Unnamed (west of lower California Creek)

Occurrence, Undetermined

Commodities and mineralogy

Main commodities Ag; Pb; Zn
Other commodities As; Au; W

Geographic location

Quadrangle map, 1:250,000-scale NL
Quadrangle map, 1:63,360-scale A-4
Latitude 64
Longitude -157.8
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence, informally called 'Dee's Warm Springs,' is near the warm springs on the southern end of locally-named 'Camp Ridge,' a relatively level, north-south hill west of lower California Creek. For this record, the site is plotted 0.4 mile due north of the center of sec. 14, T. 17 S., R. 5 E., Kateel River Meridian. The location is accurate within 2 miles.

Geologic setting

Geologic description

This occurrence is at a warm springs and consists of ferricrete, iron-stained travertine, and graphitic quartzite float (Flanigan, 1998). The temperature of the springs is about 30 degrees C. Samples of silt from the spring are anomalous in lead, zinc, silver, gold, and arsenic. Iron-stained rocks and gossan float nearby contain up to 725 ppm lead, 550 ppm zinc, 1.8 ppm silver, 45 ppb gold, and 45 ppm tungsten.
Geologic map unit (-157.802433112026, 63.9993477040422)
Mineral deposit model Pb and Zn at a warm springs probably related to a nearby pluton
Age of mineralization Flanigan (1998) interprets this occurrence to be related to magmatic fluids from the Khotol pluton, based on its proximity to the pluton and its low molybdenum content . K-Ar and Ar/Ar dates for the Khotol pluton are approximately 110 Ma (Flanigan, 1998).

Production and reserves

Workings or exploration This occurrence was discovered by Anaconda Minerals Company in 1980 (Flanigan, 1998).
Indication of production None


MRDS Number 10307899


Flanigan, B., 1998, Genesis and mineralization of ore deposits in the Illinois Creek region, west central Alaska: University of Alaska, Fairbanks, M.Sc. thesis, 125 p., 2 plates.
Reporters C.E. Cameron (Northern Associates Inc.)
Last report date 8/7/2001