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Dover Copper Group

Past Producer in Greenlee county in Arizona, United States with commodities Copper, Silver, Gold, Lead
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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 10048286
MRDS ID M800413
Record type Site
Current site name Dover Copper Group
Alternate or previous names Mines: Keating, Dover, Tucky, Margot, Goldbelt, Bell Group, St. Joe Group, Anita Group, Margot Group, Tucky Group, Gold Belt Group, Keating Group
Related records 10282640

Geographic coordinates

Geographic coordinates: -109.40537, 33.10593 (WGS84)
Relative position 1.0 MILE SW OF CORONADO MINE; 3.0 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)

Upper Gila-San Carlos Reservoir(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 07,06,18 NW OF NW (07); SW (06); NW (18); SW (18) Arizona

Comments on the location information

  • UTM AND GEODETIC COORDINATES GIVEN FOR KEATING MINE; KEATING MINE IS LOCATED 0.25 MILES SE OF WATER SPRING AT THE HEAD OF HORSESHOE GULCH AND LIES ON SHARED BORDER OF SECTIONS 6 AND 7; DOVER MINES ARE AND PETE COBO, MOSCHETTI AND GOMEZ, HAYNES AND CAMPBELL, PAETZEL AND BOKERIS, CESARIO GOMEZ, WM. J. KEATING, FRED W. SHERMAN, FRANK COX AND CO, M.A. HANNA MINING CO ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary
Lead Secondary

Materials information

Materials Type of material
Chalcocite Ore
Chrysocolla Ore
Covellite Ore
Malachite Ore
Pyrite Ore
Hematite Gangue
Kaolin Gangue
Limonite Gangue

Alteration

  • (Local) Intensive Surface Oxidation To Unknown Depths And Formation Of Gossans

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Rock unit name Morenci Granite Porphyry;Coronado Quartzite
    Rock description Morenci Granite Porphyry;Coronado Quartzite
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.5
    Stratigraphic age (youngest) Late Ordovician
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Longfellow Limestone
    Rock description Longfellow Limestone
    Stratigraphic age (youngest) Tertiary
    Chronological age 55.2

Nearby scientific data

(1) -109.40537, 33.10593
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Trending Diabasic And Granite Prophyry Dike Intrusives Into Quartzite And Limestones
Type of structure Local
Structure description Step-Faulting Along Veins In Locality

Ore body information

  • General form IRREGULAR
    Strike N
    Dip 22 SW
    Width 5.49M
    Depth to bottom 76.2M

Controls for ore emplacement

  • Ne-Trending Small Fault Fissure Between Granite On The South And Quartzite On Thenorth

Comments on the geologic information

  • ABOVE DESCRIBES KEATING DEPOSITS; GEOLOGY OF DOVER MINE DEPOSITS ASSOCIATED WITH THE CORONADO VEIN IS SIMILAR (SEE USGS PROFESSIONAL PAPER 43,1905); TUCKY MINE IS LOCATED ON A LATE TERTIARY REPLACEMENT VEIN IN THE LONGFELLOW LIMESTONE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1913
Year of last production 1945

Mining district

District name Copper Mountain District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Dover Copper Mining Co ; Principal Owner: W. V. Tiscornia
    First year 1957

Workings at the site

  • Type of workings Surface/Underground
    Length 304.8M
    Overall depth 182.88M

Comments on the workings information

  • ABOVE DESCRIBES KEATING MINE; DEVELOPMENT OF KEATING MINE INCLUDED TWO 250 FT SHAFTS, THREE WINZES OF 10 TO 119 FT, SEVERAL TUNNELS; KEATING MINE WAS THE MOST PRODUCTIVE OF ALL MINES OWNED BY DOVER COPPER MINING CO.

Comments on development

  • OPERATORS INCLUDED AUTO SPECIALTIES MFG CO, GREGG DEGRAZIA, TOM COCKS, CLIFTON-MORENCI COPPER CO, KEATING COPPER SYNDICATE LTD, KEATING COPPER MINES, GRANT LEASING CO, DOVER COPPER MINING CO, CY GOMEZ AND PETE COBO, MOSCHETTI AND GOMEZ HAYNES AND CAMPBELL, PAETZEL AND BOKERIS, CESARIO GOMEZ, WM. J. KEATING, FRED W. SHERMAN, FRANK COX AND CO., M.A. HANNA MINING CO

Reference information

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    BLM DISTRICT SHEET 840

  • Deposit

    STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGE 616, CLIFTON MORENCI CO

  • Deposit

    ABGMT CLIPPINGS FILE

  • Deposit

    BENNETTI K.C., 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCIA METCALF DISTRICT, GREEN LEE COUNTY, ARIZONA: M.S. THESIS, UNIVERSITY OF ARIZONA, 15.3 P.

  • Deposit

    ARIZONA DEPRT OF MINERAL RESOURCES FILE DATA

  • Deposit

    MINING REPORTER, VOL. LIII, NO. 16 (APRIL 19, 1906), PAGES 386-390, REVIVAL OF GOLD MINING IN CLIFTON-MORENCI, ARIZONA, DISTRICT

  • Deposit

    USBM FILES, UNDER DOVER

  • Deposit

    USGS PP 43, P. 344-345

General comments

Subject category Comment text
Deposit 136 PATENTED CLAIMS OWNED BY DOVER COPPER MINING CO (1957); ABOVE DESCRIBES KEATING VEIN ON WHICH KEATING MINE IS LOCATED; DOVER MINES LOCATED ON WESTERN PRONG OF CORONADO VEIN
Deposit SEE ALSO: GOLD BELT MINES ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-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.

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.