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Dieter

Prospect in Alaska, United States with commodity Tin
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Alteration
  8. Mineral occurrence model information
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10308723
Record type Site
Current site name Dieter
Alternate or previous names Cape Mountain

Geographic coordinates

Geographic coordinates: -168.00643, 65.57825 (WGS84)
Relative position The prospect adit (now caved) is at 1,700 feet elevation on the north side of the summit to Cape Mountain. Cape Mountain is the upland that makes up Cape Prince of Wales adjacent to Bering Strait on western-most Seward Peninsula. This is locality 1 of Cobb and Sainsbury (1972). Cobb (1975) summarized relevant references under the name 'Cape Mtn.'. It is also known as the Dieter prospect (Mulligan, 1966, p. 33).

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller C-7(quadrangle 1:63,360 scale)

Teller NW(quadrangle 1:100,000 scale)

Teller W OE(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Imuruk Basin(hydrologic unit)

Norton Sound(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore
Quartz Gangue

Alteration

  • Alteration has not been described.

Mineral occurrence model information

Model code 47
USGS model code 15b
Deposit model name Sn veins

Nearby scientific data

(1) Klgr
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The Cape Mountain (Dieter) prospect is a 418 foot-long adit, now caved, driven S 72 W to intersect an area of quartz veining in the Late Cretaceous (78.8 +/- 2.9 my; Hudson and Arth, 1983, p. 769) Cape Mountain biotite granite. The prospect is near the summit of Cape Mountain which is a roof pendant of marble and interlayered schist (Sainsbury, 1972). Steidtmann and Cathcart (1922, p. 99) reported finding cassiterite-bearing quartz vein material on the adit dump but a later effort by Mulligan (1966, p. 33) was unsuccessful in duplicating this result. The area of the prospect is in a part of the Cape Mountain biotite granite (Hudson and Arth, 1983) that has characteristics of a precursor phase rather than a mineralizing phase (Hudson and Reed, 1997, figure 3).
  • Age = Late Cretaceous; cassiterite and related mineralization in this area is interpretated to be linked to the evolution of the Cape Mountain granite which has been determined to be 78.8 +/- 2.9 my old by the K/Ar method (Hudson and Arth, 1983, p. 769). .

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Port Clarence

Comments on the workings information

  • Workings / Exploration = An adit was driven 418 feet S 72 W from a portal at 1700 feet elevation on the north side of the summit to Cape Mountain. Other surface prospect pits and short shafts were dug in the area.

Reference information

Bibliographic references

  • Deposit

    Collier, A.J., 1904, Tin deposits of the York region, Alaska: U.S. Geological Survey Bulletin 229, 61 p.

  • Deposit

    Hess, F.L., 1906, The York tin region, in Brooks, A.H., and others, Report on progress of investigations of mineral resources in Alaska, 1905: U.S. Geological Survey Bulletin 284, p. 145-157.

  • Deposit

    Knopf, Adolph, 1908, Geology of the Seward Peninsula tin deposits, Alaska: U.S. Geological Survey Bulletin 358, 71 p.

  • Deposit

    Steidtmann, Edward, and Cathcart, S. H., 1922, Geology of the York tin deposits, Alaska: U.S. Geological Survey Bulletin 733, 130 p.

  • Deposit

    Heide, H.E., Wright, W.S., and Sanford, R.S., 1946, Exploration of Cape Mountain lode-tin deposits, Seward Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 3978, 16 p.

  • Deposit

    Mulligan, J.J., 1966, Tin-lode investigations, Cape Mountain area, Seward Peninsula, Alaska; with a section on petrography by W. L. Gnagy: U.S. Bureau of Mines Report of Investigations 6737, 43 p.

  • Deposit

    Sainsbury, C.L., 1972, Geologic map of the Teller quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Map I-685, 4 p., 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resource map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Teller quadrangle, Alaska, supplement to Open-File Report 75-587; Part A, Summaries of data to January 1, 1980: U. S. Geological Survey Open-File Report 81-364-A, 25 p.

  • Deposit

    Cobb, E.H., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Teller quadrangle, Alaska, supplement to Open-File Report 75-587; Part B, Lists of references to January 1, 1980: U. S. Geological Survey Open-File Report 81-364-B, 25 p.

  • Deposit

    Hudson, T.L., and Arth, J. G., 1983, Tin-granites of Seward Peninsula, Alaska: Geological Society of America Bulletin, v. 94, p. 768-790.

  • Deposit

    Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.

  • Deposit

    Cobb, E.H., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Teller quadrangle, Alaska; Supplement to Open-File Report 75-587; Part A, Summaries of data to January 1, 1980: U.S. Geological Survey Open-File Report 81-364-A, 25 p.

  • Deposit

    Cobb, E.H., 1981, Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Teller quadrangle, Alaska; Supplement to Open-File Report 75-587; Part B, Lists of references to January 1, 1980: U.S. Geological Survey Open-File Report 81-364-B, 25 p.

  • Deposit

    Harrington, G.L., 1919, Graphite mining in Seward Peninsula: U.S. Geological Survey Bulletin 692-G, p. 363-367.

  • Deposit

    Harrington, G.L., 1919, Tin mining in Seward Peninsula: U.S. Geological Survey Bulletin 692-G, p. 353-361.

  • Deposit

    Hudson, T.L., 1984, Tin systems of Seward Peninsula, Alaska: Anchorage, Anaconda Minerals Company internal report, 51 p. (Report held by Cook Inlet Region Inc., Anchorage, Alaska)

Comments on the references

  • Primary Reference = Steidtmann and Cathcart, 1922; Mulligan, 1966

General comments

Subject category Comment text
Deposit Model Name = Cassiterite-quartz vein in granite (Cox and Singer, 1986; model 15b?)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAY-1998 Travis L. Hudson Applied Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.