|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||The Wall Street mine is shown near the mouth of Wall Street Creek with a mine symbol on the U.S. Geological Survey topographic map of the Eagle A-2 quadrangle (1956; revised in 1971). The mine is located about 1,000 feet east of the Taylor Highway, in section 6, T. 26 N., R. 19 E., of the Copper River Meridian. The location is accurate.|
The rocks in the vicinity of the Wall Street mine are upper Paleozoic greenschist-facies metasedimentary and metavolcanic rocks and Paleozoic amphibolite-facies paragneiss, amphibolite, schist, and quartzite (Werdon and others, 2001). The Wall Street mine is in a northeast-trending fault at the contact between the greenschist-facies and amphibolite-facies rocks. Three miles to the northeast, the fault bounds the eastern margin of the Napoleon Creek sedimentary basin of Tertiary age; hence, it is likely that motion on the fault is Tertiary or younger.The fault at the Wall Street mine is marked by sub-parallel sets of epithermal-style quartz veins and brecciation scattered over an approximately 150-foot-wide zone. The veins and breccias contain angular clasts of host rocks that have been mostly to completely replaced by clay and quartz. The quartz is generally bright white to translucent pale gray and finely banded to aphanitic and is locally iron-stained. Assays of two select samples of the veins and breccia contain as much as 0.2 ppm silver, 6 ppm arsenic, 200 ppm barium, and 78 ppm zinc, but no gold (Szumigala and others, 2000). No references to this mine are known prior to 2000, and it is uncertain if it was actually mined for gold or if it was only a materials site for building the Taylor Highway.
|Geologic map unit||(-141.757578426668, 64.0589747898965)|
|Age of mineralization||The Wall Street mine is in a northeast-trending fault, at the contact between the greenschist-facies and amphibolite-facies rocks. Three miles to the northeast, the fault bounds the eastern margin of the Napoleon Creek, sedimentary basin of Tertiary age; hence, it is likely that motion on the fault is Tertiary or younger.|
|Alteration of deposit||Clasts in veins and breccias have been partially to completely replaced by clay and quartz.|
|Indication of production||Undetermined|
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|