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  3. Mineral Resource Data System (MRDS)

Tin Creek (in Ear Mountain area)

Occurrence 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. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. General comments
  14. Reporter information

Geologic information

Identification information

Deposit ID 10308423
Record type Site
Current site name Tin Creek (in Ear Mountain area)

Geographic coordinates

Geographic coordinates: -166.19946, 65.9703 (WGS84)
Relative position Tin Creek, within the Bering Land Bridge National Preserve, drains the lower elevations of the north flank of Ear Mountain. Ear Mountain is an isolated upland reaching a maximum elevation of 2,329 feet in the north-central Teller D-3 quadrangle. This locality is at 525 feet elevation in the headwaters of Tin Creek, 0.9 miles northwest of the Ear Mountain landing strip. This is locality 53 of Cobb and Sainsbury (1972) and Cobb (1975) summarized relevant references under the name 'Tin Cr., trib. Shishmaref Inlet'.

Site location context

Political divisions (FIPS codes)

Nome(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Teller D-3(quadrangle 1:63,360 scale)

Teller NE(quadrangle 1:100,000 scale)

Teller C(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Shishmaref(hydrologic unit)

Northern Seward Peninsula(hydrologic accounting unit)

Northwest(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Bering Land Bridge National Preserve(National Preserve)

National Preserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore

Mineral occurrence model information

Model code 123
USGS model code 39e
Deposit model name Alluvial placer Sn

Nearby scientific data

(1) -166.19946, 65.9703
ListMap

Economic information

Comments on the geologic information

  • Geologic Description = The Ear Mountain upland is cored by a Late Cretaceous (76.7 +/- 2.8 my) composite biotite granite stock (Sainsbury, 1972; Hudson and Arth, 1983). Country rocks to this stock are an impure and schistose carbonate sequence of unknown but probable Paleozoic age. Tin Creek does not have headwaters that cross the contact zone of the Ear Mountain granite stock directly although tundra-mantled slopes above the headwater area continue upward for 1.5 miles south to an area of significant lode tin metallization (Ear Mountain prospect, TE060)). A USBM churn-drill hole at this locality encountered 3 feet of overburden and three feet of gravel. The gravel contained a trace of tin per cubic yard and identified minerals included calcite, quartz, diopside, actinolite, tourmaline, orthoclase, albite, limonite (pseudomorph after pyrite), and cassiterite (Mulligan, 1959, p, 30).
  • Age = Quaternary

Economic information about the deposit and operations

Development status Occurrence

Comments on exploration

  • Status = Inactive

Mining district

District name Serpentine

Comments on the workings information

  • Workings / Exploration = One USBM churn-drill hole was completed here (Mulligan, 1959).

Reference information

Bibliographic references

Comments on the references

  • Primary Reference = Mulligan, 1959 (USBM RI 5493).

General comments

Subject category Comment text
Deposit Model Name = Alluvial tin placer (Cox and Singer, 1986; model 39e)

Reporter information

Type Date Name Affiliation Comment
Reporter 10-MAY-98 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.