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  3. Mineral Resource Data System (MRDS)

Crosby Creek Placer Tin Occurrence

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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10002559
MRDS ID A013502
Record type Site
Current site name Crosby Creek Placer Tin Occurrence

Geographic coordinates

Geographic coordinates: -166.16706, 65.89319 (WGS84)
Elevation 107

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)

Geographic areas

Country State
United States Alaska

Comments on the location information

  • LOCATION TAKEN FROM USBM RI 5493, P. 20, FIG. 10, SAMPLE NOS. BM 4, 5; ALSO FROM USGS MF-426, LOC. 59. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Tin Critical Primary

Materials information

Materials Type of material
Cassiterite Ore

Analytical data

Result CHURN-DRILL SAMPLES BM 4, 5: 0.05% SN, 0.01 LBS/CY SN (USBM RI 5493, P. 32 TABLE 7).

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -166.16706, 65.89319
ListMap

Economic information

Ore body information

  • Thickness 2.74M
    Depth to top 0.3M
    Depth to bottom 3.05M

Controls for ore emplacement

  • Quartz, Calcite, Grossularite Garnet, Albite, Limorite, Blue And Brown Tourmaline, Epidote, And Vesuvianite.

Comments on the geologic information

  • MAJOR.UNITS: BEDROCK IS COVERED BY TUNDRA, BUT IS PROBABLY PRECAMBRIAN GRAPHITIC SILTITE OF "SLATE OF THE YORK REGION" NEAR CONTACT WITH LIMESTONE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1953
Discoverer Usbm

Mining district

District name Port Clarence

Land status

Ownership category State

Comments on the workings information

  • 11.0 AND 12.5 FT CHURN-DRILL HOLES MADE.

Comments on development

  • CHURN-DRILL SAMPLED BY USBM IN 1953

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 11.0 CHURN-DRILL HOLE EXPOSED 1.0 FT. OF TUNDRA OVERBURDEN, 9.0 FT OF GRAVEL, AND 9.0 FT. OF PAY HORIZON. CASSITERITE IDENTIFIED IN SAMPLE.
Deposit STREAM GRADIENT ABOUT 100 FT./MI. ; INFO.SRC : 1 PUB LIT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1987 Niles, L.P. (Huber, D.F.) U.S. Geological Survey

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.