1. Mineral Resources
  2. Online Spatial Data
  3. Alaska Resource Data File (ARDF)

Unnamed

Occurrence, Inactive

Map
KML
XML
GeoJSON

Commodities and mineralogy

Main commodities Ag; As; Pb
Other commodities Cu; Sb; Sn; Zn
Gangue minerals tourmaline

Geographic location

Quadrangle map, 1:250,000-scale MD
Quadrangle map, 1:63,360-scale B-4
Latitude 63.46
Longitude -154.55
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is located on southern flanks of Mystery Mountains at approximately 1,500 feet (457 m) elevation in Section 35, T. 23 S., R. 22 E., of the Kateel River Meridian. Location is imprecise and judged to be within a two mile (3.2 km) radius.

Geologic setting

Geologic description

Occurrence consists of tourmaline-bearing altered dacite porphyry with iron oxide spots after pyrite. Anomalous silver, lead, and arsenic values occur in grab samples; elevated levels of antimony, copper, zinc, and tin also occur. Limited assay data is provided in King and others (1980) and Patton and Moll (1983).
Geologic map unit (-154.552337228644, 63.4594021022105)
Mineral deposit model Polymetallic vein (Cox and Singer, 1986; model 22c).
Mineral deposit model number 22c
Alteration of deposit Tourmaline.

Production and reserves

Workings or exploration Not indicated; see Patton and Moll (1983) and King and others (1980) for analytical data.
Indication of production None
Reserve estimates None.

Additional comments

The unamed (MD081) occurrence is on land selected or conveyed to Doyon Ltd. For further information, contact Doyon Ltd. at 210 1st Ave., Fairbanks, Alaska, 99701.

References

References

King, H.D., Risoli, D.A., Cooley, E.F., O'Leary, R.M., Speckman, W.A., Speisman, D.L., and Galland, D.W., 1980, Final results and statistical summary of analyses of geochemical samples from the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811F, 134 pages.
Patton, W.W., Jr., and Moll, E.J., 1983, Mineral resource assessment map of the Medfra quadrangle, Alaska: U.S. Geological Survey Open-File Report 80-811-G, 3 sheets, scale 1:250,000.
Reporters Bundtzen, T.K. (Pacific Rim Geological Consulting)
Last report date 6/7/1998