Delta Mine

Past Producer in Maricopa county in Arizona, United States with commodities Gold, Silver, Copper
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. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10104089
MRDS ID M241378
Record type Site
Current site name Delta Mine
Alternate or previous names Max Delta, Ace
Related records 10162241

Geographic coordinates

Geographic coordinates: -112.09823, 33.32897 (WGS84)
Elevation 546
Relative position ABOUT 2 MILES FROM SUMMIT OF SOUTH MOUNTAIN (LOCATION OF TV TOWERS).

Site location context

Political divisions (FIPS codes)

Maricopa(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lone Butte(quadrangle 1:24,000 scale)

Phoenix South(quadrangle 1:100,000 scale)

Phoenix(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Gila(hydrologic unit)

Middle Gila(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Maricopa

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 001S 003E 19 NW OF SW OF NW Arizona

Comments on the location information

  • CLAIMS EXTEND INTO SECTION 18 OF T.15 R3E AND SECTIONS 13 AND 24 OF T.15 R.2E; MAIN WORKINGS IN SECTION 19, T.15 R.3E; UTM'S MEASURED TO ADIT SYMBOL. INFO FROM LAND.ST :01; 40 (1964)

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Silver Ore
Hematite Gangue
Limonite Gangue
Quartz Gangue

Alteration

  • (Local) Pyrite Locally Altered To Limonite And Hematite. Wall Rocks-Sericitic Alteration

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Telegraph Pass Granite And South Mountains Granodiorite
    Rock description Telegraph Pass Granite And South Mountains Granodiorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Estrella Gneiss
    Rock description Estrella Gneiss

Nearby scientific data

(1) Early Proterozoic granitic rocks

Economic information

Geologic structures

Type of structure Regional
Structure description North-Northwest-Striking Dikes And Fractures
Type of structure Local
Structure description North-Northwest Fractures, Strong Local Disturbance On Fractures

Ore body information

  • General form LENTICULAR
    Strike N 60 W
    Dip 5ONE
    Thickness 2.44M
    Depth to bottom 91.44M

Controls for ore emplacement

  • North-Northwest To North Striking Extension Fractures-Veins

Comments on the geologic information

  • GOLD-QUARTZ VEINS OCCUR IN PRECAMBRIAN ESTRELLA GNEISS ADJACENT TO MICRODIORITE DIKES AND NEAR TELEGRAPH PASS GRANITE. VEINS OCCUR IN EXTENSION FRACTURES THAT ARE RELATED TO MIDDLE TERTIARY EXTENSION (METAMORPHIC CORE COMPLEX)

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1895
Year of first production 1913
Year of last production 1942

Mining district

District name Salt River Mountains District

Ownership information

  • Type Owner
    Owner Flagg, A. L.
    First year 1953
  • Type Owner
    Owner Mc Lean, C. E.
    First year 1953
  • Type Owner
    Owner Mc Intosh, H. B.
    First year 1953

Workings at the site

  • Type of workings Underground
    Overall depth 152.4M

Comments on the workings information

  • MAIN WORKINGS ON THE DELTA CLAIM INCLUDE A 500 FOOT INCLINED SHAFT WITH 2500 FT OF LATERAL WORK; TWO ADITS FROM NORTH INTERCEPT SHAFT AT 50 AND 100 FEET; OTHER WORKINGS ON OTHER CLAIMS INCLUDE 62 FOOT TUNNEL WITH 200 FEET OF DRIFTING, 400 FOOT TUNNEL WITH 100 FEET OF CROSSCUTTING, 100 FOOT SHAFT, 124 FOOT SHAFT

Comments on development

  • 9 PATENTED CLAIMS AND 3 UNPATENTED CLAIMS (DELTA, DELTA NO. 2,3,4, HALL, RICHARD STANTON, SILAS SHOEMAKER, MAXIMILLION, MONTANA, LAGGAT, ORO GRANDE); PREVIOUS OWNERS AND OPERATORS INCLUDE MAX DELTA GOLD MINING CO. (1910'S), ACE MINING COMPANY (1920'S AND 30'S) (H.P. MCINTOSH, CLAUDE MCLEAN, WILLIAM SNOW, OWNERS; HOWARD GENTRY, MANAGER), PARKVIEW MINING CO. (1940'S)

Reference information

Bibliographic references

  • Deposit

    ARIZ BUR MINES BULL 137, P. 166-167.

  • Deposit

    ARIZ BUR MINES BULL 140, P. 94.

  • Deposit

    ABGMT CLIPPINGS FILES.

  • Deposit

    ABGMT-USBM FILE DATA.

  • Deposit

    ADMR FILE DATA.

  • Deposit

    REYNOLDS, S.J., 1982, GEOLOGY AND GEOCHRONOLOGY OF THE SOUTH MOUNTAINS, CENTRAL ARIZONA: TUCSON, UNIV. OF ARIZONA PH. D. DISSERTATION, 220 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DELTA VEIN SYSTEM CONSISTS OF 3 INTERSECTING VEINS WITH STRIKE AND DIPS OF N 60 W 5ONE, N 30 W 6ONE, N 10 W 20 TO 40 NE; WEST DELTA VEIN SYSTEM STRIKES NW ALSO BUT DIPS SW STOCK WORKS UP TO 8 FT WIDE ARE QUARTZ RICH. COARSE GRAYISH WHITE QUARTZ WITH IRREGULAR BUNCHES AND DISSEMINATIONS OF PYRITE.
Deposit Discovery Year: 1890'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1982 Roth, Frances A. (Gest, Don E.) U.S. Geological Survey
Updater 01-MAY-1995 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

Authoritative Arizona resources

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