Quadrangle map, 1:250,000-scale | IL |
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Quadrangle map, 1:63,360-scale | D-4 |
Latitude | 59.8346 |
Longitude | -154.2809 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | This prospect is at an elevation of about 1,300 feet on the west flank of Knutson Mountain about two miles north of Knutson Bay (Martin and Katz (1910, 1912). The site is in the NE1/4 sec. 17, T. 4 S., R. 29 W., Seward Meridian, and is probably accurate within 0.5 mile. The site is locality 3 of Detterman and Cobb (1972). |
Geologic descriptionThis prospect consists of two quartz veins that cut quartz monzonite of Cretaceous age (Detterman and Reed, 1980). A 3- to 8-foot-thick quartz vein contains sparse and irregularly distributed gold, along with copper- and probably silver-bearing minerals. A similar but thinner vein was reported within about 0.25 mile, in an unknown direction, from the main vein (Martin and Katz, 1910,1912; Berg and Cobb, 1967). The exact location of this deposit, and its production, grade, and nature of ore are unkown or uncertain. The prospect was sometimes described as a copper deposit (Brooks, 1913). | |
Geologic map unit | (-154.283072311282, 59.8339299110509) |
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Mineral deposit model | Polymetallic vein? (Cox and Singer, 1986; model 22c). |
Mineral deposit model number | 22c? |
Age of mineralization | Cretaceous or younger. |
Workings or exploration | A 40-foot tunnel was driven in 1912 (Brooks, 1913, p. 39). |
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Indication of production | None |
MRDS Number | A013033 |
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References | |
Reporters | C.C. Hawley, Hawley Resource Group, Anchorage, Alaska |
Last report date | 6/3/2003 |