|Quadrangle map, 1:250,000-scale||EA|
|Quadrangle map, 1:63,360-scale||A-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This unnamed occurrence is located on a ridgeline about 2 miles east of the mouth of Wall Street Creek, in section 4, T. 26 N., R. 19 E., of the Copper River Meridian. The location is accurate.|
Geologic descriptionThe rocks in the vicinity of this occurrence are Paleozoic amphibolite-facies paragneiss, quartzite, schist, and amphibolite and Mississippian to Devonian augen gneiss (Werdon and others, 2001). These units are cut by a prominent, northeast-trending, high-angle fault that can be seen as a topographic linear in air photos. An assay of a calcite-veined breccia with igneous-textured clasts (probably augen gneiss) from this fault contains 75 ppb gold (Szumigala and others, 2000).
|Geologic map unit||(-141.698578422329, 64.0586757579682)|
|Age of mineralization||The auriferous breccia cuts Paleozoic rocks.|
|Indication of production||None|
Szumigala, D.J., Newberry, R.J., Werdon, M.B., Finseth, B.A., Pinney, D.S., and Flynn, R.L., 2000, Major-oxide, minor-oxide, trace-element, and geochemical data from rocks collected in a portion of the Fortymile mining district, Alaska, in 1999: Alaska Division of Geological and Geophysical Surveys Raw-Data File 2000-1, 24 p., 2 sheets, scale 1:63,360.
|Last report date||5/1/2002|