Quadrangle map, 1:250,000-scale | MH |
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Quadrangle map, 1:63,360-scale | B-6 |
Latitude | 63.2508 |
Longitude | -146.8292 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | The Fat Chance occurrence is located 2.1 miles west of the West Fork Maclaren River within the Stellar Project; 0.2 mile south of the center of section 20, T. 20 S., R. 5 E., of the Fairbanks Meridian. This location is accurate to within about 100 feet. |
Geologic descriptionFat Chance is a molybdenum occurrence, in the Stellar Project area, related to a feldspar porphyry intruding quartz monzonite (P. St. George, Chief Exploration Officer, Millrock Resources Inc., oral communication, 2014). The Stellar Project area straddles the Yukon-Tanana and Wrangellia terranes (Millrock Resources Inc., 2014). From 2011 to 2013, Millrock Resources Inc. conducted soil and rock sampling. In 2013, airborne electromagnetic geophysical survey and spectrometry were flown (Philip. St. George, Chief Exploration Officer, Millrock Resources Inc., oral communication, 2014). | |
Geologic map unit | (, ) |
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Mineral deposit model | Porphyry molybdenum? (Cox and Singer, 1986; model 21b). |
Mineral deposit model number | 21b? |
Age of mineralization | Triassic or younger based on age of host rock (Nokleberg and others, 1991)? |
Alteration of deposit | Phyllic (Philip. St. George, Chief Exploration Officer, Millrock Resources Inc., oral communication, 2014). |
Workings or exploration | From 2011 to 2013, Millrock Resources Inc. conducted soil and rock sampling. In 2013, airborne electromagnetic geophysical survey and spectrometry were flown (Philip. St. George, Chief Exploration Officer, Millrock Resources Inc., oral communication, 2014). Twenty-two soils and five rocks were collected on the occurrence. Soils averaged 47 ppb Au, 175 ppm Cu and 25 ppm Mo with values up to 317 ppb Au, 586 ppm Cu and 275 ppm Mo. Rocks averaged 21 ppb Au, 302 ppm Cu and 15 ppm Mo with values up to 56 ppb Au, 659 ppm Cu and 44 ppm Mo. |
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Indication of production | None |
ReferencesMillrock Resources Inc., 2014, Stellar: http://www.millrockresources.com/projects/stellar/ (as of April 29, 2014).
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Reporters | V.C. Zinno (Alaska Earth Sciences, Inc.) |
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Last report date | 3/15/2016 |