|Quadrangle map, 1:250,000-scale||VA|
|Quadrangle map, 1:63,360-scale||A-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect is on the north side of the valley of an unnamed south tributary to the lower Lowe River. The mouth of this tributary is 3.3 miles upstream from Canyon Slough. The prospect is at an elevation of about 1,500 feet in the center of the S1/2 section 10, T. 10 S., R. 5 W., of the Copper River Meridian. This prospect is probably located to within one-half mile. It is locality 41 of Cobb and Matson (1972) and locality 33A of Winkler and others (1981 [OFR 80-892-B]).|
Geologic descriptionStratiform lenses and disseminations of sulfide minerals occur in mafic metavolcanic rocks and metasedimentary rocks of the Valdez Group; the sulfide minerals include chalcopyrite, pyrite, pyrrhotite, and sphalerite (Winkler, Miller, and others, 1981). Early work on this prospect described it as a large but low-grade deposit with chalcopyrite, some malachite, and a little gold. It was explored by about 150 feet of open cuts and a 100-foot-long adit (Johnson, 1916). The metavolcanic rocks probably represent ocean-floor basalts that were accreted with the flysch of the Valdez Group (Winkler and others, 1981 [OFR 80-892-A]).
|Geologic map unit||(-146.099816468707, 61.012081724732)|
|Mineral deposit model||Cyprus massive sulfide (Cox and Singer, 1986; model 24a)|
|Mineral deposit model number||24a|
|Age of mineralization||Late Cretaceous; the host metavolcanic rocks probably represent ocean-floor basalts that were accreted along the enclosing flysch of the Valdez Group (Winkler and others, 1981 [OFR 80-892-A]).|
|Alteration of deposit||Oxidation; the deposits are iron-stained (Winkler and others, 1981 [OFR 80-892-B]).|
|Workings or exploration||Early work on this prospect included about 150 feet of open cuts and a 100-foot-long adit (Johnson, 1916).|
|Indication of production||None|
Cobb, E.H., and Matson, N.A., Jr., 1972, Metallic mineral resources map of the Valdez quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-438, 1 sheet, scale 1:250,000.
Johnson, B.L., 1916, Mining on Prince William Sound: U.S. Geological Survey Bulletin 642-D, p. 137-145.
Winkler, G.R., Miller, R.J., MacKevett, E.M., Jr., and Holloway, C.D., 1981, Map and summary table describing mineral deposits in the Valdez quadrangle, southern Alaska: U.S. Geological Survey Open-File Report 80-892-B, 2 sheets, scale l:250,000.
|Reporters||Travis L. Hudson|
|Last report date||12/14/2001|