Morning Star; Consolidated Prospect, Prince William Sound Mining District, Valdez-Cordova Census Area, Alaska, USAi

Regional Level Types
Morning Star; Consolidated Prospect	Prospect
Prince William Sound Mining District	Mining District
Valdez-Cordova Census Area	Census Area
Alaska	State
USA	Country

Location: The prospect is located on the divide above Avery River. It is in the SW1/4 section 31, T. 11 N., R. 9 E., of the Seward Meridian. This is location 92 of Condon and Cass (1958), location 83 of Cobb and Richter (1972), location 95 of MacKevett and Holloway (1977), location 149 of Cobb and Tysdal (1980), and location S-142 of Jansons and others (1984). This location is accurate to within a quarter of a mile.
Geology: The prospect is hosted in graywacke of the Valdez Group of Late Cretaceous age (Cobb and Tysdal, 1980). The workings consist of two 10-foot shafts. One shaft (Morning Star) is driven on a quartz vein as much as 4 feet wide, and the other (Consolidated) is on a quartz vein as much as 2 feet wide. The Morning Star vein can be traced along strike for as many as three claim lengths and contains arsenopyrite, galena, gold, pyrite, and sphalerite (Johnson, 1914 [B 592-G, p. 220]). In 1980 the U.S. Bureau of Mines collected a select grab sample that contained 0.36 ounce of gold per ton and 0.69 ounce of silver per ton (Jansons and others, 1984).
Workings: The workings on the prospect consist of two 10-foot shafts. One shaft (Morning star) is driven on a quartz vein as much as 4 feet wide, and the other (Consolidated) is on a quartz vein as much as 2 feet wide. The Morning Star vein can be traced along strike for as many as three claim lengths and contains arsenopyrite, galena, gold, pyrite, and sphalerite (Johnson, 1914 [B 592-G, p. 220]). In 1980 the U.S. Bureau of Mines collected a select grab sample that contained 0.36 ounce of gold per ton and 0.69 ounce of silver per ton (Jansons and others, 1984).
Age: Cretaceous or younger; the veins cut rocks of the Valdez Group of Late Cretaceous age.

Commodities (Major) - Au; (Minor) - Ag, Pb, Zn
Deposit Model: Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a)

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Link to USGS - Alaska:	SR099

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References