Main commodities | Cu |
---|---|
Ore minerals | chalcopyrite; pyrite |
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 descriptionThis 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. |
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 commentsMAS/MILS number 20760015. |
MRDS Number | A012205 |
---|---|
References | |
Reporters | R.K. Rogers (U. S. Geological Survey contractor) |
Last report date | 10/1/2002 |