|Quadrangle map, 1:250,000-scale||DN|
|Quadrangle map, 1:63,360-scale||C-2|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||
The Martha Q mine (Cobb, 1980 [OFR 80-363]) is on the western- most spur of Quigley Hill at an elevation of about 2700 feet. The location is accurate within about 250 feet. The mine is included in location 8 of Cobb (1972 [MF 366]) and in location 6 of MacKevett and Holloway (1977).Martha Q is a patented claim. The location of the claim is shown at a scale of 1:12000 in Hawley and Associates (1978), and the location of the mine shaft is about coincident with their deposit number 129.
The area of the Martha Q mine is underlain by low-grade metamorphic rocks of the Spruce Creek sequence (Bundtzen, 1981). The mine is on the west flank of a northwest-trending body of locally conglomeratic quartz schist (Seraphim, 1962; Hawley and Associates, 1978, fig. 4.1-A(1)-3).The deposit consists of a mineralized quartz vein that strikes NNW, about parallel to the orientation of the quartz schist body. The vein dips steeply NE. It occupies a fault that strikes obliquely to the dominant, northeast- striking veins of the Quigley Hill area. Locally, the vein consists mostly of galena. A selected sample from the mine assayed 0.08 ounce of gold per ton and 284.2 ounces of silver per ton (Davis, 1923, p. 125). Four tons of this high-grade vein material was picked and shipped with ore mined at the Gold Dollar (DN110) in 1921-22.
|Geologic map unit||(, )|
|Mineral deposit model||Polymetallic vein (Cox and Singer, 1986; model 22c).|
|Mineral deposit model number||22c|
|Age of mineralization||The deposit is assumed to be Eocene (see record DN091).|
|Workings or exploration||A shallow shaft and a few trenches were excavated in 1921-22 (Davis, 1923). In 1983, the property was owned by Kantishna Mines Inc., and Maurice Butler (Thornsberry, McKee, and Salisbury, 1984, v. 2, location 29).|
|Indication of production||Yes; small|
|Production notes||Four tons of ore shipped in about 1921-22 contained 1136 ounces of silver (Bundtzen, Smith, and Tosdal, 1976, table 1).|
Additional commentsThe Martha Q mine is in Denali National Park and Preserve.
Bundtzen, T.K., 1981, Geology and mineral deposits of the Kantishna Hills, Mt. McKinley quadrangle, Alaska: M. S. Thesis, University of Alaska, College, Alaska, 238 p.
Bundtzen, T.K., Smith, T.E., and Tosdal, R.M., 1976, Progress report--Geology and mineral deposits of the Kantishna Hills: Alaska Division of Geological and Geophysical Surveys Open-File Report AOF-98, 80 p., 2 sheets, scale 1:63,360.
Cobb, E. H., 1972, Metallic mineral resources map of the Mount McKinley quadrangle, Alaska: U. S. Geological Survey Miscellaneous Field Studies Map MF-366, 1 sheet, scale 1:250,000.
Cobb, E.H., 1980, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Mount McKinley quadrangle, Alaska: U. S. Geological Survey Open-File Report 80-363, 150 p.
Cox, D.P., and Singer, D.A., eds., 1986, Mineral deposit models: U.S. Geological Survey Bulletin 1693, 379 p.
Davis, J. A., 1923, The Kantishna region, Alaska, in Stewart, B. D., Annual Report of the Mine Inspector to the Governor of Alaska, 1922: Alaska Division of Geological and Geophysical Surveys AR-1922.
Hawley, C. C. and Associates, Inc, 1978, Mineral appraisal of lands adjacent to Mt. McKinley National Park, Alaska: U. S. Bureau of Mines Open-File Report 24-78, 275 p. (paged by sections).
MacKevett, E.M., Jr., and Holloway, C.D., 1977, Map showing metalliferous and selected non-metalliferous mineral deposits in the eastern part of southern Alaska: U.S. Geological Survey Open-File Report 77-169-A, 99 p., 1 sheet, scale 1:1,000,000.
Seraphim, R.H., 1962, Kantishna District: Alaska Division of Mines and Minerals Miscellaneous Report 193-3, 11 p., 10 sheets.
Thornsberry, V. V., McKee, C. J., and Salisbury, W. G., eds, 1984, 1983 Mineral Resource Studies: Kantishna Hills and Dunkle Mine Areas, Denali National Park and Preserve, Alaska: U. S. Bureau of Mines Open-File Report 129-84. 3 Volumes: v. 1, Text; v. 2, Appendices; v. 3, Maps. Prepared by Salisbury & Dietz, Inc., Spokane, WA.
|Last report date||4/24/2001|