1, and C-2 quadrangles, Alaska
40. Major-oxide and trace-element geochemical data from rocks collected in the Richardson mining district, Big Delta Quadrangle, Alaska
41. New geologic investigations of northeast Tanacross (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 4-10, 2018
42. Major-oxide and trace-element geochemical data from rocks collected in 2018 for the Northeast Tanacross project, Tanacross C-1, C-2, D-1, and D-2 quadrangles, Alaska
43. 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
44. 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
45. Major-oxide and trace-element geochemical data from rocks collected in the Tanacross C-1, D-1, and D-2 quadrangles, Alaska in 2017
46. Major-oxide and trace-element geochemical data from rocks collected in the Richardson mining district, Big Delta Quadrangle, Alaska
47. Geologic map of the Tok River area, Tanacross A-5 and A-6 quadrangles, eastern Alaska Range, Alaska
48. Geologic mapping in the Richardson-Uncle Sam area, interior Alaska (presentation): Alaska Miners Association Annual Convention, Anchorage, Alaska, November 7-12, 2017
49. Oligocene-Neogene lithospheric-scale reactivation of Mesozoic terrane accretionary structures in the Alaska Range suture zone, southern Alaska, USA: Reply
50. 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
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