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Humboldt Mine

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

Geologic information

Identification information

Deposit ID 10088900
MRDS ID M800409
Record type Site
Current site name Humboldt Mine
Alternate or previous names Liverpool Tunnel, Part of Arizona Copper Co Group

Geographic coordinates

Geographic coordinates: -109.36676, 33.07871 (WGS84)
Elevation 1426
Location accuracy 100(meters)
Relative position UNDER PRESENT TOWN OF MORENCI., Used Blm District Sheet 840 And Usgs Professional Paper 43

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clifton(quadrangle 1:24,000 scale)

Clifton(quadrangle 1:100,000 scale)

Clifton(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004S 029E 16 E2 OF SW OF W2 OF SE Arizona

Comments on the location information

  • SHAFT LOCATED IN W2 OF SE QUARTER OF SECTION 16; SITUATED IN THE CENTER OF TOWN (SEE USGS PROFESSIONAL PAPER 43 (1905), PAGE 41) AT THE SE FOOT OF COPPER MOUNTAIN. ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary
Zinc Critical Secondary

Materials information

Materials Type of material
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Malachite Ore
Pyrite Ore
Sphalerite Ore
Epidote Gangue
Garnet Gangue
Hematite Gangue
Limonite Gangue
Magnetite Gangue
Pyroxene Gangue
Sericite Gangue

Alteration

  • (Local) Surface Oxidation Of Chalcocite Zone; Chalcocite Replace Pyrite

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Morenci Granite Prophyry;Coronado Quartzite
    Rock description Morenci Granite Prophyry;Coronado Quartzite
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.5
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.2
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Modoc Limestone;Morenci Shale;Longfellow Limestone
    Rock description Modoc Limestone;Morenci Shale;Longfellow Limestone
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.5
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.2

Nearby scientific data

(1) -109.36676, 33.07871
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Trending Fissure Veins Containing Rich Chalcocite Ore; Between The Humboldt Vein And Another Fissure Vein 200 Ft Distant Lies The Great Mass Of Concentrating Ore
Type of structure Local
Structure description Extensive Seam Impregnations Of The Country Rock Are Rarely Confined By Distinct Walls; Veins Cut Across Both Porphyry And Metamorphic Limestone; Vein Footwall Is Generally A Well-Defined Plane And Follows Porphyry Dikes In Some Places

Ore body information

  • General form DISSEMINATED
    Strike N25E
    Dip 70 SE
    Thickness 304.8M
    Length 609.6M
    Width 182.88M
    Depth to top 60.96M

Controls for ore emplacement

  • Ne Trending Fissure Vein Containing Several Seams Of Massive Chalcocite, Adjoined By Decomposed Porphyry With Disseminated Grains And Small Seams Of Chalcocite And Pyrite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1892
Discoverer Miles Joy?
Year of first production 1892
Year of last production 1932

Mining district

District name Copper Mountain District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Phelps Dodge Corp., Morenci Branch

Comments on the production information

  • PRODUCTION DATA INCLUDED IN LONGFELLOW METCALF MINE; LONGFELLOW METCALF ALSO INCLUDES THE OTHER ARIZONA COPPER CO MINES OF DETROIT, LONGFELLOW, METCALF, CORONADO, YAVAPAI, MAMMOTH, AND JOY MINES.

Workings at the site

  • Type of workings Surface/Underground
    Length 914.4M
    Overall depth 121.92M
    Overall length 3218.6M

Comments on the workings information

  • HUMBOLDT SHAFT IS LOCATED ON JOY CLAIM ADJACENT TO HUMBOLDT PROPERTY ON SOUTH AND IS 400 FT DEEP; DEVELOPMENTS INCLUDED SEVERAL CROSSCUTS, SEVERAL STOPES WITH LENGHTS OF 500 FT AND WIDTHS OF 40 FT OR LESS,HUMBOLDT TUNNEL 1650 FT LONG, LIVERPOOL TUNNEL STARTING FROM THE NW SIDE OF COPPER MOUNTAIN

Comments on development

  • OPERATORS INCLUDED ARIZONA COPPER CO LTD; LOCATED ON THE JOY CLAIM

Reference information

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA.

  • Deposit

    BLM DISTRICT SHEET 840.

  • Deposit

    USGS PP 43, P. 270-276.

  • Deposit

    STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGES 356-358, ARIZONA COPPER CO LTD.

  • Deposit

    WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA: M.A. THESIS, UNIVERSITY OF ARIZONA, P. 39-40.

  • Deposit

    ABGMT CLIPPINGS FILE, ARIZONA COPPER CO LTD.

  • Deposit

    BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, AZ: MS THESIS UNIV OF AZ, 153 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DECOMPOSED PORPHYRY SURROUNDING THE VEINS CONSIST PRIMARILY OF SERICITE, QUARTZ, PYRITE AND CHALCOCITE; ORE BODY IS ALMOST EXCLUSIVELY CONFINED TO PORPHYRY; VEINS ENTERING SEDIMENTARY MASSES BECOME NARROW AND POOR; REGIONAL FAULTING OCCURRED AFTER VEIN EMPLACEMENT; HUMBOLDT ORE BODY IS ONE OF 4 PRINCIPAL LODES AT MORENCI (OTHERS ARE THE WELLINGTON, RYERSON, AND WEST YANKIE); RICH CHALCOCITE ORE IS REPLACED AT DEPTH BY A STRONG VEIN OF MASSIVE LOW-GRADE PYRITE AND CHALCOPYRITE WITH WELL-DEFINED WALLS OF GREATLY ALTERRED PORPHYRY AND VARYING WIDTH.HUMBOLDT VEIN EXTENDS FROM NE TO SW THROUGH COPPER MOUNTAIN AND IS 1 TO 4 FT WIDE. HUMBOLDT MINE IS SITUATED ON THE HUMBOLDT AND WELLINGTON LODES

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-81 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

Maps centered on this site

Authoritative Arizona resources

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