Rosa Creek Mine, Melozitna Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Rosa Creek Mine | Mine |
| Melozitna Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 18' 16'' North , 151° 17' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
This site is on lands selected by or conveyed to Doyon, Ltd. For further information, contact Doyon, Ltd., at 1 Doyon Place, Suite 300, Fairbanks, Alaska, 99701-2941.
Location: An unnamed placer mine about a half-mile above the mouth of Rosa Creek is marked on the Tanana B-3 map (1956 ed., rev. 1970). This site is at the mine symbol, on the western edge of section 33, T. 6 N., R. 18 W., of the Fairbanks Meridian. The site corresponds to the U.S. Bureau of Land Management site for Rosa Creek (MAS number 0020480033).
Geology: The bedrock across which Rosa Creek flows consists of Paleozoic limestone-dolomite, greenstone, chlorite schist, phyllite, quartz-mica schist, and chert (Chapman and others, 1982). The closest granitic pluton, a Tertiary quartz monzonite stock (radiometric age of 61.8 +/- 2.5 Ma), is about 1 mile to the north (Silberman and others, 1979). The first report of placer gold production from Rosa Creek was in 1934 (Alaska minerals locations database; MAS no. 0020480033), and there was a little placer mining on the creek in about 1950-52 (Cobb, 1981). Production figures from that period have not been published, and it is likely that the production from the Rosa Creek mine was included in the totals for placer mining on Morelock Creek (TN033). Information about more recent mining on Rosa Creek has not been made public. According to North Star Exploration, Inc. (1999 [Report 99-34]), this and other similar placer deposits seem to occur near major faults associated with quartz vein systems and stockwork veins.
Workings: The first report of placer gold production from Rosa Creek was in 1934 (Alaska minerals locations database; MAS no. 0020480033), and there was a little placer mining on the creek in about 1950-52 (Cobb, 1981). Production figures from that period have not been published, and it is likely that the production from the Rosa Creek mine was included in the totals for placer mining on Morelock Creek (TN033). Information about more recent mining on Rosa Creek has not been made public.
Age: Quaternary.
Production: Production from the Rosa Creek mine probably is included in the totals for placer mining on Morelock Creek (TN033).
Commodities (Major) - Au
Development Status: Undetermined.
Deposit Model: Placer Au(?) (Cox and Singer, 1986; model 39a).
Commodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | TN037 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ruby DomainDomain
- Ruby TerraneAccretionary Complex
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