|Quadrangle map, 1:250,000-scale||JU|
|Quadrangle map, 1:63,360-scale||A-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The Great Bear prospect is on the southeast shore of Taku Harbor, 1/2 mile east of Stockade Point, and 1 mile southeast of Taku Mountain. It is near the northwest corner of section 17, T. 44 S., R. 70 E. of the Copper River Meridian. The location is accurate within 1/4 mile.|
Geologic descriptionThe Great Bear prospect is in black phyllite and felsic phyllite that have been intruded by Cretaceous metagabbro (Redman and others, 1989). The deposit was discovered in 1900 and diamond drilled that fall, but there are no other workings. The deposit was reported to contain gold and nickel, but U.S. Bureau of Mines samples failed to detect any elevated metal values (Redman and others, 1989). The rocks in the general area are Lower Permian through Upper Triassic volcanic rocks, with subordinate clastic and carbonate strata, and their metamorphosed equivalents (Gehrels and Berg, 1994).
|Geologic map unit||(-134.013445330262, 58.0610693649561)|
|Workings or exploration||The deposit was discovered in 1900 and diamond drilled that fall, but there are no other workings.|
|Indication of production||None|
Gehrels, G.E., and Berg, H.C., 1994, Geology of southeastern Alaska, in Plafker, George, and Berg, H. C., eds., The geology of Alaska: Geological Society of America, DNAG, The geology of North America, Vol. G-1, p. 451-467.
Redman, E.C., Maas, K.M., Kurtak, J.M., and Miller, L.D., 1991, Section D: Juneau Gold Belt subarea, in U.S. Bureau of Mines, Mineral investigations in the Juneau Mining District, Alaska, 1984-1988: Volume 2 - Detailed mine, prospect, and mineral occurrence descriptions: U.S. Bureau of Mines Special Publication VOL. 2D, 424 p., 19 sheets.
|Reporters||J.C. Barnett and L.D. Miller (Juneau, Alaska )|
|Last report date||12/15/2001|