|Quadrangle map, 1:250,000-scale||CV|
|Quadrangle map, 1:63,360-scale||C-4|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This occurrence is at an elevation of about 2200 feet about a mile west of lower Ibeck Creek and 1/4 mile north of peak 2522. It is in the NE1/4 sec. 29, T. 14 S., R. 1 W., of the Copper River Meridian. Location accurate to within 1000 ft. Location corresponds to site C-18 in Jansons and others (1984).|
Geologic descriptionThe occurrence is hosted in a unit of the Tertiary Orca Group consisting mostly of tabular or lenticular bodies of mafic volcanic rocks, including pillowed or massive flows, breccia and dikes (Nelson and others, 1985). Rocks in the area are iron-stained and contain disseminated pyrite. One grab sample contained 0.25% Zn (Jansons and others, 1984).
|Geologic map unit||(-145.438982856482, 60.6294630749467)|
|Mineral deposit model||Possibly Cyprus massive sulfide (Cox and Singer, 1986; model 24a)|
|Mineral deposit model number||24a ?|
|Age of mineralization||Probably Tertiary based on the age of the host rocks.|
|Alteration of deposit||Oxidation of sulfides.|
|Workings or exploration||
Site examined during U.S. Bureau of Mines mineral evaluation of the Chugach National Forest (Jansons and others, 1984).One grab sample contained 0.25% Zn (Jansons and others, 1984).
|Indication of production||None|
Additional commentsChugach Alaska Corporation, Anchorage, Alaska has control of these lands.
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.
|Reporters||S.W. Nelson, Anchorage, AK|
|Last report date||6/10/2000|