| Deposit ID | 10000295 |
|---|---|
| MRDS ID | A010342 |
| Record type | Site |
| Current site name | Shakan |
| Alternate or previous names | Alaska Treadwell Mining Co. |
| Geographic coordinates: | -133.45964, 56.13445 (WGS84) |
|---|---|
| Elevation | 152 |
| Relative position | SEE LOCATION COMMENTS |
Political divisions (FIPS codes)
Prince of Wales-Hyder(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Petersburg A-5(quadrangle 1:63,360 scale)
Petersburg S(quadrangle 1:100,000 scale)
Petersburg(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Prince of Wales(hydrologic unit)
Southern Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Tongass National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Molybdenum | Primary |
| Copper | Secondary |
| Zinc Critical | Secondary |
| Vanadium Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Molybdenite | Ore |
| Sphalerite | Ore |
| Albite | Gangue |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Host or associated | Associated |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| Host or associated | Host |
|---|---|
| Rock type | Plutonic Rock > Mafic Intrusive Rock > Diorite |
| (1) | -133.45964, 56.13445 |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1917 |
| District name | Ketchikan |
|---|
| Type | In-situ | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Estimate year | 1946 | ||||||||||||||
| Remarks | Entry carried over from Old MRDS or added later (i.e. it did not originate in ARDF) | ||||||||||||||
| |||||||||||||||
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A010342 | |
| USGS | Alaska Resource Data File | ARDF | PEO48 | |
| USGS | Mineral Resources Data System | MRDS | A010343 |
Chapin, Theodore, 1919, Mining developments in the Ketchikan district: U. S. Geological Survey Bulletin 692, p. 85-89.
Hess, F. L., 1924, Molybdenum deposits, a short review: U. S. Geological Survey Bulletin 761, 35 p.
Smith, P. S., 1942, Occurrences of molybdenum minerals in Alaska: U.S. Geological Survey Bulletin 844-A, p. 1-82.
Thorne, R.L., 1943, Shakan molybdenum deposit, Kosciusko Island, southeastern Alaska: U. S. Bureau of Mines War Mineral Report 108, 9 p.
Twenhofel, W. S., Robinson, G. D., and Gault, H. R., 1946, Molybdenite investigations in southeastern Alaska: U. S. Geological Survey Bulletin 947-B, p. 7-38.
Cobb, E. H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Petersburg quadrangle, Alaska: U.S. Geological Survey Open-File Report 78-870.
Cobb, E. H., 1972, Metallic mineral resources map of the Petersburg quadrangle, Alaska: U. S. Geological Survey Miscellaneous Field Studies Map MF-415, 1 sheet, scale 1:250,000.
Grybeck, D. J., Berg, H. C., and Karl, S. M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.
Brew, D. A., Ovenshine, A. T., Karl, S. M., and Hunt, S. J., 1984, Preliminary reconnaissance geologic map of the Petersburg and parts of the Port Alexander and Sumdum 1:250,000 quadrangles, southeastern Alaska: U. S. Geological Survey Open-File Report 84-405, 43 p., 2 sheets, scale 1:250,000.
Coldwell, J. R., 1990, Northwest Canada Mining leads to road proposal: Southeast Alaska Business Journal, December 1990, p. 4.
Maas, K. M., Bittenbender, P. E., and Still, J. C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U. S. Bureau of Mines Open-File
Karl, S. M., Berg, H. C., Grybeck, D., and Abramson, B. S., 1980, Tables describing metalliferous and selected nonmetallic mineral deposits in the Petersburg and eastern Port Alexander quadrangles, Alaska: U. S. Geological Survey Open-File Report 80-793, 14 p., 4 sheets, scale, 1:250,000
Brooks, A. H., 1921, The future of Alaska mining: U. S. Geological Survey Bulletin 714, p. 5-57
Smith, P. S., 1942, Occurrences of molybdenum minerals in Alaska: U.S. Geological Survey Bulletin 926-C, p. 161-210.
USGS BULLETIN 947-0, P.30
| Subject category | Comment text |
|---|---|
| Deposit | THE COUNTRY ROCKS IN THE VICINITY CONSIST OF CRETACEOUS BIOTITE-QUARTZ HORNFELS ALTERED FROM SILURIAN GRAYWACKE TURBIDITE OF THE BAY OF PILLARS FORMATION AND A LARGE CRETACEOUS DIORITE PLUTON THAT INTRUDES THE BEDDED ROCKS (BREW AND OTHERS, 1984). THE SHAKAN MOLYBDENUM DEPOSIT IS AT OR NEAR THE CONTACT BETWEEN THE PLUTON AND THE HORNFELS AND PROBABLY IS GENETICALLY RELATED TO THE EMPLACEMENT OF THIS PLUTON. THE DEPOSIT IS A SULFIDE-BEARING FAULT-BRECCIA ZONE 1-10 FEET THICK ASSOCIATED WITH HORNBLENDE DIORITE PEGMATITE; THE ZONE CONTAINS ABUNDANT PYRRHOTITE, MOLYBDENITE, AND CHALCOPYRITE, WITH MINOR SPHALERITE AND PYRITE, IN QUARTZ-ALBITE GANGUE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-83 | Hirschmann, M. M. (Elliott, R. L.) | U.S. Geological Survey | |
| Updater | 01-NOV-98 | Berg, H. C. (Grybeck, D. J.) | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.