1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Cape Mountain Deposit

Past Producer in Alaska, United States with commodities Tin, Fluorine-Fluorite, Tungsten, Zinc
Map
XML
JSON
KML
B
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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10101035
MRDS ID A016000
Record type Site
Current site name Cape Mountain Deposit
Alternate or previous names Bartels Mines, Claims: North Star, Lucky Queen, Numerous Others

Geographic coordinates

Geographic coordinates: -167.95787, 65.58481 (WGS84)
Relative position HEAD OF CAPE CR.

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-6(quadrangle 1:63,360 scale)

Teller NE(quadrangle 1:100,000 scale)

Teller(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

Comments on the location information

  • USBM RI 3978, FIG. 2-4; USBM RI 6737, FIG. 6. 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
Fluorine-Fluorite Critical Tertiary
Tungsten Critical Tertiary
Zinc Critical Tertiary

Comments on the commodity information

  • ANOM. BE IN SS SAMPLES

Materials information

Materials Type of material
Cassiterite Ore
Fluorite Ore
Scheelite Ore
Sphalerite Ore

Alteration

  • (Local) Early Scapolite (99-60%) - Amphibole (1-40%) Skarn Associated With Seriate Granite; Later Pyroxene (90-60%) - Garnet (10-40%) - Fluorite (3-5%) - Equigranular (Mica-Troumaline-Fluorite) Granite

Analytical data

Result HIGH GRADE REPLACEMENT BODIES CONTAIN UP TO 32.93% SN, 18 SAMPLES AVERAGED 7.05% SN, USBM RI 6737, TABLE 7, P. 25
Result MOST SAMPLES FROM UNDERGROUND WORKINGS OF BARTELS MINE CONTAINED LESS THAN .05% SN, MAX. VALUES OBTAINED WERE: 10.9% SN (OVER 3 IN WIDTH), LESS THAN 0.05% WO3, AND 1.86% CAF2, DATA FROM USBM RI 3978, FIGS. 5-7 AND P. 15.

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Cape Mt. Pluton;Cape Mt. Pluton;Cape Mt. Pluton
    Rock description Cape Mt. Pluton;Cape Mt. Pluton;Cape Mt. Pluton

Nearby scientific data

(1) -167.95787, 65.58481
ListMap

Economic information

Controls for ore emplacement

  • Contact Aureole; Some Localization By Faults

Comments on the geologic information

  • XENOLITHS OF ROOF ROCK IN GRANITE; LIMESTONE OVERLAIN BY QUARTZ-SERICITE SCHIST; YOUNGEST ROCK: OLIVINE PORPHYRY DIKES. CAPE MT. PLUTON; 21 SQ. KM PLUTON COMPOSED OF SERIATE-TEXTURED BIOTITE GRANITE (92%), PEGMATITE-APLITE (5%), AND LATE-STAGE EQUIGRANULAR GRANITE (3%). LCRET K-AR, BITOTITE, 78.8 M.Y PLUS OR MINUS 2.9 M.Y.; REF. 8, P. 769.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1902
Year of first production 1905

Production statistics

  • Year 1905
    Material CONC SN
    Accuracy Estimate
    Description Ap_Grade: ^64% Sn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Conc. Tin Tin 64wt-pct

Comments on the production information

  • SHIPMENT LOST EN ROUTE TO ENGLAND.

Comments on the workings information

  • BARTELS MINE: BETWEN 1150-1250 FT OF UNDERGROUND WORKINGS ON 3 LEVELS AND 1 SUBLEVEL; USBM DUG 21 TRENCHES TOTALING 3690 FT; TOTAL AREA COVERED BY CLAIMS: 490.76AC; SEVERAL SMALL PROSPECTS IN THE AREA.

Comments on development

  • MAIN DEVELOPMENT: 1903-1909; 38 CLAIMS AND 3 MILL-SITES PATENTED IN 1911-1912; USBM TRENCHING: 1943-44.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SN MINERALIZATION IN 200-300 FT CONTACT ZONE ALONG NE MARGIN OF CAPE MTN. PLUTON; MODES OF OCCURRENCE: (1) CASSITERITE AND PYRITE IN TOURMALINIZED PERIPHERAL ZONES OF GRANITE AND DIKES; (2) CONTACT METAMORPHOSED LIMESTONE (SKARN ASSEMBLAGES); (3) CASSITERITE-BEARING QUARTZ VEINS IN GRANITE; AND (4) DISCONTINUOUS HIGH-GRADE LENTICULAR PODS OF REPLACED LIMESTONE; REPLACEMENT BODIES CONSIST OF QUART-MUSCOVITE-SERICITE-CALCITE-ACTINOLITE-TREMOLITE-CASSITERITE ASSEMBLAGE, LOCALLY VERY HIGH GRADE; TACTITE MIENRALS: WOLLASTINITE, PYROXENE, TOURMALINE, PYRITE, PYRRHOTITE, FLUORITE, SCAPOLITE, SPHALERITE, CASSITERITE, SCHEELITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey
Editor 20-SEP-1994 Mosier, Dan U.S. Geological Survey PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES.

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.