Rainbow Pits

Past Producer in Millard county in Utah, United States with commodities Tungsten, Molybdenum
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10088981
MRDS ID RE00180
Record type Site
Current site name Rainbow Pits
Alternate or previous names Rainbow Mine

Geographic coordinates

Geographic coordinates: -113.37749, 39.19162 (WGS84)
Elevation 2377
Relative position 19,800 FEET N27E FROM NOTCH PEAK

Site location context

Political divisions (FIPS codes)

Millard(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Notch Peak(quadrangle 1:24,000 scale)

Tule Valley(quadrangle 1:100,000 scale)

Delta(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sevier Lake(hydrologic unit)

Escalante Desert-Sevier Lake(hydrologic accounting unit)

Escalante Desert-Sevier Lake(hydrologic subregion)

Great Basin(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management UT)

Bureau of Land Management UT BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Utah Millard

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 019S 014W 01 NE OF NW OF NW Utah

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Tertiary

Materials information

Materials Type of material
Powellite Ore
Scheelite Ore
Andradite Gangue
Diopside Gangue
Epidote Gangue
Hornblende Gangue
Pyrite Gangue
Quartz Gangue
Vesuvianite Gangue

Alteration

  • (Local) Metasomatism, Contact Metamorphism

Analytical data

Result SAMPLES FROM THE BOTTOM OF THE PIT CONTAINED BETWEEN 0.03 AND 1.89 PERCENT WO3. AVERAGE ORE GRADE IS 0.8 PERCENT WO3.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Porphyritic Granite (Notch Peak Intrusion);
    Rock description Porphyritic Granite (Notch Peak Intrusion);
    Stratigraphic age (youngest) Late Jurassic
    Stratigraphic age (youngest) Late Cambrian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Weeks Limestone;
    Rock description Weeks Limestone;

Nearby scientific data

(1) -113.37749, 39.19162

Economic information

Geologic structures

Type of structure Regional
Structure description Sevier Thrust Belt, Basin-Range Faults Bounding The House Range
Type of structure Local
Structure description Possible Fault (Post-Mineral?)

Controls for ore emplacement

  • Contact Between Granite And Limestone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Notch Peak

Comments on the production information

  • APPROXIMATELY 3,000 TONS OF ORE CONTAINING 0.8% WO3 WERE MINED

Workings at the site

  • Type of workings Surface
    Area 0.033HA
    Overall depth 6.1M
    Overall length 45.72M
    Overall width 7.62M

Comments on the workings information

  • PIT THAT YIELDED 3,000 TONS OF ORE MEASURED 150 BY 25 BY 20 FEET. AN UNPUBLISHED REPORT LISTS THE PIT AS MEASURING 200 BY 40 BY 25 FEET.

Comments on development

  • THREE WAGON DRILL HOLES WERE DRIVEN IN AN EXPLORATION PROGRAM TO A DEPTH OF 50 FEET, EACH SPACED 100 FEET FROM THE GRANITE-LIMESTONE CONTACT.

Reference information

Bibliographic references

  • Deposit

    EVERETT, 1961, TUNGSTEN DEPOSITS IN UTAH: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8014, 44P.

  • Deposit

    PETERSEN, D.M., 1976, GEOCHEMISTRY AND GEOLOGY OF THE NOTCH PEAK TUNGSTEN DEPOSITS, MILLARD COUNTY, UTAH: SALT LAKE CITY, UTAH, UNIVERSITY OF UTAH, M.S. THESIS, 74P.

  • Deposit

    HINTZE, L.F., 1974, PRELIMINARY GEOLOGIC MAP OF THE NOTCH PEAK QUADRANGLE, MILLARD CONTY, UTAH: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-636.

  • Deposit

    GRAY, R.S., 1956, PRELIMINARY REPORT OF GEOLOGICAL INVESTIGATION OF THE PROPERTY OF THE TREASURE MONTAIN MINING CO., HOUSE TANGE, MILLARD COUNTY, UTAH: UNPUBLISED REPORT.

  • Production

    EVERETT, 1961

General comments

Subject category Comment text
Deposit THE DEPOSIT CONSIST OF SCHEELITE DISSEMINATED IN ANDRADITE-RICH TACTITE. THE TACTITE WAS 4 METERS THICK AGAINST THE GRANITE AND THINNED TO 1.6 METERS ON THE EAST SIDE OF THE PIT. TACTITE IS CAPPED BY THREE TO FIVE METERS OF COARSELY CRYSTALLINE DARK-GRAY "SANDED" MARBLE. THE TACTITE IS ABUTTED AGAINST THE GRANITE AND MAY BE CONFORMABLE WITH AN UNDERLYING GRANITE SILL DIPPING 12 DEGREES TO THE NORTHWEST OR MAY BE IN FAULT CONTACT WITH THE GRANITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Shubat, Michael A. Utah Geological and Mineral Survey

Beyond USGS

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