Cordova Copper Co.; Fleming Spit Prospect, Copper River Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Cordova Copper Co.; Fleming Spit Prospect	Prospect
Copper River Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

No production, although a sample of native copper from this site was displayed in 1909 at the Alaska-Yukon Exposition (Grant, 1910). Prospect site could not be located in 1986 during industry exploration (B. Ellis, personal commun., 2000). Site is on State of Alaska land.
Location: This prospect is at the 500 ft. elevation in Fleming Creek about 2 miles north-northeast of the city of Cordova. It is in the E1/2 sec. 15, T. 15 S., R. 3 W., of the Copper River Meridian. Location is accurate to within 500 ft. This site is shown as location C-34 by Jansons and others (1984) and loc. 23 by Cobb (1972: MF-392; 1979: OF 79-973).
Geology: This prospect consists of base-and precious-metal deposits in Tertary Orca Group volcanic and sedimentary rocks (Nelson and others, 1985). The volcanic rocks in the prospect area are reported to be amygdaloidal basalts (Grant, 1910). The deposits comprise impregnations and replacements of sulfides, oxides, and native metals in country rock, scattered veins of quartz or sulfides, and irregular masses of sulfide.
Workings: 12 adits examined in 1980 (Jansons and other, 1984). The main activity took place in 1905-1909 and 1917 (Cobb, 1979: OF 79-973).
Age: Tertiary based on the age of the host rocks (Nelson and others, 1985).
Alteration: Surface alteration & extensive oxidation at depth (Grant, 1910).
Reserves: Inferred reserves of 17,600 tons @ 0.64% Cu are reported by Jansons and others (1984).

Commodities (Major) - Cu; (Minor) - Au
Development Status: No
Deposit Model: Cyprus massive sulfide (Cox and Singer, 1986; model 24a). See also Crowe and ot

Other Databases

Link to USGS - Alaska:	CV047

Other Regions, Features and Areas containing this locality

References