|Quadrangle map, 1:250,000-scale||SR|
|Quadrangle map, 1:63,360-scale||C-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||The occurrence is located in the SW1/4 section 23, T. 5 N., R. 7 E., of the Seward Meridian. It is situated on or near the west shore of McClure Bay, just east of hill 1692. This is location 112 of Tysdal (1978 [MF-880-A]) and location S-96 of Jansons and others (1984). This location is accurate to within a quarter of a mile.|
Geologic descriptionThere is much confusion in the literature about this occurrence. Tysdal (1978 [MF-880-A]) described it as a small iron-stained breccia zone in sandstone containing 100 ppm zinc. Jansons and others (1984) describe this occurrence as thin vuggy quartz veins about 1 inch wide containing pyrite and chalcopyrite in interbedded shale and graywacke of the Tertiary Orca Group. No workings exist.
|Geologic map unit||(-148.185752673845, 60.5046878117871)|
|Age of mineralization||Tertiary or younger; the occurrence is in Orca Group rocks of Tertiary age.|
|Alteration of deposit||Iron staining.|
|Workings or exploration||Tydsal (1978 [MF-880-A]) reported 100 ppm zinc in iron-stained breccia.|
|Indication of production||None|
Additional commentsTysdal (1978 [MF-880-A]) and Jansons and others (1984) located this occurrence in the same spot, but their descriptions do not match.
Jansons, Uldis, Hoekzema, R.B., Kurtak, J.M., and Fechner, S.A., 1984, Mineral occurrences in the Chugach National Forest, southcentral Alaska: U.S. Bureau of Mines Mineral Land Assessment 5-84, 218 p., 2 sheets, scale 1:250,000.
Tysdal, R.G., 1978, Map showing placer deposits of the Seward and Blying Sound quadrangles, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-880-B, 2 sheets, scale 1:250,000.
|Reporters||Jeff A. Huber (Anchorage)|
|Last report date||2/10/2000|