Ihly Prospect, Valdez Creek Mining District, Matanuska-Susitna Borough, Alaska, USAi

Regional Level Types
Ihly Prospect	Prospect
Valdez Creek Mining District	Mining District
Matanuska-Susitna Borough	Borough
Alaska	State
USA	Country

MAS/MIL number 20760001.
Location: The Ihly prospect is at an elevation of about 3,400 feet on El Dorado Creek, an informally named, south tributary to Gold Creek. It is 0.9 mile north of the top of hill 3645, about 0.6 mile northeast of the center of sec. 1, T. 30 N., R. 2 W., Seward Meridian. The location is accurate to within 1/4 mile This is locality 31 of Csejtey and Miller (1978).
Geology: The Ihly prospect consists of near-vertical, north-striking felsic dikes that cut Jurassic or Cretaceous flysch; the dikes are cut by mineralized quartz veins (Kurtak and others, 1992). One dike is 5 feet wide and conformable to bedding, which strikes N20E and dips steeply to the northwest. Another dike is 7 feet wide, strikes north and dips steeply east. Fractures in the dikes vary from 0.5 inch to 8 inches wide and are filled with quartz with galena, pyrite, pyrargyrite, and chalcopyrite. Rock samples collected by the State of Alaska contain up to 0.5 ounce of silver per ton and 0.49 percent lead. In 1952, the claim owners reported assays of 0.02 to 0.06 ounce of gold per ton and 0.28 to 1.98 ounces of silver per ton (Kurtak and others, 1992). The mineralization was reportedly discovered in 1950 (Berg and Cobb, 1967). The lode claims were initially staked over the prospect by R. Pankey and J. Callahan. As of January 1, 2000, 2 state prospecting sites covered this prospect (Northern Associates Inc., Written Commun., 2001).
Workings: The mineralization was reportedly discovered in 1950 (Berg and Cobb, 1967). The lode claims were initially staked over the prospect by R. Pankey and J. Callahan. As of January 1, 2000, 2 state prospecting sites covered this prospect (Northern Associates Inc., Written Commun., 2001). Rock samples collected by the State of Alaska (Kurtak and others, 1992). In 1952, the claim owners reported assays of 0.02 to 0.06 ounce of gold per ton and 0.28 to 1.98 ounces of silver per ton.
Alteration: The dike rock is described as altered but the type of alteration is not specified (Berg and Cobb, 1967).

Commodities (Major) - Ag, Au; (Minor) - Pb
Development Status: None
Deposit Model: Polymetallic vein? (Cox and Singer, 1986; model 22c?)

Other Databases

Link to USGS - Alaska:	TK047

Other Regions, Features and Areas containing this locality

References