|Quadrangle map, 1:250,000-scale||DE|
|Quadrangle map, 1:63,360-scale||D-1|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||This prospect consists of one or more claims at an elevation of about 2,200 feet. The area is 1.3 mile north of McLean Arm, probably in the W1/2 of section 30, T. 81 S., R. 90 E. The location is a general one and the site may anywhere within a mile or so of the coordinates.|
Geologic descriptionIn 1958, Utah Construction Company staked one or more claims on a magnetic anomaly identified from an aeromagnetic survey (MacKevett, 1963). Magnetite is associated with hornblende-rich phases of Silurian or Ordovician quartz monzonite or diorite (Gehrels, 1992).
|Geologic map unit||(-132.026962703521, 54.8191562386976)|
|Mineral deposit model||Concentration of magnetite minerals in granitic rocks.|
|Age of mineralization||Magnetite in Silurian or Ordovician granitic rocks.|
|Workings or exploration||None; claims staked on an anomaly determined from an aeromagnetic survey.|
|Indication of production||None|
Gehrels, G. E., 1992, Geologic map of southern Prince of Wales Island, southeastern Alaska: U.S. Geological Survey Miscellaneous Investigations Series Map I-2169, 23 p., 1 sheet, scale 1:63,360.
|Reporters||D.J. Grybeck (Applied Geology)|
|Last report date||9/1/2003|