Zinc Hill

Past Producer in Inyo county in California, United States with commodities Zinc, Lead, Silver
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. 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 10076668
MRDS ID W023820
Record type Site
Current site name Zinc Hill
Alternate or previous names Utacaia Group, Colorado Group
Related records 10139049

Geographic coordinates

Geographic coordinates: -117.50229, 36.31441 (WGS84)
Elevation 1181
Relative position 5 3/4 MILES NE OF DARWIN

Site location context

Political divisions (FIPS codes)

Inyo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Darwin(quadrangle 1:24,000 scale)

Darwin Hills(quadrangle 1:100,000 scale)

Death Valley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Panamint Valley(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Federal lands

Death Valley National Park(National Park)

National Park NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019S 041E 02 California

Comments on the location information

  • UTM EST. ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Zinc Critical Primary
Lead Secondary
Silver Secondary

Comments on the commodity information

  • GALENA IS LOCALLY ABUNDANT, PYRITE AND CHALCOPYRITE PRESENT IN MINOR QUANTITIES.

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Calcite Gangue
Gypsum Gangue
Jasper Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -117.50229, 36.31441

Economic information

Geologic structures

Type of structure Local
Structure description Faults; Zinc Hill Fault Bounds The Horst Of Mississippian Limestone On The West And Has Stratigraphic Throw Of 27,000 Ft.

Comments on the geologic information

  • GEOL.DESC: ROCKS IN AREA ARE MARBLE AND LIMESTONE OF MISSISSIPPIAN AGE FAULTED AGAINST SILTY LIMESTONE OF PERMIAN AGE. MISSISSIPPIAN LIMESTONE IS FAULTED ON BOTH EAST AND WEST SIDES OF THE MINE AREA AGAINST SILTY BLUISH - GRAY LIMESTONE OF OWENS VALLEY FORMATION, PERMIAN AGE. DIORITE DIKE 1 - 2 FT. THICK, CUTS MISSISSIPPIAN ROCKS IN SOUTHERN END OF MINE, STRIKES N 65 W, DIPS VERTICALLY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Production years 1917 - 1942 , 1941 - 1947

Production statistics

  • Year 1942
    Period - 1942
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^44.18 % Zn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Zinc Zinc 44wt-pct
  • Year 1947
    Period - 1947
    Material ORE
    Accuracy Accurate
    Description Cp_Grade: ^22.28 % Zn, 1.33 % Pb, 1.43 Oz Ag/Ton.
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 40g/mt
    Major Ore Lead Lead 1wt-pct
    Minor Ore Zinc Zinc 22wt-pct

Comments on the production information

  • G7 ; OXIDE ORE, G8 ; SULFIDE ORE

Comments on the workings information

  • NUMEROUS OPEN CUTS, NEAR SURFACE STOPES AND SHORT ADITS

Reference information

General comments

Subject category Comment text
Deposit BODIES OCCUR PARALLEL TO BEDDING AND TO LESSER EXTENT ALONG FAULTS WHERE THEY CUT FAVORABLE STRATIGRAPHIC HORIZON. THE FAVORABLE ORE HORIZON CROPS OUT FOR 1,500 FT. IN A NW DIRECTION, IT IS CUT OFF BY FAULTS AT BOTH ENDS.
Deposit MOST OF ORE REMAINING IN MINE IS OXIDIZED ZINC ORE, CONSISTING MAINLY OF HEMIMORPHITE, HYDROZINCITE AND LIMONITE, LESSER AMOUNTS OF CERUSSITE, ANGLESITE, SMITHSONITE AND SOME BLUE AND GREEN SECONDARY COPPER MINERALS. MORE DETAILED INFORMATION CONTAINED IN REPT. 51

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey

Beyond USGS

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

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.