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Coronado Mine

Producer in Greenlee county in Arizona, United States with commodities Copper, Zinc, Lead, Manganese
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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 10109876
MRDS ID M800425
Record type Site
Current site name Coronado Mine
Alternate or previous names Horseshoe Shaft, Arizona Copper Co Group, Coronado Mining Co Property
Related records 10186633

Geographic coordinates

Geographic coordinates: -109.39843, 33.11177 (WGS84)
Elevation 1753
Relative position 2.0 MILES WEST OF METCALF.

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Copperplate Gulch(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 06 E2 Arizona

Comments on the location information

  • ABOVE LOCATION COORDINATES DESCRIBE THE MAIN WORKINGS OF THE CORONADO MINE; THE HORSESHOE SHAFT, AND EXTENSION OF THE MINE IS LOCATED ABOUT 3500 FT TO THE WEST. ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary
Zinc Critical Tertiary
Lead Tertiary
Manganese Critical Tertiary

Comments on the commodity information

  • LIBETHENITE OCCURS AS SMALL CRYSTALS IN CAVITIES AND SEAMS IN A QUARTZITIC GANGUE.

Materials information

Materials Type of material
Chalcocite Ore
Chrysocolla Ore
Coronadite Ore
Libethenite Ore
Malachite Ore
Pyrite Ore
Kaolin Gangue
Limonite Gangue

Alteration

  • (Local) Sericitic Alterration Accompanied By Quartz Cementation Occurring Within Friction Breccia, Diabase And Crushed Material Of The Fault

Analytical data

Result 1905 ASSAY VALUES AVERAGED 11.17 AND 21.95% CU
Result 67 AND 48.9% SI
Result 6.91 AND 9.41% FE

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Rock unit name Precambrian Granite-Granodiorite Complex;Coronado Quartzite
    Rock description Precambrian Granite-Granodiorite Complex;Coronado Quartzite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -109.39843, 33.11177
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Diabase And Porphyry Dikes Connected By A Fissure Vein System, Of Which The Coronado Vein Is The Most Important
Type of structure Local
Structure description Fissure Is Followed In Places By A Diabase Dike That Shows Evidence Of Crushing And Movement On The Vein; Horseshoe Lode Consists Of Alterred Granite And Contact Breccia

Ore body information

  • General form TABULAR
    Strike EW
    Dip 75 S
    Length 3218.6M
    Width 60.96M
    Depth to bottom 182.88M
  • General form TABULAR
    Dip 75 S

Controls for ore emplacement

  • Ew-Trending Fault Fissure Between Granite On The North And Quartz On The South

Comments on the geologic information

  • CROPPINGS CONTAIN COPPER CARBONATES THAT ARE REPLACED AT SLIGHT DEPTHS BY CHALCOCITE, WHICH IS IN TURN REPLACED AT GREATER DEPTHS BY PYRITE AND CHALCOPYRITE. DIABASE DIKE HAS MAXIMUM WIDTH OF 70 FT. VEIN FORMATION IS BELIEVED TO BE CONNECTED WITH THE INTRUSION OF DIABASE DIKES WHICH ARE SLIGHTLY OLDER THAN THE PORPHYRY DIKES THROUGHOUT THE DISTRICT. THE VALUE OF THE ORE DEPRECIATES RAPIDLY WITH DEPTH. OXIDIZED ZONE REACHES BELOW THE 400 FT LEVEL WHILE DEPTH OF CHALCOCITE ORE RANGES FROM 300 TO 600 FT.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1874
Discoverer Julius Freudenthal (Horseshoe Mine); Morris Leszynsky (Coronado Mine)
Year of first production 1913
Year of last production 1918

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

  • ADDITIONAL PRODUCTION DATA MIGHT BE INCLUDED UNDER LONGFELLOW METCALF MINE; LONGFELLOW METCALF ALSO INCLUDES THE OTHER ARIZONA COPPER CO MINE DATA OF THE DETROIT, LONGFELLOW, METCALF, YAVAPAI, HUMBOLDT, MAMMOTH, AND JOY MINES.

Workings at the site

  • Type of workings Surface/Underground
    Length 2865.12M
    Overall depth 335.28M

Comments on the workings information

  • DEVELOPMENTS INCLUDED THE 3200 FT LONG CORONADO INCLINE CONNECTED TO A ONE MILE LONG TRAMWAY ENDING AT THE CORONADO MINE (INCLINE STARTS AT CHASE CREEK); ONE OPEN CUT LOCATED ONE MILE TO WEST OF MAIN SHAFTS AND IN HORSESHOE GULCH (CONNECTED TO MINES BY AN AERIAL TRAMWAY); SEVERAL WINZES AND STOPES TO DEPTHS OF 300 FT; 200 FT DEEP HORSESHOE SHAFT LOCATED TO WEST OF MAIN WORKINGS; 2 OTHER SHAFTS, ONE WITH A DEPTH OF 1100 FT; 9400 FT LONG ADIT.

Comments on development

  • OWNERS INCLUDED CORONADO MINING CO, ARIZONA COPPER CO LTD; PRODUCTION DATA PRIOR TO 1913 AND AFTER 1918 MIGHT BE INCLUDED IN THE ARIZONA COPPER CO LTD PRODUCTION STATISTICS (SEE LONGFELLOW METCALF METCALF

Reference information

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA.

  • Deposit

    WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA, M.A. THESIS, UNIVERSITY OF ARIZONA, P. 17.

  • Deposit

    ARIZ BUR MINES BULL 149, NO. 15.

  • Deposit

    USGS PP 43, P. 338-344.

  • Deposit

    STEVENS, H.J., 1911, THE COPPER HANDBOOK, V. X, P. 356-357, ARIZONA COPPER CO LTD.

  • Deposit

    WEED, W.H., 1918, THE MINES HANDBOOK, V. XIII, P. 470-471, ARIZONA COPPER CO LTD.

  • Deposit

    USBM FILES, CORONADO MINE.

  • Deposit

    ABGMT CLIPPINGS FILE, CORONADO COPPER CO, ARIZONA COPPER CO LTD.

  • Deposit

    BLM DISTRICT SHEET 840.

  • Deposit

    LANGTON, J.M., 1973, ORE GENESIS IN THE MORENCI-METCALF DISTRICT. AMERICAN INSTITUTE OF MING, METALLURGICAL, AND PETROLEUMENGINEERS: TRANSACTIONS, V. 254, P. 256.

General comments

Subject category Comment text
Deposit 3 PATENTED CLAIMS ADJACENT TO THE DOVER COPPER GROUP.
Deposit SEE ALO: DOVER COPPER GROUP FOR REGIONAL GEOLOGICAL INFORMATION. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 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.

External references

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.