Staked as Com cl (Y38245) in September 1969 by Cominco, which conducted soil sampling in 1970. The Roy and Tye cl (Y50930) were staked immediately to the southwest in March 1970 by Eagle Bay ML. Re-staked in December 1974 as Roc cl (Y91852) by Klotassin JV (Newconex Can EL, Marietta Res Int L, and Molybdenum Corp of America), which conducted mapping, geochemical sampling, a ground magnetic survey and limited bulldozer trenching in 1975; and a ground magnetic survey in 1976.
Archer, Cathro & Associates Ltd. performed bedrock mapping, as well as soil and rock geochemistry in 1985.
Regional & Property Geology
The occurrence is partly underlain by Yukon-Tanana Terrane (YTT). The rocks of the YTT in this region consist of Early Mississippian metamorphic rocks separated into meta-sedimentary and meta-igneous suites. The meta-sedimentary suite consists of micaceous quartz-feldspar gneiss, schist and quartzite. The meta-igneous package is comprised of biotite-hornblende feldspar gneiss and coarse-grained granodiorite orthogneiss with lesser amphibolite.
The YTT basement rocks are cut by numerous plutonic and volcanic events from the Mesozoic (Allan & Friend, 2018; AR 090087), including:
1. Early Jurassic monzonite to syenite plutonic suites;
2. Mid-Cretaceous Mount Nansen Suite andesite and rhyolite tuff-breccia;
3. Mid-Cretaceous Whitehorse granodiorite;
4. Late Cretaceous Carmacks rhyodacites; and,
5. Quartz feldspar and feldspar hornblende porphyry dykes and plugs.
Mineralization & Results
Small copper and molybdenum soil anomalies were outlined along the southwest side of the valley floor on the Com claims. Mapping of the rock chips collected during soil sampling delineated several small porphyry stocks and related dyke swarms, with a trace of malachite, that appear to be the source of the anomaly. Minor banded and disseminated fluorite was found in quartz float along Big Creek and one specimen was found to contain abundant scheelite.
|1985||Geology: Bedrock Mapping|
|1976||Ground Geophysics: Magnetics|
|1975||Geology: Bedrock Mapping|
|1975||Ground Geophysics: Magnetics|
Regional Geology - Terrane
Regional Geology - Bedrock
Assessment Reports that overlap occurrence
|Report Number||Year||Title||Worktypes||Holes Drilled||Meters Drilled|
|094745||2006||2006 Geophysical Assessment Report on the Freegold Mountain Property||Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics|
|094256||2001||Diamond Drilling, Excavator Trenching, and Geophysical Surveys on the Golden Revenue Property||Diamond Drilling, Drill Core Geochemistry, IP Ground Geophysics, Prospecting Other, Mechanical Trenching||6||1202|
|094102||1999||Geological Mapping, Prospecting, Soil Geochemistry, Hand Trenching, and Ground Magnetic Surveys on the Golden Revenue Property||Soil Geochemistry, Detailed Bedrock Mapping Geology, Magnetics Ground Geophysics, Prospecting Other, Hand Trenching|
|091804||1985||Geological and Geochemical Report on the NUCLEUS Property||Rock Geochemistry, Soil Geochemistry, Bedrock Mapping Geology, Property Evaluation Other, Prospecting Other, Mechanical Trenching|
|090167||1976||Geological Mapping, Geochemical and Magnetometer Surveys May-August, 1976 Skunk 1-75 Mineral Claims||Rock Geochemistry, Soil Geochemistry, Regional Bedrock Mapping Geology, Magnetics Ground Geophysics, Line Cutting Other|
|090087||1975||Geological Mapping, Geochemical and Magnetometer Surveys - Big Creek West, Big Creek East, Bow Creek Properties||Soil Geochemistry, Regional Bedrock Mapping Geology, Magnetics Ground Geophysics, Line Cutting Other, Prospecting Other, Surveying Other|
|060200||1970||Report on the Geophysical and Geochemical Surveys Ram and Bow Claim Groups||Electromagnetic Airborne Geophysics, Magnetic Airborne Geophysics, Rock Geochemistry, Soil Geochemistry|
|060606||1969||Geochemical Report on the Com Group East and Com Group West Mineral Claims||Soil Geochemistry|
|ARMC016627||Land and disposition and mineral deposits chart - Freegold - Big Creek area||Geoscience Map (General)|
|ARMC012940||Location plan of Com 1 to 101 mineral claims - Job 379||Geoscience Map (General)|
|ARMC016626||Geology and mineralization chart - Freegold - Big Creek area||Geoscience Map (Geological - Bedrock)|
|060606||Geochemical Report on the Com Group East and Com Group West Mineral Claims||Assessment Report|
|090167||Geological Mapping, Geochemical and Magnetometer Surveys May-August, 1976 Skunk 1-75 Mineral Claims||Assessment Report|
|091804||Geological and Geochemical Report on the NUCLEUS Property||Assessment Report|
|090087||Geological Mapping, Geochemical and Magnetometer Surveys - Big Creek West, Big Creek East, Bow Creek Properties||Assessment Report|
|YEG2017_4||New contributions to the bedrock geology of the Mount Freegold district, Dawson Range, Yukon (NTS 115I/2, 6 and 7)||Annual Report Paper|
|2018-2||Bedrock geological map of the Mount Freegold district, Dawson Range||Open File (Geological - Bedrock)|