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Shaft Northwest of Twelvemile Knoll

Past Producer in Beaver county in Utah, United States with commodities Lead, Zinc, Silver
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10011241
MRDS ID D005778
Record type Site
Current site name Shaft Northwest of Twelvemile Knoll

Geographic coordinates

Geographic coordinates: -113.17274, 38.29552 (WGS84)
Elevation 1713
Relative position 1.3 MILES NNW OF 12 MILE KNOLL

Site location context

Political divisions (FIPS codes)

Beaver(county)

Utah(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Picacho Peak(quadrangle 1:24,000 scale)

Wah Wah Mountains South(quadrangle 1:100,000 scale)

Richfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Beaver Bottoms-Upper Beaver(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 Beaver

Public Land Survey System information

Meridian Township Range Section Fraction State
Salt Lake 029S 012W 11 Utah

Comments on the location information

  • SECTION SUBDIVISIONS SE 1/4 SW 1/4 SW 1/4 SECTION 11

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Silver Secondary

Materials information

Materials Type of material
Jarosite Ore
Plumbojarosite Ore
Smithsonite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Intrusives Undifferientiated
    Rock description Intrusives Undifferientiated
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Kaibab-Plympton Formation;Toroweap Formation
    Rock description Kaibab-Plympton Formation;Toroweap Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -113.17274, 38.29552
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Colorado Plateau/Basin & Range Transition Zone, Cordilleran Hingeline
Type of structure Local
Structure description Eastward Dipping Homocline (Star Range) Believed To Be Part Of An Eastward Moving Thrust Plate.

Ore body information

  • General form IRREGULAR VEIN
    Strike N60W
    Dip 80S
    Thickness 1M
    Length 90M
    Width 15M
    Depth to top 5M
    Depth to bottom 7M

Controls for ore emplacement

  • Lateral Replacement Of Favorable Limestone Beds Adjacent To Cross Cutting Fissures

Economic information about the deposit and operations

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

Mining district

District name Star District

Land status

Ownership category BLM Administrative Area

Workings at the site

  • Type of workings Underground
    Length 30.48M
    Overall depth 30.48M

Reference information

Bibliographic references

  • Deposit

    ABOU-ZIED, S, AND WHELAN, J, A, 1973, GEOLOGY AND MINERALOGY OF THE MILFORD FLAT QUADRANGLE, STAR DISTRICT, BEAVER CO, UT, UGMS SPEC S 46

  • Deposit

    GEOLOGY OF THE MILFORD AREA, 1973, UTAH GEOL ASSOC PUBL 3.

  • Deposit

    PERRY, L, I, 1976, LEAD AND ZINC IN UTAH: UTAH GEOL & MIN SURVEY OPEN FILE REPORT #22.

  • Deposit

    BAER, J L, 1962, GEOL OF THE STAR RANGE, BEAVER COUNTY, UTAH: B Y U STUDIES, V 9, PART 2, P 29-52.

  • Deposit

    1913 RECON BUTLER, B S, USGS PP #80

  • Deposit

    1920 RECON BUTLER, B S, USGS PP #111

  • Deposit

    1962 GEOLMAP BAER, J L, BYU STUDIES V 9

  • Deposit

    BAETCKE, G B, 1969, STRATIGRAPHY OF THE STAR RANGE AND RECONNAISSANCE STUDY OF THREE SELECTED MINES: UNIV OF UTAH P HD THESIS.

  • Deposit

    1963 COMPILE HEYL, A V, USGS BULL 1135-B

  • Deposit

    1973 COMPILE UGA PUBL #3

  • Deposit

    1973 GEOLMAP UGMS SS #46

  • Production

    EVERTS, M L, 1979, ON SITE INVESTIGATIONS: UT GEOL AND MIN SUR

General comments

Subject category Comment text
Deposit SHAFT 100 FT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1979 Everts, Michael L. Bureau of Land Management
Updater 01-JUL-1985 Shubat, Michael A. U.S. Geological Survey

Beyond USGS

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

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