|Current site name||Unnamed (east of Brady Glacier)|
|Geographic coordinates:||-136.61097, 58.43972 (WGS84)|
|Relative position||This iron occurrence is at an elevation of about 1350 feet about 0.25 mile south of the southeast edge of an east-pointing arm of Brady Glacier and approximately 3.5 miles north-northwest of the head of the west arm of Dundas Bay. It is in the SW 1/4 SE 1/4 section 35, T. 39 S., R. 53 E., of the Copper River Meridian. (Kimball and others, 1978, report iron-rich skarn lenses in this vicinity from 1300 to 1700 feet elevation.) Location is accurate within 0.1 mile.? The occurrence is the same as number 54 of MacKevett and others (1971), number 53 of Cobb (1971), and number 63 of Kimball and others (1978).|
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|Materials||Type of material|
|USGS model code||18d|
|Deposit model name||Skarn Fe|
|Host or associated||Associated|
|Rock type||Plutonic Rock > Mafic Intrusive Rock > Diorite|
|Host or associated||Host|
|Rock type||Metamorphic Rock > Metasedimentary Rock > Marble|
|Agency||Database name||Acronym||Record ID||Notes|
|USGS||Mineral Resources Data System||MRDS||A013184|
|USGS||Alaska Resource Data File||ARDF||MF072|
MacKevett, E.M., Jr., Brew, D.A., Hawley, C.C., Huff, L.C., and Smith, J.G., 1971, Mineral resources of Glacier Bay National Monument, Alaska: U.S. Geological Survey Professional Paper 632, 90 p., 12 plates, scale 1:250,000.
Brew, D.A., Johnson, B.R., Grybeck, D., Griscom, A., Barnes, D.F., Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources of the Glacier Bay National Monument Wilderness Study Area, Alaska: U.S. Geological Survey Open-File Report 78-494, 670 p.
Kimball, A.L., Still, J.C., and Rataj, J.L., 1978, Mineral resources, in Brew, D. A., and others, Mineral resources of the Glacier Bay National Monument wilderness study area, Alaska: U.S. Geological Survey Open-File Report 78-494, p. C1-C375.
Cobb, E.H., 1972, Metallic mineral resources map of the Mount Fairweather quadrangle, AK: U.S. Geological Survey Miscellaneous Field Study Map MF-436, 1 sheet, scale 1:250,000.
|Subject category||Comment text|
|Deposit||Model Name = Fe skarn (Cox and Singer, 1986; model 18d).|
|Deposit||Other Comments = Although some of the skarn bodies are rich enough to constitute iron ore, they are too small to be exploited. The proximity of this site to the Threesome Mountain (MF070) molybdenum-tungsten area, also affiliated with a Tertiary granite, suggests that the area could contain skarns having more molybdenum and copper.? the site is in Glacier Bay National Park and Preserve.|
|Reporter||14-APR-99||Hawley, C.C.||Hawley Resource Group|