Unnamed Occurrence (ARDF - TK042; north of upper Jay Creek), Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Unnamed Occurrence (ARDF - TK042; north of upper Jay Creek)	- not defined -
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

MAS/MIL number 20760094.
Location: This occurrence is at an elevation of about 3,800 feet, about 3.5 miles west-northwest of the low pass between Jay Creek and Coal Creek It is near the center of sec. 23, T. 32 N., R. 9 E., Seward Meridian. The location is accurate. This is locality B34 of Kurtak and others (1992).
Geology: The rocks in the vicinity of this occurrence are chlorite schist, greenstone, and foliated granite (Kurtak and others, 1992). The greenstone is silicified and iron-stained; the chlorite schist is iron-stained. The occurrence consists of quartz float that contains malachite, fluorite, and epidote (Kurtak and others, 1992). A sample of malachite-bearing quartz contains 161 parts per million copper.
Workings: Only limited surface sampling by U.S. Bureau of Mines (Kurtak and others, 1992).
Alteration: Oxidation of copper mineral. The greenstone is silicified and iron-stained; the chlorite schist is iron-stained.

Commodities (Major) - Cu
Development Status: None
Deposit Model: Porphyry Cu-Au? or Basaltic Cu? (Cox and Singer, 1986; model 20c? or 23?)

Other Databases

Link to USGS - Alaska:	TK042

Other Regions, Features and Areas containing this locality

References