|Quadrangle map, 1:250,000-scale||PM|
|Quadrangle map, 1:63,360-scale||D-3|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is located on the Alaska Peninsula approximately 1 mile north of Mine Harbor on Herendeen Bay (MacKevett and Holloway, 1977, locality 23; Wilson and others, 1988, locality 23). The map site is at an elevation of 1,450 feet, in the NE1/4 of sec. 10, T. 51 S., R. 74 W., of the Seward Meridian. The location is accurate to within 1,200 feet.|
Geologic descriptionMacKevett and Holloway (1977) reported altered zones at this occurrence, probably related to Tertiary granitic rocks. No exposures of granite rocks were found in the area during U.S. Geological Survey studies in the mid-1980s (Wilson and others, 1988). Instead, these studies indicated extensive silicification and calcification of siltstone and sandstone of the Cretaceous Staniukovich Formation. A rock sample of olive-green siltstone was reported to be anomalous in copper and zinc (Wilson and others, 1987).
|Geologic map unit||(-160.690029596434, 55.7851761923228)|
|Age of mineralization||Cretaceous or younger.|
|Workings or exploration||The U.S. Geological Survey mapped and sampled this occurrence in the mid-1980s. Sample 85AJm 765 was reported to be anomalous in copper and zinc (Wilson and others, 1987).|
|Indication of production||None|
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous mineral deposits in the western part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-F, 38 p., 1 sheet, scale 1:1,000,000.
Wilson, F.H., Harris, E.E., and Bailey, E.A., 1987, Preliminary analytical results and sample locality map for rock samples collected in 1985 and 1986, Port Moller and Stepovak Bay quadrangles, Alaska: U.S. Geological Survey Open-File Report 87-497, 44 p., 1 plate, scale 1:250,000.
|Last report date||1/8/2001|