Unnamed (near Little Falls Creek)

Occurrence, Inactive

Commodities and mineralogy

Main commodities Cu
Ore minerals chalcopyrite; pyrite

Geographic location

Quadrangle map, 1:250,000-scale TK
Quadrangle map, 1:63,360-scale B-4
Latitude 62.4722
Longitude -148.6589
Nearby scientific data Find additional scientific data near this location
Location and accuracy This occurrence is at an elevation of about 1,980 feet at the junction of the a creek that is locally called Little Falls Creek and the Talkeetna River, about 6 miles below the mouth of Yellowjacket Creek. The occurrence is near the center of sec. 35, T. 28 N., R. 4 E., Seward Meridian. The location is accurate. This is locality 46 of Csejtey and Miller (1978).

Geologic setting

Geologic description

This occurrence consists of argillite that has a 1-foot-wide gossan that contains a pyritic zone with minor chalcopyrite (Rose, 1967). The argillite is interlayered with a greenstone unit that is estimated to be 11,000 feet thick (Anderson, 1969).
Geologic map unit (-148.661119415781, 62.4717171363618)
Mineral deposit model Basaltic Cu? (Cox and Singer, 1986; model 23?)
Mineral deposit model number 23?
Alteration of deposit Gossan.

Production and reserves

Workings or exploration Work is limited to surface examinations. As of January 1, 2000, there were 3 active state mining claims in section 35 (Northern Associates Inc., written communication, 2001).
Indication of production None

Additional comments

MAS/MILS number 20760015.

References

MRDS Number A012205

References

Reporters R.K. Rogers (U. S. Geological Survey contractor)
Last report date 10/1/2002