Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska

Raw Data File 2022-4, Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska, presents whole-rock trace-element and major- and minor-oxide geochemistry for samples collected to support geologic mapping and mineral exploration. During the 2021 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted 1:100,000-scale bedrock geologic mapping of ~2,600 mi2 (~6,900 km2) within the Tanacross and Eagle quadrangles. The field area for the Taylor Mountain project is within a 50-mile radius of Chicken, Alaska. The project area is of current and historic interest for potential mineral resource development, including quartz vein gold (Au) mineralization, placer Au deposits, granite-hosted tin (Sn) mineralization, and intrusion-related copper (Cu)-Au deposits. Prospects in the area include Tweeden, Lilliwig Creek lode, and others. Much of the field area was mapped at 1:250,000 scale by the U.S. Geological Survey (USGS) in the 1960s (Foster, 1970, 1976). This project aims to produce more detailed and modern geologic maps and supporting datasets that will promote mineral resource exploration in eastern interior Alaska. Highlights of this DGGS eastern Taylor Mountain geochemical report include locating and sampling of the Tweeden, Lilliwig Creek lode, Moose Creek, and Fish prospects. Four samples collected at Tweeden returned gold (Au) values over 1 ppm: 21ET247-2.66 ppm Au; 21ET248-1.75 ppm Au; 21ET249-1.34 ppm Au; and 21ET250-1.3 ppm Au. A greenstone sample collected at Kechumstuk Mountain (21MLB195) returned a Cu concentration of 2,960 ppm. The DGGS map area includes a section of pre-Mississippian to Permian metasedimentary and metaigneous rocks as well as Triassic to Paleogene intrusive and volcanic rocks. Major- and trace-element geochemistry was analyzed for metamorphic rocks to distinguish between igneous and sedimentary protoliths, and for igneous rocks to characterize and differentiate Mesozoic and Cenozoic magmatic events in the area. The analytical data tables associated with this report are available through the Alaska Geochemistry database (https://maps.dggs.alaska.gov/geochem). For a direct link to this data release, see http://doi.org/10.14509/30843.

Data and Resources

Field Value
access_constraints ["Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.", "Access Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below)."]
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contact-email dggspubs@alaska.gov
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dataset-reference-date [{"type": "publication", "value": "2022-01-01"}]
frequency-of-update notPlanned
licence ["The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product."]
metadata-date 2022-03-30
metadata-language eng; USA
metadata_type geospatial
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Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
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  • kechumstuk-mountain
  • lab-methods
  • logging-cabin-creek
  • major-oxides
  • metals
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  • mineral-deposit
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  • moose-creek
  • mount-warbelow
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  • trace-elements
  • trace-geochemical
  • trace-metals
  • united-states
  • wilson-creek
isopen False
metadata_created 2025-11-21T01:44:30.820052
metadata_modified 2025-11-21T01:44:30.820056
notes Raw Data File 2022-4, Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska, presents whole-rock trace-element and major- and minor-oxide geochemistry for samples collected to support geologic mapping and mineral exploration. During the 2021 field season, geologists from the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted 1:100,000-scale bedrock geologic mapping of ~2,600 mi2 (~6,900 km2) within the Tanacross and Eagle quadrangles. The field area for the Taylor Mountain project is within a 50-mile radius of Chicken, Alaska. The project area is of current and historic interest for potential mineral resource development, including quartz vein gold (Au) mineralization, placer Au deposits, granite-hosted tin (Sn) mineralization, and intrusion-related copper (Cu)-Au deposits. Prospects in the area include Tweeden, Lilliwig Creek lode, and others. Much of the field area was mapped at 1:250,000 scale by the U.S. Geological Survey (USGS) in the 1960s (Foster, 1970, 1976). This project aims to produce more detailed and modern geologic maps and supporting datasets that will promote mineral resource exploration in eastern interior Alaska. Highlights of this DGGS eastern Taylor Mountain geochemical report include locating and sampling of the Tweeden, Lilliwig Creek lode, Moose Creek, and Fish prospects. Four samples collected at Tweeden returned gold (Au) values over 1 ppm: 21ET247-2.66 ppm Au; 21ET248-1.75 ppm Au; 21ET249-1.34 ppm Au; and 21ET250-1.3 ppm Au. A greenstone sample collected at Kechumstuk Mountain (21MLB195) returned a Cu concentration of 2,960 ppm. The DGGS map area includes a section of pre-Mississippian to Permian metasedimentary and metaigneous rocks as well as Triassic to Paleogene intrusive and volcanic rocks. Major- and trace-element geochemistry was analyzed for metamorphic rocks to distinguish between igneous and sedimentary protoliths, and for igneous rocks to characterize and differentiate Mesozoic and Cenozoic magmatic events in the area. The analytical data tables associated with this report are available through the Alaska Geochemistry database (https://maps.dggs.alaska.gov/geochem). For a direct link to this data release, see http://doi.org/10.14509/30843.
num_resources 3
num_tags 71
title Geochemical data from samples collected in 2021 for the Taylor Mountain project, Tanacross and Eagle quadrangles, Alaska